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  1. <?php
  2. function test($x)
  3. {
  4.     $t1 = microtime(true);
  5.     $a = 0;
  6.     for($i = 0; $i < $x; ++$i)
  7.     {
  8.         //1.40s Reassign and use $a.
  9.         //$a += 1;
  10.         //1.15s Use and increment $a.
  11.         //$a++;
  12.         //0.88s Increment and use $a.
  13.         //++$a;
  14.         //0.69s Do nothing.
  15.     }
  16.     $t2 = microtime(true);
  17.     echo "Time for $x was " . ($t2 - $t1) . "\n";
  18.     return $a;
  19. }
  20. echo test(1e8);
Success #stdin #stdout 0.73s 23612KB
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stdin
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Standard input is empty
stdout
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Time for 100000000 was 0.70396995544434
0
https://ideone.com/bI6jzD
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
public

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