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  1. <?php
  2.  
  3. $r = '$1\1';
  4. echo preg_replace('~(B.*?S)~', str_replace(array('\\', '$'), array('\\\\', '\\$'), $r), "BOSS");
Success #stdin #stdout 0.04s 52480KB
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Standard input is empty
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$1\1S
https://ideone.com/mINuHj
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
secret

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