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  1. <?php
  2.  
  3. print "\n";
  4.  
  5. $num = 1000000;
  6.  
  7. $t = microtime(true);
  8. $array = [];
  9. for($i = 0; $i < $num; $i++) {
  10.     $array[] = $i;
  11. }
  12. print microtime(true) - $t;
  13.  
  14. print "\n";
  15.  
  16. $t = microtime(true);
  17. $array = array();
  18. for($i = 0; $i < $num; $i++) {
  19.     $array[] =  $i;
  20. }
  21. print microtime(true) - $t;
  22.  
  23. print "\n";
  24.  
Success #stdin #stdout 0.98s 24472KB
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0.39411997795105
0.48012089729309
https://ideone.com/qKEgm9
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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