How to remove whitespace characters in php

php method to remove whitespace characters: first create a PHP sample file; then delete all whitespace characters in the string through the "preg_replace("/\s /", "", $var);" method Can.

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PHP Remove Whitespace Characters

Example 1:

<?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）
    $var1 = preg_replace("/\s+/", "", $var);
    echo $var1.&#39;<br>&#39;;
?>

Example 2:

<?php
    // 删除字符串中所有的字符（包括全角空格）
    $var = "        　This           is   a      beautiful        day!";
    $var1 =preg_replace("/\s|　/", "", $var);  // 已经包含了全角空格
    echo $var1.&#39;<br>&#39;;
?>

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