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  1. <?php
  2.  
  3. // your code goes here
  4.  
  5.  
  6. $a = ' 100 ';
  7. $b = ' 100001 ';
  8.  
  9. echo $a . $b;
  10.  
  11. $a ^= $b ^= $a ^= $b;
  12. echo '<br>';
  13. echo $a . $b;
Success #stdin #stdout 0.01s 20568KB
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Standard input is empty
stdout
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 100  100001 <br> 1000 100
https://ideone.com/xHf5BO
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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