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                下面是網上搜索關于正則表達式匹配中文的常見版本。 ``` js /[\u4e00-\u9fa5]+/ php /[\x7f-\xff]+/ ``` 今天這里主要是針對php的版本做下擴展,其實,php版本也是能利用js那個版本進行匹配的。 很多人可能已經寫過并遇到了這個報錯: Warning: preg_match_all(): Compilation failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 2 那么,我們要怎么解決呢? 很簡單,就是這樣: ``` /[\x{4e00}-\x{9fa5}]+/u ``` 因此,想要利用php匹配中文,有兩種寫法: ``` /[\x7f-\xff]+/ ``` 和 ``` /[\x{4e00}-\x{9fa5}]+/u ``` 下面是一段是用php運行正則測試代碼的例子,有興趣的朋友可以看看運行結果(本文由 www.uuhuihui.com 整理): ``` <?php //臨時啟用全局錯誤提示 ini_set('display_errors', true); error_reporting(E_ALL); $linkeBreak = (PHP_SAPI == 'cli') ? "\n" : '<br>'; $str = '中文漢字English'; $patternArr = array( '/[\u4e00-\u9fa5]+/', '/[\x{4e00}-\x{9fa5}]+/u', '/[\x7f-\xff]+/', ); foreach($patternArr as $pattern) { echo "Pattern: {$pattern} {$linkeBreak}"; var_dump(testRegexpMatch($pattern, $str)); echo $linkeBreak; } /** * 測試正則匹配 * @param string $pattern 正則表達式 * @param string $string 源字符串 * @return array */ function testRegexpMatch($pattern, $string) { try { preg_match_all($pattern, $string, $matches); } catch (Exception $e) { return array( 'stauts' => false, 'msg' => $e->getMessage(), 'matches' => array(), ); } return array( 'stauts' => true, 'msg' => 'Success', 'matches' => $matches, ); } ```
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