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  1. <?php
  2.  
  3. $subject = "\n\n\nsubject\n\n\n";
  4. $count = 2;
  5. echo preg_replace("#\n{1,$count}\\z#",null,$subject);
Success #stdin #stdout 0s 52488KB
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subject
https://ideone.com/jVa6N2
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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