Removing string using "preg_replace"

Question

I want to remove some html/js tag using "preg_replace". Here's my html tag:

<style type=text/css>' );document.write( '@media Print' );document.write( '{' );document.write( 'BODY {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( 'TABLE {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( 'TR {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( 'TD {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( '}' );document.write( '</style>' );

I want to remove tags from <style type=text/css>' ) up to ( '</style>' );.

My code is like this:

$result3 = preg_replace("(\<style(.+?)<\/style>/", '', $result2);

But nothing gets removed when I run it.

I would appreciate your help. Also if you could explain the answer to me I would be grateful.

@AlivetoDie--Anantsingh i want to remove all of these html tag, not replace it to ``. `` i want to remove it too. — ainodoramaaa 2, Dec 07 '17 at 05:21
@ainodoramaaa2 Check my answer. You need to use preg_replace twice to remove all style etc. from your string. Hope it works for you! — Amit Gupta, Dec 07 '17 at 05:32

Amit Gupta · Answer 1 · 2017-12-07T05:38:16.297

You need to use preg_replace like below (Tested Offline):

<?php
$string = "another text above here";
$string .= "<style type=text/css>' );document.write( '@media Print' );document.write( '{' );document.write( 'BODY {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( 'TABLE {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( 'TR {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( 'TD {' );document.write( 'DISPLAY: none; print: none' );document.write( '}' );document.write( '}' );document.write( '</style>' );";

$string = preg_replace("/<!--.*?-->/", "", $string);
$string = preg_replace("/\([^)]+\)/","",$string);

echo $string;
?>

// Below Output will come
another text above here

Downvoter please explain in comment. – Amit Gupta Dec 07 '17 at 12:09 — Amit Gupta, Dec 07 '17 at 12:09
@ainodoramaaa2 Have you tried my solution? – Amit Gupta Dec 07 '17 at 12:10 — Amit Gupta, Dec 07 '17 at 12:10

Removing string using "preg_replace"

1 Answers1