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  1. <?php
  2. $str = <<< EOF
  3. <code><div class="b-line"></div>
  4.  
  5.  
  6.  
  7.  
  8.       poo
  9.   <lol>
  10.    n
  11.  
  12.   </code>      
  13. EOF;
  14.  
  15. echo $str;
  16. echo "\n-------------\n";
  17. echo preg_replace(',(?|(<code><div class="b-line"></div>)\s+|\s+(</code>)),', '$1', $str);
  18. ?>
Success #stdin #stdout 0.02s 13112KB
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Standard input is empty
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<code><div class="b-line"></div>




      poo
  <lol>
   n

  </code>      
-------------
<code><div class="b-line"></div>poo
  <lol>
   n</code>
https://ideone.com/EpexZ
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
public

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