How to remove "//" character from string in php

Two removal methods: 1. Use the str_replaceh() function to search for the "//" substring in the string and replace it with an empty character. The syntax is "str_replace("//","" , string)". 2. Use the preg_replace() function and regular expression to match the "//" substring and replace it with a null character. The syntax is "preg_replace("/\//","", string)".

The operating environment of this tutorial: windows7 system, PHP8.1 version, DELL G3 computer

Method 1: Use str_replaceh() The function removes the "//" characters from the string

Use str_replaceh() to search for the "//" substring and replace it with an empty character.

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$str= &#39;123//34kh9//8jjhg//&#39;;
echo "原字符串：".$str."<br>";
$newStr=str_replace("//","",$str);
echo "新字符串：".$newStr;
?>

Method 2: Use the preg_replace() function and regular expressions to remove the "//" characters in the string

Use regular expressions to search for all "//" in the string and replace them with the empty characters ''.

Regular expression used: /\//

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$str= &#39;//123//34kh9//8jjhg//&#39;;
echo "原字符串：".$str."<br>";
$regex = "/\//";
$newStr=preg_replace($regex,"", $str);
echo "新字符串：".$newStr;
?>

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