How to replace part of a string in php

How to replace part of a string in php: First create a PHP sample file; then use the "str_replace" function to replace the specified string.

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PHP replaces the specified string

Use str_replace Replace the specified string

$param = '香蕉皮是什么垃圾';
$pattone = [
            '是什么垃圾',
            '是啥垃圾',
            '属于什么垃圾',
            '算什么垃圾',
            '属于啥垃圾',
            '算啥垃圾',
 ];
 $new_param = str_replace($pattone, '*', $param);

$param = '香蕉皮是哪类垃圾';
$patttwo = [   //字数多的放在前面优先匹配
            '是不是',
            '垃圾吗',
            '属不属于',
            '算不算',
            '哪一种',
            '哪一类',
            '哪种',
            '哪类',
            '属于',
            '一种',
            '垃圾',
            '什么',
            '算',
            '啥',
            '是',
        ];
        $new_param = str_replace($patttwo, '*', $param);

Use the regular method, the string function is faster than the regular

$param = '香蕉皮是哪类垃圾';
$patt = '/是不是|属不属于|算不算|垃圾|是|算|啥|什么|属于|哪类/';
$new_param = preg_replace($patt, '*', $param);

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