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<?php $str = "php编程"; if (preg_match("/^[\x{4e00}-\x{9fa5}]+$/u",$str)) { print("该字符串全部是中文"); } else { print("该字符串不全部是中文"); }
Output for git.master, git.master_jit, rfc.property-hooks
该字符串不全部是中文

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