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  1. <?php
  2.  
  3. function foo(&$referencia) {
  4.     $referencia *= 1002;
  5. }
  6.  
  7. $valorinicial = 2;
  8.  
  9. foo($valorinicial);
  10.  
  11. //Note que aqui o valor foi alterado
  12. echo $valorinicial;
Success #stdin #stdout 0s 52488KB
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2004
https://ideone.com/FQMPvi
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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