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php正则表达式匹配中文
$str = '';
$isMatched = preg_match('/[u4e00-u9fa5]/', $str, $matches);
var_dump($isMatched, $matches);
$isMatched = preg_match('/[u4e00-u9fa5]/', $str, $matches);
var_dump($isMatched, $matches);
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