3v4l.org

run code in 300+ PHP versions simultaneously
<?php $all = []; for( $i=0; $i<2000; $i++ ) { for( $j=0; $j<500; $j++ ) { $all[$i][$j] = $j; } } $mergedArray = []; $start = microtime(true); foreach($all as &$templateClosingArray) { $mergedArray += $templateClosingArray; } $mergedArray = []; foreach($all as &$templateClosingArray) { $mergedArray += $templateClosingArray; } $mergedArray = []; foreach($all as &$templateClosingArray) { $mergedArray += $templateClosingArray; } echo PHP_EOL . 'Union time: ' . microtime(true); $start = microtime(true); $mergedArray = []; $mergedArray = array_merge(...$all); $mergedArray = []; $mergedArray = array_merge(...$all); $mergedArray = []; $mergedArray = array_merge(...$all); echo PHP_EOL . 'Array merge time: ' . microtime(true);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.4.140.0850.05348.89
8.4.130.0440.03448.55
8.4.120.0550.05448.98
8.4.110.0740.05748.97
8.4.100.0760.07148.76
8.4.90.0760.07448.59
8.4.80.0580.07248.90
8.4.70.0980.09148.94
8.4.60.0680.06648.99
8.4.50.0630.06749.12
8.4.40.0690.05248.86
8.4.30.0680.05748.63
8.4.20.0600.07748.81
8.4.10.0590.05948.84
8.3.270.0700.06447.75
8.3.260.0730.04448.01
8.3.250.0330.04147.73
8.3.240.0760.04847.65
8.3.230.0510.06247.68
8.3.220.0780.05747.62
8.3.210.0570.06047.73
8.3.200.0610.06247.88
8.3.190.0590.06947.92
8.3.180.0600.08147.88
8.3.170.0440.03247.77
8.3.160.0880.07747.49
8.3.150.0700.06547.76
8.3.140.0670.06047.67
8.3.130.0640.06747.81
8.3.120.0450.03647.70
8.3.110.0760.07747.66
8.3.100.0480.02947.64
8.3.90.0700.05947.96
8.3.80.0780.07347.71
8.3.70.1070.08047.73
8.3.60.0610.06747.82
8.3.50.0590.07147.62
8.3.40.0420.05433.56
8.3.30.0490.05133.61
8.3.20.0470.05533.64
8.3.10.0200.02633.68
8.3.00.0420.06033.65
8.2.290.0470.05248.09
8.2.280.0720.05547.91
8.2.270.0980.06147.94
8.2.260.0650.06547.72
8.2.250.0830.06547.96
8.2.240.0460.03347.68
8.2.230.0420.03347.68
8.2.220.0420.03647.65
8.2.210.0490.03947.37
8.2.200.0600.05447.52
8.2.190.0640.06547.39
8.2.180.0820.08347.64
8.2.170.0340.04733.79
8.2.160.0460.06133.70
8.2.150.0590.04933.74
8.2.140.0630.05833.62
8.2.130.0510.05133.64
8.2.120.0520.05233.86
8.2.110.0460.06233.66
8.2.100.0220.02733.41
8.2.90.0580.05933.64
8.2.80.0500.05733.46
8.2.70.0480.06833.14
8.2.60.0500.05233.40
8.2.50.0390.05133.36
8.2.40.0480.05833.39
8.2.30.0440.06333.48
8.2.20.0420.06733.36
8.2.10.0390.05733.51
8.2.00.0520.06733.29

preferences:
27.67 ms | 403 KiB | 5 Q