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@rafasashi

rafasashi/strip_single_tag.php

Last active November 28, 2019 03:44
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strip a single html tag
Raw
strip_single_tag.php
function strip_single_tag($str,$tag=''){
if(is_array($tag)){
foreach($tag as $t){
$str=strip_single_tag($str,$t);
}
}
else{
$str1=preg_replace('/<\/'.$tag.'>/i', '', $str);
if($str1 != $str){
$str=preg_replace('/<'.$tag.'[^>]*>/i', '', $str1);
}
}
return $str;
}
@wolfkang
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Hi,
strip_single_tag('<pre>abc</pre>','p') returns 'abc</pre>'.

@rafasashi
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Author

Thanks wolfkang ! What about now?

@meagar
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meagar commented Nov 28, 2019

This is incorrect and dangerous. You cannot strip tags from HTML using regular expressions. Consider how your code will handle stripping div tags from this input:

<!doctype html>
<html lang="en">
  <head><title>foo</title></head>
  <body>
  <div>
    <script>
      let x = "</div>"
    </script>
  </div>
</body>
</html>

You need a DOM parser for working with HTML documents.

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