去除HTML和特殊字符 [英] Strip out HTML and Special Characters

问题描述

我想使用任何php函数或其他任何函数，以便我可以删除任何HTML代码和特殊字符，并且仅提供字母数字输出

I'd like to use any php function or whatever so that i can remove any HTML code and special characters and gives me only alpha-numeric output

$des = "Hello world)<b> (*&^%$#@! it's me: and; love you.<p>";

我希望输出变为Hello world it s me and love you(只是Aa-Zz-0-9-WhiteSpace)

I want the output become Hello world it s me and love you (just Aa-Zz-0-9-WhiteSpace)

我已经尝试过strip_tags，但是它仅删除了HTML代码

I've tried strip_tags but it removes only HTML codes

$clear = strip_tags($des); echo $clear;

有什么办法做〜谢谢

推荐答案

在这里使用正则表达式替换可能更好

Probably better here for a regex replace

// Strip HTML Tags
$clear = strip_tags($des);
// Clean up things like &
$clear = html_entity_decode($clear);
// Strip out any url-encoded stuff
$clear = urldecode($clear);
// Replace non-AlNum characters with space
$clear = preg_replace('/[^A-Za-z0-9]/', ' ', $clear);
// Replace Multiple spaces with single space
$clear = preg_replace('/ +/', ' ', $clear);
// Trim the string of leading/trailing space
$clear = trim($clear);

或者一口气

$clear = trim(preg_replace('/ +/', ' ', preg_replace('/[^A-Za-z0-9 ]/', ' ', urldecode(html_entity_decode(strip_tags($des))))));

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