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  1. <?php
  2. preg_match("/^[0-9]+/", "1412%2Fall", $result1);
  3. echo $result1[0]; //output: 1412
  4.  
  5. echo "\n";
  6.  
  7. preg_match("/^[0-9]+/", "01412%2Fall", $result2);
  8. echo $result2[0]; //output: 01412 (keeps the zero)
  9.  
  10. echo "\n";
  11.  
  12. echo (int) '1412%2Fall'; //output: 1412
  13.  
  14. echo "\n";
  15.  
  16. echo (int) '01412%2Fall'; //output: 1412
  17.  
  18. echo "\n";
  19.  
  20. echo intval( '1412%2Fall' ); //output: 1412
  21.  
  22. echo "\n";
  23.  
  24. echo intval( '01412%2Fall' ); //output: 1412
Success #stdin #stdout 0.02s 23740KB
stdin
Standard input is empty
stdout
1412
01412
1412
1412
1412
1412