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  1. <?php
  2.  
  3. $bytes = random_bytes(20);
  4. var_dump(bin2hex($bytes));
  5.  
  6. // your code goes here
  7.  
Success #stdin #stdout 0.03s 25380KB
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Standard input is empty
stdout
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string(40) "1d1123de4c7e93568b7d9a6a4fb97d51d45895df"
https://ideone.com/WUue93
language:
PHP (php 7.3.5)
created:
4 days ago
visibility:
public

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