字串
簡介
Laravel 包含多種用於操作字串值的函式。其中許多函式被框架本身所使用;然而,如果您覺得方便,也可以自由地在您自己的應用程式中使用它們。
可用方法
字串
__class_basenameepreg_replace_arrayStr::afterStr::afterLastStr::apaStr::asciiStr::beforeStr::beforeLastStr::betweenStr::betweenFirstStr::camelStr::charAtStr::chopStartStr::chopEndStr::containsStr::containsAllStr::doesntContainStr::doesntEndWithStr::doesntStartWithStr::deduplicateStr::endsWithStr::excerptStr::finishStr::fromBase64Str::headlineStr::inlineMarkdownStr::isStr::isAsciiStr::isJsonStr::isUlidStr::isUrlStr::isUuidStr::kebabStr::lcfirstStr::lengthStr::limitStr::lowerStr::markdownStr::maskStr::matchStr::matchAllStr::isMatchStr::orderedUuidStr::padBothStr::padLeftStr::padRightStr::passwordStr::pluralStr::pluralStudlyStr::positionStr::randomStr::removeStr::repeatStr::replaceStr::replaceArrayStr::replaceFirstStr::replaceLastStr::replaceMatchesStr::replaceStartStr::replaceEndStr::reverseStr::singularStr::slugStr::snakeStr::squishStr::startStr::startsWithStr::studlyStr::substrStr::substrCountStr::substrReplaceStr::swapStr::takeStr::titleStr::toBase64Str::transliterateStr::trimStr::ltrimStr::rtrimStr::ucfirstStr::ucsplitStr::ucwordsStr::upperStr::ulidStr::unwrapStr::uuidStr::uuid7Str::wordCountStr::wordWrapStr::wordsStr::wrapstrtranstrans_choice
Fluent 字串
afterafterLastapaappendasciibasenamebeforebeforeLastbetweenbetweenFirstcamelcharAtclassBasenamechopStartchopEndcontainscontainsAlldecryptdeduplicatedirnamedoesntContaindoesntEndWithdoesntStartWithencryptendsWithexactlyexcerptexplodefinishfromBase64hashheadlineinlineMarkdownisisAsciiisEmptyisNotEmptyisJsonisUlidisUrlisUuidkebablcfirstlengthlimitlowermarkdownmaskmatchmatchAllisMatchnewLinepadBothpadLeftpadRightpipepluralpositionprependremoverepeatreplacereplaceArrayreplaceFirstreplaceLastreplaceMatchesreplaceStartreplaceEndscansingularslugsnakesplitsquishstartstartsWithstripTagsstudlysubstrsubstrReplaceswaptaketaptesttitletoBase64toHtmlStringtoUritransliteratetrimltrimrtrimucfirstucsplitucwordsunwrapupperwhenwhenContainswhenContainsAllwhenDoesntEndWithwhenDoesntStartWithwhenEmptywhenNotEmptywhenStartsWithwhenEndsWithwhenExactlywhenNotExactlywhenIswhenIsAsciiwhenIsUlidwhenIsUuidwhenTestwordCountwordswrap
字串
__()
__ 函式使用您的 語系檔 來翻譯給定的翻譯字串或翻譯鍵:
echo __('Welcome to our application');
echo __('messages.welcome');如果指定的翻譯字串或翻譯鍵不存在,__ 函式將會回傳給定的值。因此,使用上述範例,如果翻譯鍵不存在,__ 函式將回傳 messages.welcome。
class_basename()
class_basename 函式會回傳給定類別的名稱,並移除類別的命名空間:
$class = class_basename('Foo\Bar\Baz');
// Baze()
e 函式會執行 PHP 的 htmlspecialchars 函式,且預設將 double_encode 選項設為 true:
echo e('<html>foo</html>');
// <html>foo</html>preg_replace_array()
preg_replace_array 函式使用陣列按順序替換字串中給定的模式:
$string = 'The event will take place between :start and :end';
$replaced = preg_replace_array('/:[a-z_]+/', ['8:30', '9:00'], $string);
// The event will take place between 8:30 and 9:00Str::after()
Str::after 方法回傳字串中給定值之後的所有內容。如果字串中不存在該值,則回傳整個字串:
use Illuminate\Support\Str;
$slice = Str::after('This is my name', 'This is');
// ' my name'Str::afterLast()
Str::afterLast 方法回傳字串中最後一次出現給定值之後的所有內容。如果字串中不存在該值,則回傳整個字串:
use Illuminate\Support\Str;
$slice = Str::afterLast('App\Http\Controllers\Controller', '\\');
// 'Controller'Str::apa()
Str::apa 方法根據 APA 指南 將給定字串轉換為標題大小寫 (Title Case):
use Illuminate\Support\Str;
$title = Str::apa('Creating A Project');
// 'Creating a Project'Str::ascii()
Str::ascii 方法會嘗試將字串音譯為 ASCII 值:
use Illuminate\Support\Str;
$slice = Str::ascii('û');
// 'u'Str::before()
Str::before 方法回傳字串中給定值之前的所有內容:
use Illuminate\Support\Str;
$slice = Str::before('This is my name', 'my name');
// 'This is 'Str::beforeLast()
Str::beforeLast 方法回傳字串中最後一次出現給定值之前的所有內容:
use Illuminate\Support\Str;
$slice = Str::beforeLast('This is my name', 'is');
// 'This 'Str::between()
Str::between 方法回傳兩個值之間的字串部分:
use Illuminate\Support\Str;
$slice = Str::between('This is my name', 'This', 'name');
// ' is my 'Str::betweenFirst()
Str::betweenFirst 方法回傳兩個值之間最小可能的字串部分:
use Illuminate\Support\Str;
$slice = Str::betweenFirst('[a] bc [d]', '[', ']');
// 'a'Str::camel()
Str::camel 方法將給定字串轉換為 camelCase:
use Illuminate\Support\Str;
$converted = Str::camel('foo_bar');
// 'fooBar'Str::charAt()
Str::charAt 方法回傳指定索引處的字元。如果索引超出範圍,則回傳 false:
use Illuminate\Support\Str;
$character = Str::charAt('This is my name.', 6);
// 's'Str::chopStart()
Str::chopStart 方法僅在給定值出現在字串開頭時,移除該值的第一次出現:
use Illuminate\Support\Str;
$url = Str::chopStart('https://laravel.com', 'https://');
// 'laravel.com'您也可以傳遞一個陣列作為第二個參數。如果字串以陣列中的任何一個值開頭,則該值將從字串中移除:
use Illuminate\Support\Str;
$url = Str::chopStart('http://laravel.com', ['https://', 'http://']);
// 'laravel.com'Str::chopEnd()
Str::chopEnd 方法僅在給定值出現在字串結尾時,移除該值的最後一次出現:
use Illuminate\Support\Str;
$url = Str::chopEnd('app/Models/Photograph.php', '.php');
// 'app/Models/Photograph'您也可以傳遞一個陣列作為第二個參數。如果字串以陣列中的任何一個值結尾,則該值將從字串中移除:
use Illuminate\Support\Str;
$url = Str::chopEnd('laravel.com/index.php', ['/index.html', '/index.php']);
// 'laravel.com'Str::contains()
Str::contains 方法判斷給定字串是否包含給定值。預設情況下,此方法區分大小寫:
use Illuminate\Support\Str;
$contains = Str::contains('This is my name', 'my');
// true您也可以傳遞一個值陣列,以判斷給定字串是否包含陣列中的任何一個值:
use Illuminate\Support\Str;
$contains = Str::contains('This is my name', ['my', 'foo']);
// true您可以透過將 ignoreCase 參數設定為 true 來停用區分大小寫:
use Illuminate\Support\Str;
$contains = Str::contains('This is my name', 'MY', ignoreCase: true);
// trueStr::containsAll()
Str::containsAll 方法判斷給定字串是否包含給定陣列中的所有值:
use Illuminate\Support\Str;
$containsAll = Str::containsAll('This is my name', ['my', 'name']);
// true您可以透過將 ignoreCase 參數設定為 true 來停用區分大小寫:
use Illuminate\Support\Str;
$containsAll = Str::containsAll('This is my name', ['MY', 'NAME'], ignoreCase: true);
// trueStr::doesntContain()
Str::doesntContain 方法判斷給定字串是否不包含給定值。預設情況下,此方法區分大小寫:
use Illuminate\Support\Str;
$doesntContain = Str::doesntContain('This is name', 'my');
// true您也可以傳遞一個值陣列,以判斷給定字串是否不包含陣列中的任何一個值:
use Illuminate\Support\Str;
$doesntContain = Str::doesntContain('This is name', ['my', 'framework']);
// true您可以透過將 ignoreCase 參數設定為 true 來停用區分大小寫:
use Illuminate\Support\Str;
$doesntContain = Str::doesntContain('This is name', 'MY', ignoreCase: true);
// trueStr::deduplicate()
Str::deduplicate 方法將字串中連續出現的特定字元替換為單一個該字元。預設情況下,此方法會去除重複的空格:
use Illuminate\Support\Str;
$result = Str::deduplicate('The Laravel Framework');
// The Laravel Framework您可以透過傳入第二個參數來指定要去除重複的特定字元:
use Illuminate\Support\Str;
$result = Str::deduplicate('The---Laravel---Framework', '-');
// The-Laravel-FrameworkStr::doesntEndWith()
Str::doesntEndWith 方法判斷給定的字串是否不以給定的值結尾:
use Illuminate\Support\Str;
$result = Str::doesntEndWith('This is my name', 'dog');
// true您也可以傳入一個陣列,來判斷給定的字串是否不以陣列中的任何一個值結尾:
use Illuminate\Support\Str;
$result = Str::doesntEndWith('This is my name', ['this', 'foo']);
// true
$result = Str::doesntEndWith('This is my name', ['name', 'foo']);
// falseStr::doesntStartWith()
Str::doesntStartWith 方法判斷給定的字串是否不以給定的值開頭:
use Illuminate\Support\Str;
$result = Str::doesntStartWith('This is my name', 'That');
// true如果傳入一個包含可能值的陣列,若字串不以陣列中的任何一個值開頭,doesntStartWith 方法將回傳 true:
$result = Str::doesntStartWith('This is my name', ['What', 'That', 'There']);
// trueStr::endsWith()
Str::endsWith 方法判斷給定的字串是否以給定的值結尾:
use Illuminate\Support\Str;
$result = Str::endsWith('This is my name', 'name');
// true您也可以傳入一個陣列,來判斷給定的字串是否以陣列中的任何一個值結尾:
use Illuminate\Support\Str;
$result = Str::endsWith('This is my name', ['name', 'foo']);
// true
$result = Str::endsWith('This is my name', ['this', 'foo']);
// falseStr::excerpt()
Str::excerpt 方法從給定的字串中提取一段摘要,該摘要與該字串中首次出現的短語相匹配:
use Illuminate\Support\Str;
$excerpt = Str::excerpt('This is my name', 'my', [
'radius' => 3
]);
// '...is my na...'radius 選項的預設值為 100,允許您定義在截斷字串兩側應顯示的字元數量。
此外,您可以使用 omission 選項來定義要前置和附加到截斷字串的字串:
use Illuminate\Support\Str;
$excerpt = Str::excerpt('This is my name', 'name', [
'radius' => 3,
'omission' => '(...) '
]);
// '(...) my name'Str::finish()
如果字串尚未以給定的值結尾,Str::finish 方法會將該值的一個執行個體添加到字串末尾:
use Illuminate\Support\Str;
$adjusted = Str::finish('this/string', '/');
// this/string/
$adjusted = Str::finish('this/string/', '/');
// this/string/Str::fromBase64()
Str::fromBase64 方法對給定的 Base64 字串進行解碼:
use Illuminate\Support\Str;
$decoded = Str::fromBase64('TGFyYXZlbA==');
// LaravelStr::headline()
Str::headline 方法會將以大小寫、連字號或底線分隔的字串轉換為以空格分隔的字串,且每個單字的首字母都大寫:
use Illuminate\Support\Str;
$headline = Str::headline('steve_jobs');
// Steve Jobs
$headline = Str::headline('EmailNotificationSent');
// Email Notification SentStr::inlineMarkdown()
Str::inlineMarkdown 方法使用 CommonMark 將 GitHub 風格的 Markdown 轉換為行內 HTML。然而,與 markdown 方法不同的是,它不會將產生的 HTML 包裝在區塊層級元素中:
use Illuminate\Support\Str;
$html = Str::inlineMarkdown('**Laravel**');
// <strong>Laravel</strong>Markdown 安全性
預設情況下,Markdown 支援原始 HTML,當與原始使用者輸入一起使用時,這將暴露跨網站指令碼 (XSS) 弱點。根據 CommonMark 安全文件,您可以使用 html_input 選項來跳脫或移除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的連結。如果您需要允許某些原始 HTML,您應該將編譯後的 Markdown 通過 HTML 清理器 (Purifier):
use Illuminate\Support\Str;
Str::inlineMarkdown('Inject: <script>alert("Hello XSS!");</script>', [
'html_input' => 'strip',
'allow_unsafe_links' => false,
]);
// Inject: alert("Hello XSS!");Str::is()
Str::is 方法判斷給定的字串是否符合給定的模式。星號可用作萬用字元:
use Illuminate\Support\Str;
$matches = Str::is('foo*', 'foobar');
// true
$matches = Str::is('baz*', 'foobar');
// false您可以透過將 ignoreCase 參數設定為 true 來停用區分大小寫:
use Illuminate\Support\Str;
$matches = Str::is('*.jpg', 'photo.JPG', ignoreCase: true);
// trueStr::isAscii()
Str::isAscii 方法判斷給定的字串是否為 7 位元的 ASCII:
use Illuminate\Support\Str;
$isAscii = Str::isAscii('Taylor');
// true
$isAscii = Str::isAscii('ü');
// falseStr::isJson()
Str::isJson 方法判斷給定的字串是否為有效的 JSON:
use Illuminate\Support\Str;
$result = Str::isJson('[1,2,3]');
// true
$result = Str::isJson('{"first": "John", "last": "Doe"}');
// true
$result = Str::isJson('{first: "John", last: "Doe"}');
// falseStr::isUrl()
Str::isUrl 方法判斷給定的字串是否為有效的 URL:
use Illuminate\Support\Str;
$isUrl = Str::isUrl('http://example.com');
// true
$isUrl = Str::isUrl('laravel');
// falseisUrl 方法認為多種協定都是有效的。然而,您可以透過向 isUrl 方法提供協定來指定應被視為有效的協定:
$isUrl = Str::isUrl('http://example.com', ['http', 'https']);Str::isUlid()
Str::isUlid 方法判斷給定的字串是否為有效的 ULID:
use Illuminate\Support\Str;
$isUlid = Str::isUlid('01gd6r360bp37zj17nxb55yv40');
// true
$isUlid = Str::isUlid('laravel');
// falseStr::isUuid()
Str::isUuid 方法判斷給定的字串是否為有效的 UUID:
use Illuminate\Support\Str;
$isUuid = Str::isUuid('a0a2a2d2-0b87-4a18-83f2-2529882be2de');
// true
$isUuid = Str::isUuid('laravel');
// false您也可以透過版本(1, 3, 4, 5, 6, 7 或 8)來驗證給定的 UUID 是否符合特定的 UUID 規範:
use Illuminate\Support\Str;
$isUuid = Str::isUuid('a0a2a2d2-0b87-4a18-83f2-2529882be2de', version: 4);
// true
$isUuid = Str::isUuid('a0a2a2d2-0b87-4a18-83f2-2529882be2de', version: 1);
// falseStr::kebab()
Str::kebab 方法將給定的字串轉換為 kebab-case:
use Illuminate\Support\Str;
$converted = Str::kebab('fooBar');
// foo-barStr::lcfirst()
Str::lcfirst 方法將給定字串的第一個字元轉換為小寫後回傳:
use Illuminate\Support\Str;
$string = Str::lcfirst('Foo Bar');
// foo BarStr::length()
Str::length 方法回傳給定字串的長度:
use Illuminate\Support\Str;
$length = Str::length('Laravel');
// 7Str::limit()
Str::limit 方法將給定字串截斷為指定的長度:
use Illuminate\Support\Str;
$truncated = Str::limit('The quick brown fox jumps over the lazy dog', 20);
// The quick brown fox...您可以將第三個參數傳遞給該方法,以更改將附加到截斷字串末尾的字串:
$truncated = Str::limit('The quick brown fox jumps over the lazy dog', 20, ' (...)');
// The quick brown fox (...)如果您想在截斷字串時保留完整的單字,可以使用 preserveWords 參數。當此參數為 true 時,字串將在最近的完整單字邊界處截斷:
$truncated = Str::limit('The quick brown fox', 12, preserveWords: true);
// The quick...Str::lower()
Str::lower 方法將給定字串轉換為小寫:
use Illuminate\Support\Str;
$converted = Str::lower('LARAVEL');
// laravelStr::markdown()
Str::markdown 方法使用 CommonMark 將 GitHub 風格的 Markdown 轉換為 HTML:
use Illuminate\Support\Str;
$html = Str::markdown('# Laravel');
// <h1>Laravel</h1>
$html = Str::markdown('# Taylor <b>Otwell</b>', [
'html_input' => 'strip',
]);
// <h1>Taylor Otwell</h1>Markdown 安全性
預設情況下,Markdown 支援原始 HTML,當與原始使用者輸入一起使用時,這會暴露跨網站指令碼 (XSS) 漏洞。根據 CommonMark 安全性文件,您可以使用 html_input 選項來逸出或去除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的連結。如果您需要允許某些原始 HTML,您應該將編譯後的 Markdown 通過一個 HTML 淨化器 (HTML Purifier):
use Illuminate\Support\Str;
Str::markdown('Inject: <script>alert("Hello XSS!");</script>', [
'html_input' => 'strip',
'allow_unsafe_links' => false,
]);
// <p>Inject: alert("Hello XSS!");</p>Str::mask()
Str::mask 方法使用重複的字元遮蓋字串的一部分,可用於模糊化字串的片段,例如電子郵件地址和電話號碼:
use Illuminate\Support\Str;
$string = Str::mask('[email protected]', '*', 3);
// tay***************如果需要,您可以向 mask 方法提供一個負數作為第三個參數,這將指示該方法從距離字串末尾給定的距離處開始遮蓋:
$string = Str::mask('[email protected]', '*', -15, 3);
// tay***@example.comStr::match()
Str::match 方法將回傳符合給定正規表示式樣式的字串部分:
use Illuminate\Support\Str;
$result = Str::match('/bar/', 'foo bar');
// 'bar'
$result = Str::match('/foo (.*)/', 'foo bar');
// 'bar'Str::matchAll()
Str::matchAll 方法將回傳一個包含符合給定正規表示式樣式之字串部分的集合:
use Illuminate\Support\Str;
$result = Str::matchAll('/bar/', 'bar foo bar');
// collect(['bar', 'bar'])如果您在運算式中指定了比對群組,Laravel 將回傳第一個比對群組的所有符合結果集合:
use Illuminate\Support\Str;
$result = Str::matchAll('/f(\w*)/', 'bar fun bar fly');
// collect(['un', 'ly']);如果沒有找到任何符合項,則會回傳一個空集合。
Str::isMatch()
如果字串符合給定的正規表示式,Str::isMatch 方法將回傳 true:
use Illuminate\Support\Str;
$result = Str::isMatch('/foo (.*)/', 'foo bar');
// true
$result = Str::isMatch('/foo (.*)/', 'laravel');
// falseStr::orderedUuid()
Str::orderedUuid 方法生成一個「時間戳記優先」的 UUID,可以有效地儲存在建立索引的資料庫欄位中。使用此方法生成的每個 UUID 都將排在先前使用該方法生成的 UUID 之後:
use Illuminate\Support\Str;
return (string) Str::orderedUuid();Str::padBoth()
Str::padBoth 方法封裝了 PHP 的 str_pad 函式,使用另一個字串填充字串的兩側,直到最終字串達到所需的長度:
use Illuminate\Support\Str;
$padded = Str::padBoth('James', 10, '_');
// '__James___'
$padded = Str::padBoth('James', 10);
// ' James 'Str::padLeft()
Str::padLeft 方法封裝了 PHP 的 str_pad 函式,使用另一個字串填充字串的左側,直到最終字串達到所需的長度:
use Illuminate\Support\Str;
$padded = Str::padLeft('James', 10, '-=');
// '-=-=-James'
$padded = Str::padLeft('James', 10);
// ' James'Str::padRight()
Str::padRight 方法封裝了 PHP 的 str_pad 函式,使用另一個字串填充字串的右側,直到最終字串達到所需的長度:
use Illuminate\Support\Str;
$padded = Str::padRight('James', 10, '-');
// 'James-----'
$padded = Str::padRight('James', 10);
// 'James 'Str::password()
Str::password 方法可用於生成給定長度的安全隨機密碼。密碼將由字母、數字、符號和空格組合而成。預設情況下,密碼長度為 32 個字元:
use Illuminate\Support\Str;
$password = Str::password();
// 'EbJo2vE-AS:U,$%_gkrV4n,q~1xy/-_4'
$password = Str::password(12);
// 'qwuar>#V|i]N'Str::plural()
Str::plural 方法將單數形式的單字字串轉換為其複數形式。此函式支援 任何 Laravel 複數化器支援的語言:
use Illuminate\Support\Str;
$plural = Str::plural('car');
// cars
$plural = Str::plural('child');
// children您可以提供一個整數作為函式的第二個參數,以取得字串的單數或複數形式:
use Illuminate\Support\Str;
$plural = Str::plural('child', 2);
// children
$singular = Str::plural('child', 1);
// child可以提供 prependCount 參數,以在複數化字串前加上格式化後的 $count:
use Illuminate\Support\Str;
$label = Str::plural('car', 1000, prependCount: true);
// 1,000 carsStr::pluralStudly()
Str::pluralStudly 方法將以 Studly Case (大駝峰) 格式化的單數單字字串轉換為複數形式。此函式支援 Laravel 複數器支援的任何語言:
use Illuminate\Support\Str;
$plural = Str::pluralStudly('VerifiedHuman');
// VerifiedHumans
$plural = Str::pluralStudly('UserFeedback');
// UserFeedback您可以提供一個整數作為函式的第二個參數,以取得字串的單數或複數形式:
use Illuminate\Support\Str;
$plural = Str::pluralStudly('VerifiedHuman', 2);
// VerifiedHumans
$singular = Str::pluralStudly('VerifiedHuman', 1);
// VerifiedHumanStr::position()
Str::position 方法回傳子字串在字串中第一次出現的位置。如果子字串不存在於給定的字串中,則回傳 false:
use Illuminate\Support\Str;
$position = Str::position('Hello, World!', 'Hello');
// 0
$position = Str::position('Hello, World!', 'W');
// 7Str::random()
Str::random 方法生成指定長度的隨機字串。此函式使用 PHP 的 random_bytes 函式:
use Illuminate\Support\Str;
$random = Str::random(40);在測試期間,「模擬 (fake)」Str::random 方法回傳的值可能會很有用。若要達成此目的,您可以使用 createRandomStringsUsing 方法:
Str::createRandomStringsUsing(function () {
return 'fake-random-string';
});若要指示 random 方法恢復正常生成隨機字串,您可以呼叫 createRandomStringsNormally 方法:
Str::createRandomStringsNormally();Str::remove()
Str::remove 方法從字串中移除給定的值或值陣列:
use Illuminate\Support\Str;
$string = 'Peter Piper picked a peck of pickled peppers.';
$removed = Str::remove('e', $string);
// Ptr Pipr pickd a pck of pickld ppprs.您也可以將 false 作為 remove 方法的第三個參數傳遞,以在移除字串時忽略大小寫。
Str::repeat()
Str::repeat 方法重複給定的字串:
use Illuminate\Support\Str;
$string = 'a';
$repeat = Str::repeat($string, 5);
// aaaaaStr::replace()
Str::replace 方法取代字串中指定的字串:
use Illuminate\Support\Str;
$string = 'Laravel 11.x';
$replaced = Str::replace('11.x', '12.x', $string);
// Laravel 12.xreplace 方法也接受一個 caseSensitive 參數。預設情況下,replace 方法是區分大小寫的:
$replaced = Str::replace(
'php',
'Laravel',
'PHP Framework for Web Artisans',
caseSensitive: false
);
// Laravel Framework for Web ArtisansStr::replaceArray()
Str::replaceArray 方法使用陣列依序取代字串中給定的值:
use Illuminate\Support\Str;
$string = 'The event will take place between ? and ?';
$replaced = Str::replaceArray('?', ['8:30', '9:00'], $string);
// The event will take place between 8:30 and 9:00Str::replaceFirst()
Str::replaceFirst 方法取代字串中第一次出現的給定值:
use Illuminate\Support\Str;
$replaced = Str::replaceFirst('the', 'a', 'the quick brown fox jumps over the lazy dog');
// a quick brown fox jumps over the lazy dogStr::replaceLast()
Str::replaceLast 方法取代字串中最後一次出現的給定值:
use Illuminate\Support\Str;
$replaced = Str::replaceLast('the', 'a', 'the quick brown fox jumps over the lazy dog');
// the quick brown fox jumps over a lazy dogStr::replaceMatches()
Str::replaceMatches 方法使用給定的取代字串,取代字串中所有符合模式的部分:
use Illuminate\Support\Str;
$replaced = Str::replaceMatches(
pattern: '/[^A-Za-z0-9]++/',
replace: '',
subject: '(+1) 501-555-1000'
)
// '15015551000'replaceMatches 方法也接受一個閉包 (Closure),該閉包將針對符合給定模式的每個部分被呼叫,讓您能夠在閉包內執行取代邏輯並回傳取代後的值:
use Illuminate\Support\Str;
$replaced = Str::replaceMatches('/\d/', function (array $matches) {
return '['.$matches[0].']';
}, '123');
// '[1][2][3]'Str::replaceStart()
Str::replaceStart 方法僅在給定值出現在字串開頭時,才取代第一次出現的該值:
use Illuminate\Support\Str;
$replaced = Str::replaceStart('Hello', 'Laravel', 'Hello World');
// Laravel World
$replaced = Str::replaceStart('World', 'Laravel', 'Hello World');
// Hello WorldStr::replaceEnd()
Str::replaceEnd 方法僅在給定值出現在字串結尾時,才取代最後一次出現的該值:
use Illuminate\Support\Str;
$replaced = Str::replaceEnd('World', 'Laravel', 'Hello World');
// Hello Laravel
$replaced = Str::replaceEnd('Hello', 'Laravel', 'Hello World');
// Hello WorldStr::reverse()
Str::reverse 方法反轉給定的字串:
use Illuminate\Support\Str;
$reversed = Str::reverse('Hello World');
// dlroW olleHStr::singular()
Str::singular 方法將字串轉換為單數形式。此函式支援 Laravel 複數器支援的任何語言:
use Illuminate\Support\Str;
$singular = Str::singular('cars');
// car
$singular = Str::singular('children');
// childStr::slug()
Str::slug 方法從給定的字串生成網址友善的「縮略名 (slug)」:
use Illuminate\Support\Str;
$slug = Str::slug('Laravel 5 Framework', '-');
// laravel-5-frameworkStr::snake()
Str::snake 方法將給定的字串轉換為 snake_case:
use Illuminate\Support\Str;
$converted = Str::snake('fooBar');
// foo_bar
$converted = Str::snake('fooBar', '-');
// foo-barStr::squish()
Str::squish 方法移除字串中所有多餘的空白字元,包括單字之間多餘的空白:
use Illuminate\Support\Str;
$string = Str::squish(' laravel framework ');
// laravel frameworkStr::start()
Str::start 方法如果字串尚未以給定值開頭,則在字串開頭加上單次出現的該值:
use Illuminate\Support\Str;
$adjusted = Str::start('this/string', '/');
// /this/string
$adjusted = Str::start('/this/string', '/');
// /this/stringStr::startsWith()
Str::startsWith 方法用於判斷指定的字串是否以指定的數值開頭:
use Illuminate\Support\Str;
$result = Str::startsWith('This is my name', 'This');
// true如果傳遞了一個包含多個可能數值的陣列,則當該字串以陣列中任何一個數值開頭時,startsWith 方法都會回傳 true:
$result = Str::startsWith('This is my name', ['This', 'That', 'There']);
// trueStr::studly()
Str::studly 方法將指定的字串轉換為 StudlyCase:
use Illuminate\Support\Str;
$converted = Str::studly('foo_bar');
// FooBarStr::substr()
Str::substr 方法回傳由開始 (start) 與長度 (length) 參數指定的字串部分:
use Illuminate\Support\Str;
$converted = Str::substr('The Laravel Framework', 4, 7);
// LaravelStr::substrCount()
Str::substrCount 方法回傳指定數值在指定字串中出現的次數:
use Illuminate\Support\Str;
$count = Str::substrCount('If you like ice cream, you will like snow cones.', 'like');
// 2Str::substrReplace()
Str::substrReplace 方法會替換字串中特定部分的正文,從第三個參數指定的位置開始,並替換第四個參數指定的字元數量。若將 0 傳遞給該方法的第四個參數,則會在指定位置插入字串,而不替換字串中任何現有的字元:
use Illuminate\Support\Str;
$result = Str::substrReplace('1300', ':', 2);
// 13:
$result = Str::substrReplace('1300', ':', 2, 0);
// 13:00Str::swap()
Str::swap 方法使用 PHP 的 strtr 函式替換指定字串中的多個數值:
use Illuminate\Support\Str;
$string = Str::swap([
'Tacos' => 'Burritos',
'great' => 'fantastic',
], 'Tacos are great!');
// Burritos are fantastic!Str::take()
Str::take 方法從字串開頭回傳指定數量的字元:
use Illuminate\Support\Str;
$taken = Str::take('Build something amazing!', 5);
// BuildStr::title()
Str::title 方法將指定的字串轉換為 Title Case (標題大小寫):
use Illuminate\Support\Str;
$converted = Str::title('a nice title uses the correct case');
// A Nice Title Uses The Correct CaseStr::toBase64()
Str::toBase64 方法將指定的字串轉換為 Base64 編碼:
use Illuminate\Support\Str;
$base64 = Str::toBase64('Laravel');
// TGFyYXZlbA==Str::transliterate()
Str::transliterate 方法將嘗試把指定的字串轉換為最接近的 ASCII 表示形式:
use Illuminate\Support\Str;
$email = Str::transliterate('ⓣⓔⓢⓣ@ⓛⓐⓡⓐⓥⓔⓛ.ⓒⓞⓜ');
// '[email protected]'Str::trim()
Str::trim 方法從指定字串的開頭和結尾移除空白字元 (或其他字元)。與 PHP 原生的 trim 函式不同,Str::trim 方法還會移除 Unicode 的空白字元:
use Illuminate\Support\Str;
$string = Str::trim(' foo bar ');
// 'foo bar'Str::ltrim()
Str::ltrim 方法從指定字串的開頭移除空白字元 (或其他字元)。與 PHP 原生的 ltrim 函式不同,Str::ltrim 方法還會移除 Unicode 的空白字元:
use Illuminate\Support\Str;
$string = Str::ltrim(' foo bar ');
// 'foo bar 'Str::rtrim()
Str::rtrim 方法從指定字串的結尾移除空白字元 (或其他字元)。與 PHP 原生的 rtrim 函式不同,Str::rtrim 方法還會移除 Unicode 的空白字元:
use Illuminate\Support\Str;
$string = Str::rtrim(' foo bar ');
// ' foo bar'Str::ucfirst()
Str::ucfirst 方法回傳將第一個字元轉為大寫後的字串:
use Illuminate\Support\Str;
$string = Str::ucfirst('foo bar');
// Foo barStr::ucsplit()
Str::ucsplit 方法根據大寫字元將指定字串分割為陣列:
use Illuminate\Support\Str;
$segments = Str::ucsplit('FooBar');
// [0 => 'Foo', 1 => 'Bar']Str::ucwords()
Str::ucwords 方法將指定字串中每個單字的第一個字元轉換為大寫:
use Illuminate\Support\Str;
$string = Str::ucwords('laravel framework');
// Laravel FrameworkStr::upper()
Str::upper 方法將指定的字串轉換為全大寫:
use Illuminate\Support\Str;
$string = Str::upper('laravel');
// LARAVELStr::ulid()
Str::ulid 方法生成一個 ULID,這是一種緊湊且按時間排序的唯一識別碼:
use Illuminate\Support\Str;
return (string) Str::ulid();
// 01gd6r360bp37zj17nxb55yv40如果您想要取得一個代表特定 ULID 建立日期與時間的 Illuminate\Support\Carbon 日期實例,可以使用 Laravel 的 Carbon 整合功能所提供的 createFromId 方法:
use Illuminate\Support\Carbon;
use Illuminate\Support\Str;
$date = Carbon::createFromId((string) Str::ulid());在測試期間,模擬 Str::ulid 方法回傳的數值可能很有用。要實現這一點,您可以使用 createUlidsUsing 方法:
use Symfony\Component\Uid\Ulid;
Str::createUlidsUsing(function () {
return new Ulid('01HRDBNHHCKNW2AK4Z29SN82T9');
});若要指示 ulid 方法恢復正常生成 ULID,可以呼叫 createUlidsNormally 方法:
Str::createUlidsNormally();Str::unwrap()
Str::unwrap 方法從指定字串的開頭和結尾移除指定的字串:
use Illuminate\Support\Str;
Str::unwrap('-Laravel-', '-');
// Laravel
Str::unwrap('{framework: "Laravel"}', '{', '}');
// framework: "Laravel"Str::uuid()
Str::uuid 方法生成一個 UUID (版本 4):
use Illuminate\Support\Str;
return (string) Str::uuid();在測試期間,模擬 Str::uuid 方法回傳的數值可能很有用。要實現這一點,您可以使用 createUuidsUsing 方法:
use Ramsey\Uuid\Uuid;
Str::createUuidsUsing(function () {
return Uuid::fromString('eadbfeac-5258-45c2-bab7-ccb9b5ef74f9');
});若要指示 uuid 方法恢復正常生成 UUID,可以呼叫 createUuidsNormally 方法:
Str::createUuidsNormally();Str::uuid7()
Str::uuid7 方法生成一個 UUID (版本 7):
use Illuminate\Support\Str;
return (string) Str::uuid7();可以傳遞一個 DateTimeInterface 作為選填參數,用於生成有序的 UUID:
return (string) Str::uuid7(time: now());Str::wordCount()
Str::wordCount 方法回傳字串包含的單字數量:
use Illuminate\Support\Str;
Str::wordCount('Hello, world!'); // 2Str::wordWrap()
Str::wordWrap 方法將字串換行至指定的字元數:
use Illuminate\Support\Str;
$text = "The quick brown fox jumped over the lazy dog."
Str::wordWrap($text, characters: 20, break: "<br />\n");
/*
The quick brown fox<br />
jumped over the lazy<br />
dog.
*/Str::words()
Str::words 方法限制字串中的單字數量。可以透過第三個參數傳入額外的字串,以指定要附加到截斷字串末尾的內容:
use Illuminate\Support\Str;
return Str::words('Perfectly balanced, as all things should be.', 3, ' >>>');
// Perfectly balanced, as >>>Str::wrap()
Str::wrap 方法使用額外的字串或一對字串來包覆給定的字串:
use Illuminate\Support\Str;
Str::wrap('Laravel', '"');
// "Laravel"
Str::wrap('is', before: 'This ', after: ' Laravel!');
// This is Laravel!str()
str 函式為給定的字串回傳一個新的 Illuminate\Support\Stringable 實例。此函式等同於 Str::of 方法:
$string = str('Taylor')->append(' Otwell');
// 'Taylor Otwell'若未提供參數給 str 函式,該函式則會回傳 Illuminate\Support\Str 的實例:
$snake = str()->snake('FooBar');
// 'foo_bar'trans()
trans 函式使用您的語系檔來翻譯給定的翻譯鍵:
echo trans('messages.welcome');若指定的翻譯鍵不存在,trans 函式將回傳該鍵名。因此,延續上面的範例,若翻譯鍵不存在,trans 函式將回傳 messages.welcome。
trans_choice()
trans_choice 函式翻譯給定的翻譯鍵並處理複數變化(Inflection):
echo trans_choice('messages.notifications', $unreadCount);若指定的翻譯鍵不存在,trans_choice 函式將回傳該鍵名。因此,延續上面的範例,若翻譯鍵不存在,trans_choice 函式將回傳 messages.notifications。
流暢字串 (Fluent Strings)
流暢字串提供了一個更流暢、物件導向的介面來處理字串值,與傳統的字串操作相比,它允許您使用更具可讀性的語法將多個字串操作串接在一起。
after
after 方法返回字串中給定值之後的所有內容。如果字串中不存在該值,則會返回整個字串:
use Illuminate\Support\Str;
$slice = Str::of('This is my name')->after('This is');
// ' my name'afterLast
afterLast 方法返回字串中最後一次出現給定值之後的所有內容。如果字串中不存在該值,則會返回整個字串:
use Illuminate\Support\Str;
$slice = Str::of('App\Http\Controllers\Controller')->afterLast('\\');
// 'Controller'apa
apa 方法根據 APA 指南 (APA guidelines) 將給定字串轉換為標題大小寫:
use Illuminate\Support\Str;
$converted = Str::of('a nice title uses the correct case')->apa();
// A Nice Title Uses the Correct Caseappend
append 方法將給定值附加到字串末尾:
use Illuminate\Support\Str;
$string = Str::of('Taylor')->append(' Otwell');
// 'Taylor Otwell'ascii
ascii 方法會嘗試將字串轉換為 ASCII 值:
use Illuminate\Support\Str;
$string = Str::of('ü')->ascii();
// 'u'basename
basename 方法會返回給定字串中路徑的最後一個名稱部分:
use Illuminate\Support\Str;
$string = Str::of('/foo/bar/baz')->basename();
// 'baz'如果需要,您可以提供一個「副檔名」,它將從返回的名稱部分中被移除:
use Illuminate\Support\Str;
$string = Str::of('/foo/bar/baz.jpg')->basename('.jpg');
// 'baz'before
before 方法返回字串中給定值之前的所有內容:
use Illuminate\Support\Str;
$slice = Str::of('This is my name')->before('my name');
// 'This is 'beforeLast
beforeLast 方法返回字串中最後一次出現給定值之前的所有內容:
use Illuminate\Support\Str;
$slice = Str::of('This is my name')->beforeLast('is');
// 'This 'between
between 方法返回兩個值之間的字串部分:
use Illuminate\Support\Str;
$converted = Str::of('This is my name')->between('This', 'name');
// ' is my 'betweenFirst
betweenFirst 方法返回兩個值之間最小可能的字串部分:
use Illuminate\Support\Str;
$converted = Str::of('[a] bc [d]')->betweenFirst('[', ']');
// 'a'camel
camel 方法將給定字串轉換為 camelCase (小駝峰式命名):
use Illuminate\Support\Str;
$converted = Str::of('foo_bar')->camel();
// 'fooBar'charAt
charAt 方法返回指定索引處的字元。如果索引超出範圍,則返回 false:
use Illuminate\Support\Str;
$character = Str::of('This is my name.')->charAt(6);
// 's'classBasename
classBasename 方法返回給定類別的名稱,並移除該類別的命名空間:
use Illuminate\Support\Str;
$class = Str::of('Foo\Bar\Baz')->classBasename();
// 'Baz'chopStart
chopStart 方法僅當給定值出現在字串開頭時,才移除該值的第一次出現:
use Illuminate\Support\Str;
$url = Str::of('https://laravel.com')->chopStart('https://');
// 'laravel.com'您也可以傳遞一個陣列。如果字串以陣列中的任何一個值開頭,那麼該值將從字串中被移除:
use Illuminate\Support\Str;
$url = Str::of('http://laravel.com')->chopStart(['https://', 'http://']);
// 'laravel.com'chopEnd
chopEnd 方法僅當給定值出現在字串結尾時,才移除該值的最後一次出現:
use Illuminate\Support\Str;
$url = Str::of('https://laravel.com')->chopEnd('.com');
// 'https://laravel'您也可以傳遞一個陣列。如果字串以陣列中的任何一個值結尾,那麼該值將從字串中被移除:
use Illuminate\Support\Str;
$url = Str::of('http://laravel.com')->chopEnd(['.com', '.io']);
// 'http://laravel'contains
contains 方法判斷給定字串是否包含給定值。預設情況下,此方法區分大小寫:
use Illuminate\Support\Str;
$contains = Str::of('This is my name')->contains('my');
// true您也可以傳遞一個陣列值來判斷給定字串是否包含陣列中的任何一個值:
use Illuminate\Support\Str;
$contains = Str::of('This is my name')->contains(['my', 'foo']);
// true您可以藉由將 ignoreCase 參數設定為 true 來停用大小寫區分:
use Illuminate\Support\Str;
$contains = Str::of('This is my name')->contains('MY', ignoreCase: true);
// truecontainsAll
containsAll 方法判斷給定字串是否包含給定陣列中的所有值:
use Illuminate\Support\Str;
$containsAll = Str::of('This is my name')->containsAll(['my', 'name']);
// true您可以藉由將 ignoreCase 參數設定為 true 來停用大小寫區分:
use Illuminate\Support\Str;
$containsAll = Str::of('This is my name')->containsAll(['MY', 'NAME'], ignoreCase: true);
// truedecrypt
decrypt 方法解密 (decrypts)加密過的字串:
use Illuminate\Support\Str;
$decrypted = $encrypted->decrypt();
// 'secret'關於 decrypt 的反向操作,請參閱 encrypt 方法。
deduplicate
deduplicate 方法將給定字串中連續出現的同一個字元替換為該字元的單個實例。預設情況下,該方法會移除連續的空格:
use Illuminate\Support\Str;
$result = Str::of('The Laravel Framework')->deduplicate();
// The Laravel Framework您可以藉由將另一個字元作為第二個參數傳遞給該方法,來指定要移除重複的不同字元:
use Illuminate\Support\Str;
$result = Str::of('The---Laravel---Framework')->deduplicate('-');
// The-Laravel-Frameworkdirname
dirname 方法返回給定字串的父目錄部分:
use Illuminate\Support\Str;
$string = Str::of('/foo/bar/baz')->dirname();
// '/foo/bar'如有需要,您可以指定要從字串中修剪多少層目錄:
use Illuminate\Support\Str;
$string = Str::of('/foo/bar/baz')->dirname(2);
// '/foo'doesntContain()
doesntContain 方法判斷指定的字串是否不包含給定的值。此方法與 contains 方法相反。預設情況下,此方法區分大小寫:
use Illuminate\Support\Str;
$doesntContain = Str::of('This is name')->doesntContain('my');
// true您也可以傳入一個陣列,以判斷指定的字串是否不包含陣列中的任何值:
use Illuminate\Support\Str;
$doesntContain = Str::of('This is name')->doesntContain(['my', 'framework']);
// true您可以透過將 ignoreCase 參數設為 true 來停用大小寫區分:
use Illuminate\Support\Str;
$doesntContain = Str::of('This is my name')->doesntContain('MY', ignoreCase: true);
// falsedoesntEndWith
doesntEndWith 方法判斷指定的字串是否不以給定的值結尾:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->doesntEndWith('dog');
// true您也可以傳入一個陣列,以判斷指定的字串是否不以陣列中的任何值結尾:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->doesntEndWith(['this', 'foo']);
// true
$result = Str::of('This is my name')->doesntEndWith(['name', 'foo']);
// falsedoesntStartWith
doesntStartWith 方法判斷指定的字串是否不以給定的值開頭:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->doesntStartWith('That');
// true您也可以傳入一個陣列,以判斷指定的字串是否不以陣列中的任何值開頭:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->doesntStartWith(['What', 'That', 'There']);
// trueencrypt
encrypt 方法將字串加密:
use Illuminate\Support\Str;
$encrypted = Str::of('secret')->encrypt();關於 encrypt 的相反操作,請參閱 decrypt 方法。
endsWith
endsWith 方法判斷指定的字串是否以給定的值結尾:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->endsWith('name');
// true您也可以傳入一個陣列,以判斷指定的字串是否以陣列中的任何值結尾:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->endsWith(['name', 'foo']);
// true
$result = Str::of('This is my name')->endsWith(['this', 'foo']);
// falseexactly
exactly 方法判斷指定的字串是否與另一個字串完全符合:
use Illuminate\Support\Str;
$result = Str::of('Laravel')->exactly('Laravel');
// trueexcerpt
excerpt 方法從字串中擷取一段摘要,該摘要符合字串中第一次出現的片語:
use Illuminate\Support\Str;
$excerpt = Str::of('This is my name')->excerpt('my', [
'radius' => 3
]);
// '...is my na...'radius 選項預設為 100,允許您定義應出現在截斷字串兩側的字元數。
此外,您可以使用 omission 選項來更改將附加在截斷字串開頭與結尾的字串:
use Illuminate\Support\Str;
$excerpt = Str::of('This is my name')->excerpt('name', [
'radius' => 3,
'omission' => '(...) '
]);
// '(...) my name'explode
explode 方法使用指定的分隔符分割字串,並回傳一個包含分割後各個部分的集合:
use Illuminate\Support\Str;
$collection = Str::of('foo bar baz')->explode(' ');
// collect(['foo', 'bar', 'baz'])finish
finish 方法在字串結尾加上一個指定的值(如果該字串尚未以該值結尾):
use Illuminate\Support\Str;
$adjusted = Str::of('this/string')->finish('/');
// this/string/
$adjusted = Str::of('this/string/')->finish('/');
// this/string/fromBase64
fromBase64 方法解碼指定的 Base64 字串:
use Illuminate\Support\Str;
$decoded = Str::of('TGFyYXZlbA==')->fromBase64();
// Laravelhash
hash 方法使用指定的演算法對字串進行雜湊:
use Illuminate\Support\Str;
$hashed = Str::of('secret')->hash(algorithm: 'sha256');
// '2bb80d537b1da3e38bd30361aa855686bde0eacd7162fef6a25fe97bf527a25b'headline
headline 方法會將以大小寫、連字號或底線分隔的字串轉換為以空格分隔的字串,且每個單字的首字母都會大寫:
use Illuminate\Support\Str;
$headline = Str::of('taylor_otwell')->headline();
// Taylor Otwell
$headline = Str::of('EmailNotificationSent')->headline();
// Email Notification SentinlineMarkdown
inlineMarkdown 方法使用 CommonMark 將 GitHub 風格的 Markdown 轉換為行內 HTML。然而,與 markdown 方法不同的是,它不會將所有產生的 HTML 包裝在區塊級元素中:
use Illuminate\Support\Str;
$html = Str::of('**Laravel**')->inlineMarkdown();
// <strong>Laravel</strong>Markdown 安全性
預設情況下,Markdown 支援原始 HTML,當與原始使用者輸入一起使用時,這將暴露跨網站指令碼 (XSS) 漏洞。根據 CommonMark 安全性文件,您可以使用 html_input 選項來逸出或移除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的連結。如果您需要允許某些原始 HTML,您應該將編譯後的 Markdown 通過 HTML 清理器:
use Illuminate\Support\Str;
Str::of('Inject: <script>alert("Hello XSS!");</script>')->inlineMarkdown([
'html_input' => 'strip',
'allow_unsafe_links' => false,
]);
// Inject: alert("Hello XSS!");is
is 方法判斷指定的字串是否符合指定的模式。星號可以用作萬用字元。
use Illuminate\Support\Str;
$matches = Str::of('foobar')->is('foo*');
// true
$matches = Str::of('foobar')->is('baz*');
// falseisAscii
isAscii 方法判斷指定的字串是否為 ASCII 字串:
use Illuminate\Support\Str;
$result = Str::of('Taylor')->isAscii();
// true
$result = Str::of('ü')->isAscii();
// falseisEmpty
isEmpty 方法判斷指定的字串是否為空:
use Illuminate\Support\Str;
$result = Str::of(' ')->trim()->isEmpty();
// true
$result = Str::of('Laravel')->trim()->isEmpty();
// falseisNotEmpty
isNotEmpty 方法判斷指定的字串是否不為空:
use Illuminate\Support\Str;
$result = Str::of(' ')->trim()->isNotEmpty();
// false
$result = Str::of('Laravel')->trim()->isNotEmpty();
// trueisJson
isJson 方法判斷指定的字串是否為有效的 JSON:
use Illuminate\Support\Str;
$result = Str::of('[1,2,3]')->isJson();
// true
$result = Str::of('{"first": "John", "last": "Doe"}')->isJson();
// true
$result = Str::of('{first: "John", last: "Doe"}')->isJson();
// falseisUlid
isUlid 方法判斷指定的字串是否為 ULID:
use Illuminate\Support\Str;
$result = Str::of('01gd6r360bp37zj17nxb55yv40')->isUlid();
// true
$result = Str::of('Taylor')->isUlid();
// falseisUrl
isUrl 方法判斷指定的字串是否為 URL:
use Illuminate\Support\Str;
$result = Str::of('http://example.com')->isUrl();
// true
$result = Str::of('Taylor')->isUrl();
// falseisUrl 方法將多種協定視為有效。不過,您可以透過傳入陣列給 isUrl 方法來指定應被視為有效的協定:
$result = Str::of('http://example.com')->isUrl(['http', 'https']);isUuid
isUuid 方法判斷指定的字串是否為 UUID:
use Illuminate\Support\Str;
$result = Str::of('5ace9ab9-e9cf-4ec6-a19d-5881212a452c')->isUuid();
// true
$result = Str::of('Taylor')->isUuid();
// false您也可以驗證指定的 UUID 是否符合特定版本的 UUID 規範 (1, 3, 4, 5, 6, 7 或 8):
use Illuminate\Support\Str;
$isUuid = Str::of('a0a2a2d2-0b87-4a18-83f2-2529882be2de')->isUuid(version: 4);
// true
$isUuid = Str::of('a0a2a2d2-0b87-4a18-83f2-2529882be2de')->isUuid(version: 1);
// falsekebab
kebab 方法將指定的字串轉換為 kebab-case:
use Illuminate\Support\Str;
$converted = Str::of('fooBar')->kebab();
// foo-barlcfirst
lcfirst 方法將指定字串的第一個字元轉為小寫後回傳:
use Illuminate\Support\Str;
$string = Str::of('Foo Bar')->lcfirst();
// foo Barlength
length 方法回傳指定字串的長度:
use Illuminate\Support\Str;
$length = Str::of('Laravel')->length();
// 7limit
limit 方法將指定的字串截斷為指定的長度:
use Illuminate\Support\Str;
$truncated = Str::of('The quick brown fox jumps over the lazy dog')->limit(20);
// The quick brown fox...您也可以傳入第二個參數來更改附加到截斷字串末尾的字串:
$truncated = Str::of('The quick brown fox jumps over the lazy dog')->limit(20, ' (...)');
// The quick brown fox (...)如果您想在截斷字串時保留完整的單字,可以使用 preserveWords 參數。當此參數為 true 時,字串將在最近的完整單字邊界處截斷:
$truncated = Str::of('The quick brown fox')->limit(12, preserveWords: true);
// The quick...lower
lower 方法將指定的字串轉換為小寫:
use Illuminate\Support\Str;
$result = Str::of('LARAVEL')->lower();
// 'laravel'markdown
markdown 方法將 GitHub 風格的 Markdown 轉換為 HTML:
use Illuminate\Support\Str;
$html = Str::of('# Laravel')->markdown();
// <h1>Laravel</h1>
$html = Str::of('# Taylor <b>Otwell</b>')->markdown([
'html_input' => 'strip',
]);
// <h1>Taylor Otwell</h1>Markdown 安全性
預設情況下,Markdown 支援原始 HTML,當與原始使用者輸入一起使用時,這會暴露跨站腳本攻擊 (XSS) 的漏洞。根據 CommonMark 安全性文件,您可以使用 html_input 選項來跳脫或移除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的連結。如果您需要允許一些原始 HTML,則應該將編譯後的 Markdown 通過 HTML 清潔器 (Purifier):
use Illuminate\Support\Str;
Str::of('Inject: <script>alert("Hello XSS!");</script>')->markdown([
'html_input' => 'strip',
'allow_unsafe_links' => false,
]);
// <p>Inject: alert("Hello XSS!");</p>mask
mask 方法使用重複的字元遮蓋字串的一部分,可用於隱藏字串的片段,例如電子郵件地址和電話號碼:
use Illuminate\Support\Str;
$string = Str::of('[email protected]')->mask('*', 3);
// tay***************如果需要,您可以為 mask 方法提供負數作為第三或第四個參數,這將指示該方法從距離字串末尾指定的距離開始遮蓋:
$string = Str::of('[email protected]')->mask('*', -15, 3);
// tay***@example.com
$string = Str::of('[email protected]')->mask('*', 4, -4);
// tayl**********.commatch
match 方法將回傳字串中符合指定正規表示式模式的部分:
use Illuminate\Support\Str;
$result = Str::of('foo bar')->match('/bar/');
// 'bar'
$result = Str::of('foo bar')->match('/foo (.*)/');
// 'bar'matchAll
matchAll 方法將回傳一個包含字串中符合指定正規表示式模式的所有部分的集合:
use Illuminate\Support\Str;
$result = Str::of('bar foo bar')->matchAll('/bar/');
// collect(['bar', 'bar'])如果您在運算式中指定了比對群組,Laravel 將回傳第一個比對群組的比對結果集合:
use Illuminate\Support\Str;
$result = Str::of('bar fun bar fly')->matchAll('/f(\w*)/');
// collect(['un', 'ly']);如果未找到匹配項,則回傳一個空集合。
isMatch
如果在字串符合指定的正規表示式時,isMatch 方法將回傳 true:
use Illuminate\Support\Str;
$result = Str::of('foo bar')->isMatch('/foo (.*)/');
// true
$result = Str::of('laravel')->isMatch('/foo (.*)/');
// falsenewLine
newLine 方法在字串末尾附加一個「換行」字元:
use Illuminate\Support\Str;
$padded = Str::of('Laravel')->newLine()->append('Framework');
// 'Laravel
// Framework'padBoth
padBoth 方法封裝了 PHP 的 str_pad 函式,在字串的兩側填充另一個字串,直到最終字串達到所需的長度:
use Illuminate\Support\Str;
$padded = Str::of('James')->padBoth(10, '_');
// '__James___'
$padded = Str::of('James')->padBoth(10);
// ' James 'padLeft
padLeft 方法封裝了 PHP 的 str_pad 函式,在字串的左側填充另一個字串,直到最終字串達到所需的長度:
use Illuminate\Support\Str;
$padded = Str::of('James')->padLeft(10, '-=');
// '-=-=-James'
$padded = Str::of('James')->padLeft(10);
// ' James'padRight
padRight 方法封裝了 PHP 的 str_pad 函式,在字串的右側填充另一個字串,直到最終字串達到所需的長度:
use Illuminate\Support\Str;
$padded = Str::of('James')->padRight(10, '-');
// 'James-----'
$padded = Str::of('James')->padRight(10);
// 'James 'pipe
pipe 方法允許您透過將目前字串的值傳遞給指定的 Callable 來轉換字串:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$hash = Str::of('Laravel')->pipe('md5')->prepend('Checksum: ');
// 'Checksum: a5c95b86291ea299fcbe64458ed12702'
$closure = Str::of('foo')->pipe(function (Stringable $str) {
return 'bar';
});
// 'bar'plural
plural 方法將單數單字字串轉換為其複數形式。此函式支援 Laravel 複數器支援的任何語言:
use Illuminate\Support\Str;
$plural = Str::of('car')->plural();
// cars
$plural = Str::of('child')->plural();
// children您可以為該函式提供一個整數作為參數,以取得字串的單數或複數形式:
use Illuminate\Support\Str;
$plural = Str::of('child')->plural(2);
// children
$plural = Str::of('child')->plural(1);
// child您可以提供 prependCount 參數,在複數化後的字串前加上格式化後的 $count:
use Illuminate\Support\Str;
$label = Str::of('car')->plural(1000, prependCount: true);
// 1,000 carsposition
position 方法回傳子字串在字串中第一次出現的位置。如果子字串不存在於該字串中,則回傳 false:
use Illuminate\Support\Str;
$position = Str::of('Hello, World!')->position('Hello');
// 0
$position = Str::of('Hello, World!')->position('W');
// 7prepend
prepend 方法將給定的值加到字串的前面:
use Illuminate\Support\Str;
$string = Str::of('Framework')->prepend('Laravel ');
// Laravel Frameworkremove
remove 方法從字串中移除給定的值或值陣列:
use Illuminate\Support\Str;
$string = Str::of('Arkansas is quite beautiful!')->remove('quite ');
// Arkansas is beautiful!您也可以將 false 作為第二個參數傳遞,以便在移除字串時忽略大小寫。
repeat
repeat 方法重複給定的字串:
use Illuminate\Support\Str;
$repeated = Str::of('a')->repeat(5);
// aaaaareplace
replace 方法取代字串中給定的字串:
use Illuminate\Support\Str;
$replaced = Str::of('Laravel 6.x')->replace('6.x', '7.x');
// Laravel 7.xreplace 方法也接受一個 caseSensitive 參數。預設情況下,replace 方法是區分大小寫的:
$replaced = Str::of('macOS 13.x')->replace(
'macOS', 'iOS', caseSensitive: false
);replaceArray
replaceArray 方法使用陣列按順序取代字串中給定的值:
use Illuminate\Support\Str;
$string = 'The event will take place between ? and ?';
$replaced = Str::of($string)->replaceArray('?', ['8:30', '9:00']);
// The event will take place between 8:30 and 9:00replaceFirst
replaceFirst 方法取代字串中第一次出現的給定值:
use Illuminate\Support\Str;
$replaced = Str::of('the quick brown fox jumps over the lazy dog')->replaceFirst('the', 'a');
// a quick brown fox jumps over the lazy dogreplaceLast
replaceLast 方法取代字串中最後一次出現的給定值:
use Illuminate\Support\Str;
$replaced = Str::of('the quick brown fox jumps over the lazy dog')->replaceLast('the', 'a');
// the quick brown fox jumps over a lazy dogreplaceMatches
replaceMatches 方法將字串中所有符合模式的部分取代為給定的取代字串:
use Illuminate\Support\Str;
$replaced = Str::of('(+1) 501-555-1000')->replaceMatches('/[^A-Za-z0-9]++/', '')
// '15015551000'replaceMatches 方法也接受一個閉包 (Closure),該閉包將針對符合給定模式的字串各部分進行呼叫,讓您可以在閉包內執行取代邏輯並回傳取代後的值:
use Illuminate\Support\Str;
$replaced = Str::of('123')->replaceMatches('/\d/', function (array $matches) {
return '['.$matches[0].']';
});
// '[1][2][3]'replaceStart
replaceStart 方法僅在給定值出現在字串開頭時,才取代該值的第一次出現:
use Illuminate\Support\Str;
$replaced = Str::of('Hello World')->replaceStart('Hello', 'Laravel');
// Laravel World
$replaced = Str::of('Hello World')->replaceStart('World', 'Laravel');
// Hello WorldreplaceEnd
replaceEnd 方法僅在給定值出現在字串結尾時,才取代該值的最後一次出現:
use Illuminate\Support\Str;
$replaced = Str::of('Hello World')->replaceEnd('World', 'Laravel');
// Hello Laravel
$replaced = Str::of('Hello World')->replaceEnd('Hello', 'Laravel');
// Hello Worldscan
scan 方法根據 PHP 的 sscanf 函式 支援的格式,將字串的輸入解析為一個集合 (Collection):
use Illuminate\Support\Str;
$collection = Str::of('filename.jpg')->scan('%[^.].%s');
// collect(['filename', 'jpg'])singular
singular 方法將字串轉換為其單數形式。此函式支援 Laravel 複數器支援的任何語言:
use Illuminate\Support\Str;
$singular = Str::of('cars')->singular();
// car
$singular = Str::of('children')->singular();
// childslug
slug 方法從給定的字串生成適合 URL 的「Slug」:
use Illuminate\Support\Str;
$slug = Str::of('Laravel Framework')->slug('-');
// laravel-frameworksnake
snake 方法將給定的字串轉換為 snake_case:
use Illuminate\Support\Str;
$converted = Str::of('fooBar')->snake();
// foo_barsplit
split 方法使用正規表示式將字串分割成一個集合 (Collection):
use Illuminate\Support\Str;
$segments = Str::of('one, two, three')->split('/[\s,]+/');
// collect(["one", "two", "three"])squish
squish 方法移除字串中所有多餘的空白字元,包括單字之間多餘的空白:
use Illuminate\Support\Str;
$string = Str::of(' laravel framework ')->squish();
// laravel frameworkstart
start 方法會在字串開頭加上給定的值,前提是該字串尚未以該值開頭:
use Illuminate\Support\Str;
$adjusted = Str::of('this/string')->start('/');
// /this/string
$adjusted = Str::of('/this/string')->start('/');
// /this/stringstartsWith
startsWith 方法用於判斷字串是否以給定的值開頭:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->startsWith('This');
// true您也可以傳遞一個陣列來判斷字串是否以陣列中的任何一個值開頭:
use Illuminate\Support\Str;
$result = Str::of('This is my name')->startsWith(['This', 'That']);
// truestripTags
stripTags 方法會移除字串中的所有 HTML 與 PHP 標籤:
use Illuminate\Support\Str;
$result = Str::of('<a href="https://laravel.com">Taylor <b>Otwell</b></a>')->stripTags();
// Taylor Otwell
$result = Str::of('<a href="https://laravel.com">Taylor <b>Otwell</b></a>')->stripTags('<b>');
// Taylor <b>Otwell</b>studly
studly 方法將給定的字串轉換為 StudlyCase:
use Illuminate\Support\Str;
$converted = Str::of('foo_bar')->studly();
// FooBarsubstr
substr 方法回傳由給定的起始位置與長度參數指定的字串部分:
use Illuminate\Support\Str;
$string = Str::of('Laravel Framework')->substr(8);
// Framework
$string = Str::of('Laravel Framework')->substr(8, 5);
// FramesubstrReplace
substrReplace 方法會替換字串中一部分的文字,從第二個參數指定的位置開始,並替換第三個參數指定的字元數。若為該方法的第三個參數傳入 0,則會在指定位置插入字串,而不替換字串中任何現有的字元:
use Illuminate\Support\Str;
$string = Str::of('1300')->substrReplace(':', 2);
// 13:
$string = Str::of('The Framework')->substrReplace(' Laravel', 3, 0);
// The Laravel Frameworkswap
swap 方法使用 PHP 的 strtr 函式替換字串中的多個值:
use Illuminate\Support\Str;
$string = Str::of('Tacos are great!')
->swap([
'Tacos' => 'Burritos',
'great' => 'fantastic',
]);
// Burritos are fantastic!take
take 方法從字串開頭回傳指定數量的字元:
use Illuminate\Support\Str;
$taken = Str::of('Build something amazing!')->take(5);
// Buildtap
tap 方法將字串傳遞給給定的閉包 (Closure),讓您可以在不影響字串本身的情況下檢查字串並與之互動。無論閉包回傳什麼內容,tap 方法都會回傳原始字串:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('Laravel')
->append(' Framework')
->tap(function (Stringable $string) {
dump('String after append: '.$string);
})
->upper();
// LARAVEL FRAMEWORKtest
test 方法用於判斷字串是否符合給定的正規表示式模式:
use Illuminate\Support\Str;
$result = Str::of('Laravel Framework')->test('/Laravel/');
// truetitle
title 方法將給定的字串轉換為 Title Case:
use Illuminate\Support\Str;
$converted = Str::of('a nice title uses the correct case')->title();
// A Nice Title Uses The Correct CasetoBase64
toBase64 方法將給定的字串轉換為 Base64:
use Illuminate\Support\Str;
$base64 = Str::of('Laravel')->toBase64();
// TGFyYXZlbA==toHtmlString
toHtmlString 方法將給定的字串轉換為 Illuminate\Support\HtmlString 的執行個體,在 Blade 範本中渲染時不會被逸出:
use Illuminate\Support\Str;
$htmlString = Str::of('Nuno Maduro')->toHtmlString();toUri
toUri 方法將給定的字串轉換為 Illuminate\Support\Uri 的執行個體:
use Illuminate\Support\Str;
$uri = Str::of('https://example.com')->toUri();transliterate
transliterate 方法將嘗試將給定的字串轉換為最接近的 ASCII 表示形式:
use Illuminate\Support\Str;
$email = Str::of('ⓣⓔⓢⓣ@ⓛⓐⓡⓐⓥⓔⓛ.ⓒⓞⓜ')->transliterate()
// '[email protected]'trim
trim 方法會去除給定字串開頭與結尾的空白字元 (或其他字元)。與 PHP 原生的 trim 函式不同,Laravel 的 trim 方法還會移除 Unicode 的空白字元:
use Illuminate\Support\Str;
$string = Str::of(' Laravel ')->trim();
// 'Laravel'
$string = Str::of('/Laravel/')->trim('/');
// 'Laravel'ltrim
ltrim 方法會去除字串左側的空白字元 (或其他字元)。與 PHP 原生的 ltrim 函式不同,Laravel 的 ltrim 方法還會移除 Unicode 的空白字元:
use Illuminate\Support\Str;
$string = Str::of(' Laravel ')->ltrim();
// 'Laravel '
$string = Str::of('/Laravel/')->ltrim('/');
// 'Laravel/'rtrim
rtrim 方法會去除字串右側的空白字元 (或其他字元)。與 PHP 原生的 rtrim 函式不同,Laravel 的 rtrim 方法還會移除 Unicode 的空白字元:
use Illuminate\Support\Str;
$string = Str::of(' Laravel ')->rtrim();
// ' Laravel'
$string = Str::of('/Laravel/')->rtrim('/');
// '/Laravel'ucfirst
ucfirst 方法回傳將第一個字元轉為大寫後的字串:
use Illuminate\Support\Str;
$string = Str::of('foo bar')->ucfirst();
// Foo barucsplit
ucsplit 方法透過大寫字元將給定的字串分割為集合 (Collection):
use Illuminate\Support\Str;
$string = Str::of('Foo Bar')->ucsplit();
// collect(['Foo ', 'Bar'])ucwords
ucwords 方法將給定字串中每個單字的第一個字元轉換為大寫:
use Illuminate\Support\Str;
$string = Str::of('laravel framework')->ucwords();
// Laravel Frameworkunwrap
unwrap 方法從給定字串的開頭與結尾移除指定的字串:
use Illuminate\Support\Str;
Str::of('-Laravel-')->unwrap('-');
// Laravel
Str::of('{framework: "Laravel"}')->unwrap('{', '}');
// framework: "Laravel"upper
upper 方法將給定的字串轉換為大寫:
use Illuminate\Support\Str;
$adjusted = Str::of('laravel')->upper();
// LARAVELwhen
when 方法會在給定的條件為 true 時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('Taylor')
->when(true, function (Stringable $string) {
return $string->append(' Otwell');
});
// 'Taylor Otwell'如有需要,您可以將另一個閉包作為第三個參數傳遞給 when 方法。如果條件參數評估為 false,則會執行此閉包。
whenContains
whenContains 方法會在字串包含給定值時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('tony stark')
->whenContains('tony', function (Stringable $string) {
return $string->title();
});
// 'Tony Stark'如有需要,您可以傳遞另一個閉包作為第三個參數。如果字串不包含給定值,則會呼叫該閉包。
您也可以傳遞一個值陣列,以判斷給定字串是否包含該陣列中的任何值:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('tony stark')
->whenContains(['tony', 'hulk'], function (Stringable $string) {
return $string->title();
});
// Tony StarkwhenContainsAll
whenContainsAll 方法會在字串包含所有給定的子字串時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('tony stark')
->whenContainsAll(['tony', 'stark'], function (Stringable $string) {
return $string->title();
});
// 'Tony Stark'如有需要,您可以傳遞另一個閉包作為第三個參數。如果條件參數評估為 false,則會呼叫該閉包。
whenDoesntEndWith
whenDoesntEndWith 方法會在字串不以給定子字串結尾時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('disney world')->whenDoesntEndWith('land', function (Stringable $string) {
return $string->title();
});
// 'Disney World'whenDoesntStartWith
whenDoesntStartWith 方法會在字串不以給定子字串開頭時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('disney world')->whenDoesntStartWith('sea', function (Stringable $string) {
return $string->title();
});
// 'Disney World'whenEmpty
whenEmpty 方法會在字串為空時執行給定的閉包。如果閉包回傳一個值,該值也將由 whenEmpty 方法回傳。如果閉包沒有回傳值,則會回傳 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of(' ')->trim()->whenEmpty(function (Stringable $string) {
return $string->prepend('Laravel');
});
// 'Laravel'whenNotEmpty
whenNotEmpty 方法會在字串不為空時執行給定的閉包。如果閉包回傳一個值,該值也將由 whenNotEmpty 方法回傳。如果閉包沒有回傳值,則會回傳 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('Framework')->whenNotEmpty(function (Stringable $string) {
return $string->prepend('Laravel ');
});
// 'Laravel Framework'whenStartsWith
whenStartsWith 方法會在字串以給定子字串開頭時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('disney world')->whenStartsWith('disney', function (Stringable $string) {
return $string->title();
});
// 'Disney World'whenEndsWith
whenEndsWith 方法會在字串以給定子字串結尾時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('disney world')->whenEndsWith('world', function (Stringable $string) {
return $string->title();
});
// 'Disney World'whenExactly
whenExactly 方法會在字串與給定字串完全符合時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('laravel')->whenExactly('laravel', function (Stringable $string) {
return $string->title();
});
// 'Laravel'whenNotExactly
whenNotExactly 方法會在字串與給定字串不完全符合時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('framework')->whenNotExactly('laravel', function (Stringable $string) {
return $string->title();
});
// 'Framework'whenIs
whenIs 方法會在字串符合給定模式時執行給定的閉包。星號可用作萬用字元。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('foo/bar')->whenIs('foo/*', function (Stringable $string) {
return $string->append('/baz');
});
// 'foo/bar/baz'whenIsAscii
whenIsAscii 方法會在字串為 7 位元 ASCII 時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('laravel')->whenIsAscii(function (Stringable $string) {
return $string->title();
});
// 'Laravel'whenIsUlid
whenIsUlid 方法會在字串為有效的 ULID 時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
$string = Str::of('01gd6r360bp37zj17nxb55yv40')->whenIsUlid(function (Stringable $string) {
return $string->substr(0, 8);
});
// '01gd6r36'whenIsUuid
whenIsUuid 方法會在字串為有效的 UUID 時執行給定的閉包。該閉包將會接收到 Fluent String 實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('a0a2a2d2-0b87-4a18-83f2-2529882be2de')->whenIsUuid(function (Stringable $string) {
return $string->substr(0, 8);
});
// 'a0a2a2d2'whenTest
whenTest 方法會在字串符合給定的正規表示式時呼叫給定的閉包 (Closure)。該閉包將會接收這個流暢字串實例:
use Illuminate\Support\Str;
use Illuminate\Support\Stringable;
$string = Str::of('laravel framework')->whenTest('/laravel/', function (Stringable $string) {
return $string->title();
});
// 'Laravel Framework'wordCount
wordCount 方法回傳字串中所包含的單字數量:
use Illuminate\Support\Str;
Str::of('Hello, world!')->wordCount(); // 2words
words 方法限制字串中的單字數量。如有需要,您可以指定額外的字串,該字串將會被附加在截斷後的字串末尾:
use Illuminate\Support\Str;
$string = Str::of('Perfectly balanced, as all things should be.')->words(3, ' >>>');
// Perfectly balanced, as >>>wrap
wrap 方法使用額外的字串或一對字串來包覆給定的字串:
use Illuminate\Support\Str;
Str::of('Laravel')->wrap('"');
// "Laravel"
Str::is('is')->wrap(before: 'This ', after: ' Laravel!');
// This is Laravel!