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  1. <?php
  2.  
  3. print "\n";
  4.  
  5. $num = 1000000;
  6.  
  7. $t = microtime(true);
  8. $array = array();
  9. for($i = 0; $i < $num; $i++) {
  10.     $array[] =  $i;
  11. }
  12. print microtime(true) - $t;
  13.  
  14. print "\n";
  15.  
  16. $t = microtime(true);
  17. $array = [];
  18. for($i = 0; $i < $num; $i++) {
  19.     $array[] = $i;
  20. }
  21. print microtime(true) - $t;
  22.  
  23. print "\n";
  24.  
  25. $t = microtime(true);
  26. $array = array();
  27. for($i = 0; $i < $num; $i++) {
  28.     $array[] =  $i;
  29. }
  30. print microtime(true) - $t;
  31.  
  32. print "\n";
  33.  
  34. $t = microtime(true);
  35. $array = [];
  36. for($i = 0; $i < $num; $i++) {
  37.     $array[] = $i;
  38. }
  39. print microtime(true) - $t;
  40.  
  41. print "\n";
  42.  
  43. $t = microtime(true);
  44. $array = array();
  45. for($i = 0; $i < $num; $i++) {
  46.     $array[] =  $i;
  47. }
  48. print microtime(true) - $t;
  49.  
  50. print "\n";
  51.  
  52. $t = microtime(true);
  53. $array = [];
  54. for($i = 0; $i < $num; $i++) {
  55.     $array[] = $i;
  56. }
  57. print microtime(true) - $t;
  58.  
  59. print "\n";
  60.  
  61. $t = microtime(true);
  62. $array = array();
  63. for($i = 0; $i < $num; $i++) {
  64.     $array[] =  $i;
  65. }
  66. print microtime(true) - $t;
  67.  
  68. print "\n";
  69.  
  70. $t = microtime(true);
  71. $array = [];
  72. for($i = 0; $i < $num; $i++) {
  73.     $array[] = $i;
  74. }
  75. print microtime(true) - $t;
  76.  
  77. print "\n";
  78.  
  79. $t = microtime(true);
  80. $array = array();
  81. for($i = 0; $i < $num; $i++) {
  82.     $array[] =  $i;
  83. }
  84. print microtime(true) - $t;
  85.  
  86. print "\n";
  87.  
  88. $t = microtime(true);
  89. $array = [];
  90. for($i = 0; $i < $num; $i++) {
  91.     $array[] = $i;
  92. }
  93. print microtime(true) - $t;
  94.  
  95. print "\n";
  96.  
Success #stdin #stdout 4.32s 24472KB
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stdin
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Standard input is empty
stdout
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0.38749504089355
0.48572897911072
0.42058682441711
0.41594505310059
0.41526508331299
0.42254090309143
0.415687084198
0.41516304016113
0.42228507995605
0.41804790496826
https://ideone.com/xEwbIJ
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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