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  1. <?php
  2.  
  3. $html = '
  4. <div style="height:100px;" id="main" >
  5. <div style = height:100px; id="main" >
  6. <a href="133"></a>
  7. <blockquote color="123"/>
  8.   <a class = asdfsdf href="http://n...content-available-to-author-only...t.com/.[some stuff to find].zip">
  9.   <a href=\'http://n...content-available-to-author-only...t.com/.[more stuff to find].zip \'>
  10.   <a hello world href = http://n...content-available-to-author-only...t.com/.[unquoted_stuff_to_find].zip />
  11. <a>
  12. ';
  13.  
  14. $regex = '~
  15. ( < (?:div|span|a|img|ul|li|blockquote) (?=\s) )         # 1
  16.    (?= 
  17.      (?:
  18.         (?:[^>"\']|"[^"]*"|\'[^\']*\')*? 
  19.         (                                                      # 2
  20.           \s  style \s*=
  21.           (?: (?>  \s* ([\'"]) \s* (?:(?!\g{-1}) .)* \s* \g{-1} )  #3
  22.             | (?>  (?!\s*[\'"]) \s* [^\s>]* (?=\s|>) )
  23.           )
  24.         )
  25.      )?
  26.    )
  27.   \s* (?:".*?"|\'.*?\'|[^>]*?)+ 
  28. ( /?> )                                                  # 4
  29. ~xs';
  30.  
  31. echo preg_replace( $regex, '$1$2$4', $html);
  32.  
  33. ?>
  34.  
Success #stdin #stdout 0.02s 13256KB
comments (?)
stdin 
Standard input is empty
stdout 
<div style="height:100px;">
<div style = height:100px;>
<a></a>
<blockquote/>
  <a>
  <a>
  <a/>
<a>
https://ideone.com/vRk1u
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
public

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