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  1. <?php
  2.  
  3. // your code goes here
  4. echo preg_replace_callback("/./", function($matched) {
  5.     return '\x'.dechex(ord($matched[0]));
  6. }, '🐘');
Success #stdin #stdout 0.02s 26400KB
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stdin
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Standard input is empty
stdout
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\xf0\x9f\x90\x98
https://ideone.com/m58rEZ
language:
PHP (php 7.3.5)
created:
3 years ago
visibility:
public

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