How to remove whitespace characters in php

How to remove white characters in php

In php, you can use the function "preg_replace" to remove white characters. The function of this function executes a regular When using expression search and replacement, you need to pass in 3 parameters. The first parameter is the regular expression "/\s /", the second parameter is empty, and the third parameter is the string from which whitespace characters are to be removed. , and finally receive the return value.

Usage example:

<?php
    $var = "        This           is   a      beautiful        day!";

    // 删除字符串中的所有空白字符（不包括全角空格）
    $var = preg_replace("/\s+/", "", $var);
    echo $var;
?>

Recommended tutorial: "PHP Tutorial"

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