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php 匹配中文字符的正则表达式

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Release: 2016-06-08 17:26:11
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<script>ec(2);</script>

php教程 匹配中文字符的正则表达式

匹配中文字符的正则表达式: [u4e00-u9fa5]
评注:匹配中文还真是个头疼的事,有了这个表达式就好办了
匹配双字节字符(包括汉字在内):[^x00-xff]
评注:可以用来计算字符串的长度(一个双字节字符长度计2,ascii字符计1)
*/

 

$str = "singlepoint单点日志";
if (preg_match("/^[x{4e00}-x{9fa5}]+$/u",$str)) {
print("该字符串全部是中文");
} else {
print("该字符串不全部是中文");
}


$alias_len = mb_strlen($value['alias'], "utf-8");
$temp_array = array();
for($i = 0;$i {
 $temp_array[$i] = mb_substr($value['alias'],$i,1,"utf-8");
 if(ord(substr($temp_array[$i],0,1))>'0xe0' && strlen($temp_array[$i])      $temp_array[$i] = '';

}
$value['alias'] = implode('',$temp_array);

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