How to use regular expressions to match Chinese characters in PHP and JS

This time I will show you how to use regular expressions to match Chinese characters in php and JS. What are the precautions for using regular expressions to match Chinese characters in php and JS. The following is a practical case. Let’s take a look. .

javascript. Share it with everyone for your reference, the details are as follows:

regular matching utf-8 Chinese in php: (the emphasis is: [\x{4e00}-\x{9fa5} ]+）

$str = "脚本之家";
if (preg_match("/^[\x{4e00}-\x{9fa5}]+$/u",$str,$arr)) {
  print("该字符串全部是中文");
  echo '<pre class="brush:php;toolbar:false">';
  print_r($arr);
} else {
  print("该字符串不全部是中文");
  echo '<pre class="brush:php;toolbar:false">';
  print_r($arr);
}

Regular match in php gbk, gb2312 Chinese:

preg_match("/^[".chr(0xa1)."-".chr(0xff)."]+$/",$str)

javascript regular match Chinese:

var str = "php编程";
if (/^[\u4e00-\u9fa5]+$/.test(str)) {
alert("该字符串全部是中文");
} else {
alert("该字符串不全部是中文");
}

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