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  1. <?php
  2. function no_suppress() {
  3.     $a = 0;
  4.     $b = new stdClass;
  5.     $a = (isset($b->asdf) ? $b->asdf : null);
  6. }
  7. function suppress() {
  8.     $a = 0;
  9.     $b = new stdClass;
  10.     $a = @$b->asdf ? $b->asdf : null;
  11. }
  12. function do_test($suppress = false, $loops = 1000000) {
  13.     if($suppress) {
  14.         echo "starting suppress...\n";
  15.         $start = microtime(true);
  16.         for($i = 0; $i < $loops; $i++) {
  17.             suppress();
  18.         }
  19.         $end = microtime(true);
  20.     } else {
  21.         echo "starting no_suppress...\n";
  22.         $start = microtime(true);
  23.         for($i = 0; $i < $loops; $i++) {
  24.             no_suppress(true);
  25.         }
  26.         $end = microtime(true);
  27.     }
  28.     echo "ended: " . ($end - $start) . "\n";
  29. }
  30. do_test();
  31. do_test(true);
Success #stdin #stdout 2.84s 52472KB
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stdin
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Standard input is empty
stdout
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starting no_suppress...
ended: 0.79577279090881
starting suppress...
ended: 2.0292670726776
https://ideone.com/u6EBm2
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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