3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ln = 1000; $a = array(); $b = array(); for ($i = 0; $i < $ln; $i++) { $a[] = 10000 + $i; $b[md5($i)] = 20000 + $i; } $s = microtime(true); $r1 = array_merge($a, array_values($b)); var_dump('merge + values = ' . (1000*(microtime(true) - $s))); $s = microtime(true); foreach ($b as $x) { $a[] = $x; } var_dump('foreach = ' . (1000*(microtime(true) - $s))); var_dump($r1 === $a);

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)
7.3.10.0000.01716.79
7.3.00.0120.00616.66
7.2.130.0040.01217.02
7.2.120.0090.00916.71
7.2.110.0120.00416.77
7.2.100.0000.01816.59
7.2.90.0040.01216.98
7.2.80.0040.01516.68
7.2.70.0110.00416.78
7.2.60.0070.01017.08
7.2.50.0040.01216.84
7.2.40.0000.01517.09
7.2.30.0030.01616.90
7.2.20.0040.00716.70
7.2.10.0070.01016.67
7.2.00.0050.00918.19
7.1.250.0120.00315.87
7.1.70.0030.01017.19
7.1.60.0030.02019.17
7.1.50.0210.00416.97
7.1.00.0070.07322.44
7.0.200.0000.01216.88
7.0.140.0030.07722.09
7.0.110.0070.05320.11
7.0.100.0070.08020.32
7.0.90.0130.06320.33
7.0.80.0070.08020.32
7.0.70.0070.08320.19
7.0.60.0070.08320.33
7.0.50.0130.08020.52
7.0.40.0070.07019.99
7.0.30.0030.08320.16
7.0.20.0070.08720.27
7.0.10.0000.08020.27
7.0.00.0070.07020.04
5.6.260.0070.08321.16
5.6.250.0130.07321.19
5.6.240.0200.07321.09
5.6.230.0030.05721.10
5.6.220.0030.08321.07
5.6.210.0070.06020.93
5.6.200.0100.07721.70
5.6.190.0100.09021.59
5.6.180.0100.08021.68
5.6.170.0100.07721.57
5.6.160.0130.07321.47
5.6.150.0070.08021.57
5.6.140.0100.05021.72
5.6.130.0100.08321.82
5.6.120.0130.08721.80
5.6.110.0070.07321.63
5.6.100.0030.08721.55
5.6.90.0100.05321.80
5.6.80.0000.09320.80
5.6.70.0100.08021.05
5.6.60.0200.06320.84
5.6.50.0100.07320.84
5.6.40.0000.08721.08
5.6.30.0030.08020.99
5.6.20.0100.08320.84
5.6.10.0070.07721.03
5.6.00.0130.07720.91
5.5.380.0070.09021.01
5.5.370.0070.07720.83
5.5.360.0130.07320.82
5.5.350.0100.09021.04
5.5.340.0070.08021.43
5.5.330.0230.06721.43
5.5.320.0030.06021.36
5.5.310.0130.07321.57
5.5.300.0130.07721.44
5.5.290.0000.07721.32
5.5.280.0070.05721.57
5.5.270.0100.08321.47
5.5.260.0100.08321.52
5.5.250.0030.07021.16
5.5.240.0130.07320.91
5.5.230.0070.07020.69
5.5.220.0070.07320.84
5.5.210.0200.07020.82
5.5.200.0130.05020.84
5.5.190.0100.07720.78
5.5.180.0100.08320.68
5.5.160.0070.07720.84
5.5.150.0000.08020.59
5.5.140.0130.08320.92
5.5.130.0070.08320.70
5.5.120.0070.07320.72
5.5.110.0100.05320.89
5.5.100.0070.06320.54
5.5.90.0130.06320.69
5.5.80.0030.08320.79
5.5.70.0070.08320.57
5.5.60.0100.07320.57
5.5.50.0100.07720.75
5.5.40.0100.07020.58
5.5.30.0070.08720.79
5.5.20.0100.07720.52
5.5.10.0230.06320.68
5.5.00.0100.07320.64
5.4.450.0030.06319.80
5.4.440.0070.05719.80
5.4.430.0030.07719.80
5.4.420.0200.05719.79
5.4.410.0100.06019.68
5.4.400.0200.07019.47
5.4.390.0070.07719.46
5.4.380.0030.08019.46
5.4.370.0170.06719.51
5.4.360.0070.05019.48
5.4.350.0100.07319.47
5.4.340.0030.07719.39
5.4.320.0100.07319.51
5.4.310.0100.07319.39
5.4.300.0030.04719.45
5.4.290.0070.07019.76
5.4.280.0030.04019.57
5.4.270.0000.06019.45
5.4.260.0170.06719.48
5.4.250.0100.06719.57
5.4.240.0100.07719.66
5.4.230.0100.07019.59
5.4.220.0100.06719.66
5.4.210.0030.06719.49
5.4.200.0000.08019.59
5.4.190.0070.07719.39
5.4.180.0000.08019.49
5.4.170.0070.06019.39
5.4.160.0070.07319.46
5.4.150.0100.07019.37
5.4.140.0030.08016.74
5.4.130.0070.04716.93
5.4.120.0100.06716.91
5.4.110.0030.08016.73
5.4.100.0130.05716.96
5.4.90.0070.07317.04
5.4.80.0070.07316.80
5.4.70.0100.06016.88
5.4.60.0130.06716.95
5.4.50.0100.06716.91
5.4.40.0130.06716.83
5.4.30.0070.06317.00
5.4.20.0070.07316.84
5.4.10.0070.07016.93
5.4.00.0070.06316.20
5.3.290.0030.08015.20
5.3.280.0030.06715.35
5.3.270.0070.08015.20
5.3.260.0030.08015.23
5.3.250.0130.06715.31
5.3.240.0030.05015.17
5.3.230.0000.08315.23
5.3.220.0000.05315.11
5.3.210.0070.07315.27
5.3.200.0130.06715.05
5.3.190.0070.07015.19
5.3.180.0170.06015.27
5.3.170.0100.06715.13
5.3.160.0070.07715.20
5.3.150.0170.06715.35
5.3.140.0030.08015.30
5.3.130.0100.07315.34
5.3.120.0000.08715.13
5.3.110.0100.07015.25
5.3.100.0170.06714.51
5.3.90.0070.08014.66
5.3.80.0130.07014.58
5.3.70.0100.07714.80
5.3.60.0100.07714.78
5.3.50.0170.06714.70
5.3.40.0130.07314.54
5.3.30.0170.06714.49
5.3.20.0100.06014.32
5.3.10.0070.05014.35
5.3.00.0100.07014.07
5.2.170.0000.04011.70
5.2.160.0070.05011.70
5.2.150.0030.06711.70
5.2.140.0030.06711.70
5.2.130.0070.06011.70
5.2.120.0070.05711.70
5.2.110.0170.05311.70
5.2.100.0100.05711.70
5.2.90.0100.05311.70
5.2.80.0070.06011.70
5.2.70.0070.06311.70
5.2.60.0100.05011.70
5.2.50.0100.06011.70
5.2.40.0070.03711.70
5.2.30.0000.04711.70
5.2.20.0030.03711.70
5.2.10.0070.02711.70
5.2.00.0070.04311.70
5.1.60.0030.03311.70
5.1.50.0070.02311.70
5.1.40.0000.03711.70
5.1.30.0000.03311.70
5.1.20.0030.02711.70
5.1.10.0030.03011.70
5.1.00.0100.03711.70
5.0.50.0030.02011.70
5.0.40.0000.03311.70
5.0.30.0000.03311.70
5.0.20.0030.04011.70
5.0.10.0030.04311.70
5.0.00.0000.03311.70
4.4.90.0030.04011.70
4.4.80.0000.04311.70
4.4.70.0030.02011.70
4.4.60.0000.02011.70
4.4.50.0030.03011.70
4.4.40.0030.03311.70
4.4.30.0030.01711.70
4.4.20.0030.01711.70
4.4.10.0000.02011.70
4.4.00.0000.02711.70
4.3.110.0030.02311.70
4.3.100.0030.02711.70
4.3.90.0000.01711.70
4.3.80.0030.05011.70
4.3.70.0000.01711.70
4.3.60.0070.03711.70
4.3.50.0030.03011.70
4.3.40.0070.03311.70
4.3.30.0000.02011.70
4.3.20.0000.02311.70
4.3.10.0000.02011.70
4.3.00.0000.02011.70

preferences:
40.2 ms | 401 KiB | 5 Q