How to remove punctuation marks in php

php method to remove punctuation marks: first create a PHP sample file; then use the regular expression "preg_replace($pattern, ' ', $str);" to delete Chinese and English punctuation marks in the string .

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php regular, delete Chinese and English punctuation marks in the string

The principle is very simple. Regular expressions search for strings and then replace

English punctuation marks. There are special patterns in the regular expressions to match. For Chinese, you need to list the

codes one by one:

<?php  
$str = "!@#$%^&*（中&#39;文：；﹑•中&#39;文中&#39;文().,<>|[]&#39;\""; 
  
//中文标点
$char = "。、！？：；﹑•＂…‘’“”〝〞∕¦‖—　〈〉﹞﹝「」‹›〖〗】【»«』『〕〔》《﹐¸﹕︰﹔！¡？¿﹖﹌﹏﹋＇´ˊˋ―﹫︳︴¯＿￣﹢﹦﹤‐­˜﹟﹩﹠﹪﹡﹨﹍﹉﹎﹊ˇ︵︶︷︸︹︿﹀︺︽︾ˉ﹁﹂﹃﹄︻︼（）";
  
$pattern = array(
    "/[[:punct:]]/i", //英文标点符号
    &#39;/[&#39;.$char.&#39;]/u&#39;, //中文标点符号
    &#39;/[ ]{2,}/&#39;
);
$str = preg_replace($pattern, &#39; &#39;, $str);
echo $str;

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