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                php用preg_match來匹配并判斷一個字符串中是否含有中文或者都是中文的方法如下: ~~~ $str = 'php學習博客'; if(preg_match('/[\x7f-\xff]/', $str)){ echo '字符串中有中文<br/>'; }else{ echo '字符串中沒有中文<br/>'; } if(preg_match('/^[\x7f-\xff]+$/', $str)){ echo '字符串全是中文'; }else{ echo '字符串不全是中文'; } ~~~ 以上程序的輸出的結果為: 字符串中有中文 字符串不全是中文 utf-8和gbk編碼下都進行了一番測試,均可以使用。
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