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  1. <?php
  2.  
  3. function double($x) {
  4.     echo 2*$x, PHP_EOL;
  5. }
  6.  
  7. $array = [1, 2, 3, 4];
  8.  
  9. foreach ($array as $x) {
  10.     double($x);
  11. }
Success #stdin #stdout 0s 82880KB
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https://ideone.com/AxIdzo
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
secret

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