从字符串中删除我想要的东西

Question

I got a few keywords, symbols, letters etc I want to remove from my php string. I'm trying to add it but it doesn't work too well.

$string = preg_replace("/(?![=$'%-mp4mp3])\p{P}/u","", $check['title']);

pretty much I want to to remove word mp3, mp4, ./, apples from the string.

Please help guide me, thanks in advance!

Answer 1

You don't need regex for that.

$string = "Your original string here";
$keywords = array('mp3', 'mp4');
echo str_replace($keywords, '', $string);