Online PHP editor | perf for JKBoQ

<?php $elements = array(); //// // An array of 10,000 elements with random string values //// for($i = 0; $i < 10000; $i++) { $elements[] = [(string)rand(10000000, 99999999)]; } $time_start = microtime(true); //// // for test //// $numb = count($elements); for($i = 0; $i < $numb; $i++) { $elements[$i][0] = 1; } $time_end = microtime(true); $for_time = $time_end - $time_start; $time_start = microtime(true); //// // for with count() inside loop test //// for($i = 0; $i < count($elements); $i++) { $elements[$i][0] = 1; } $time_end = microtime(true); $for_count_time = $time_end - $time_start; $time_start = microtime(true); //// // foreach test //// foreach($elements as &$element) { $element[0]= 1; } $time_end = microtime(true); $foreach_time = $time_end - $time_start; echo "For took: " . number_format($for_time * 1000, 3) . "ms\n"; echo "For with count() took: " . number_format($for_count_time * 1000, 3) . "ms\n"; echo "Foreach took: " . number_format($foreach_time * 1000, 3) . "ms\n";

Version	System time (s)	User time (s)	Memory (MiB)
7.2.4	0.405	0.018	22.60
7.2.3	0.378	0.020	22.61
7.2.2	0.343	0.011	22.84
7.2.1	0.381	0.016	22.71
7.2.0	0.406	0.015	22.76
7.1.16	0.431	0.016	21.23
7.1.15	0.389	0.017	21.23
7.1.14	0.352	0.020	21.05
7.1.13	0.334	0.016	21.45
7.1.12	0.409	0.016	21.51
7.1.11	0.354	0.016	20.94
7.1.10	0.333	0.017	20.50
7.1.9	0.440	0.013	20.46
7.1.8	0.375	0.018	20.66
7.1.7	0.332	0.016	19.70
7.1.6	0.292	0.018	38.15
7.1.5	0.392	0.021	37.49
7.1.4	0.322	0.014	37.41
7.1.3	0.461	0.015	37.43
7.1.2	0.428	0.021	37.66
7.1.1	0.391	0.014	19.47
7.1.0	0.377	0.018	19.12