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  1. <?php
  2.  
  3. $re = '/^(THIS)\b\s*(.*)/s';
  4. $str = 'THIS the rest of the string';
  5. $result = preg_replace($re, '$2 $1', $str);
  6. echo $result;
Success #stdin #stdout 0s 82624KB
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stdin
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Standard input is empty
stdout
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the rest of the string THIS
https://ideone.com/H8OBvd
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
secret

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