3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ['a'=>1, 'b'=>3, 'c'=>5]; $y = array_merge($x, ['a'=>2, 'b'=>4]); var_dump($y);

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)
8.3.60.0070.01418.14
8.3.50.0160.01122.04
8.3.40.0100.01018.56
8.3.30.0100.00318.84
8.3.20.0000.00720.16
8.3.10.0080.00021.95
8.3.00.0000.00822.52
8.2.180.0070.00716.75
8.2.170.0180.00422.96
8.2.160.0060.00920.74
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00717.37
8.2.110.0070.00321.08
8.2.100.0080.00417.78
8.2.90.0000.00818.89
8.2.80.0030.00617.97
8.2.70.0030.00617.50
8.2.60.0030.00617.93
8.2.50.0080.00018.10
8.2.40.0060.00318.09
8.2.30.0030.00517.98
8.2.20.0000.00917.58
8.2.10.0040.00417.63
8.2.00.0000.00717.53
8.1.280.0070.00725.92
8.1.270.0030.00623.99
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0030.00722.81
8.1.230.0110.00017.42
8.1.220.0050.00317.79
8.1.210.0090.00018.77
8.1.200.0080.00017.23
8.1.190.0040.00417.23
8.1.180.0080.00018.10
8.1.170.0030.00518.50
8.1.160.0000.00721.98
8.1.150.0070.00018.61
8.1.140.0040.00417.38
8.1.130.0080.00017.79
8.1.120.0070.00017.37
8.1.110.0070.00017.41
8.1.100.0040.00417.29
8.1.90.0070.00017.40
8.1.80.0040.00417.38
8.1.70.0030.00317.36
8.1.60.0110.00017.49
8.1.50.0080.00017.35
8.1.40.0040.00417.38
8.1.30.0000.00717.54
8.1.20.0050.00317.51
8.1.10.0030.00617.32
8.1.00.0090.00017.46
8.0.300.0000.00718.77
8.0.290.0040.00416.58
8.0.280.0000.00718.38
8.0.270.0070.00017.03
8.0.260.0030.00316.78
8.0.250.0060.00016.83
8.0.240.0000.00716.89
8.0.230.0000.00716.77
8.0.220.0070.00016.73
8.0.210.0030.00316.77
8.0.200.0000.00816.92
8.0.190.0000.00816.87
8.0.180.0030.00716.84
8.0.170.0070.00016.82
8.0.160.0040.00416.89
8.0.150.0030.00516.78
8.0.140.0000.00816.67
8.0.130.0050.00013.23
8.0.120.0000.00816.80
8.0.110.0050.00216.81
8.0.100.0080.00016.73
8.0.90.0000.00716.83
8.0.80.0030.01316.78
8.0.70.0030.00316.80
8.0.60.0000.00716.84
8.0.50.0000.00716.83
8.0.30.0120.00617.04
8.0.20.0160.00617.40
8.0.10.0070.00016.76
8.0.00.0120.00716.60
7.4.330.0020.00215.00
7.4.320.0030.00316.54
7.4.300.0060.00016.44
7.4.290.0000.00716.42
7.4.280.0030.00316.51
7.4.270.0030.00316.48
7.4.260.0040.00416.54
7.4.250.0040.00416.29
7.4.240.0000.00716.43
7.4.230.0070.00016.40
7.4.220.0040.01316.61
7.4.210.0080.01216.45
7.4.200.0070.00016.28
7.4.190.0030.00316.29
7.4.160.0000.01516.19
7.4.150.0190.00017.40
7.4.140.0080.00817.86
7.4.130.0100.01016.42
7.4.120.0090.00816.33
7.4.110.0040.01316.51
7.4.100.0140.00316.30
7.4.90.0120.01216.30
7.4.80.0090.00919.39
7.4.70.0110.00716.39
7.4.60.0070.01616.35
7.4.50.0030.00616.25
7.4.40.0030.01322.77
7.4.30.0100.01316.49
7.4.00.0100.00314.95
7.3.330.0070.00012.87
7.3.320.0050.00012.85
7.3.310.0030.00316.17
7.3.300.0060.00016.03
7.3.290.0070.00716.23
7.3.280.0080.00916.17
7.3.270.0070.01017.40
7.3.260.0110.00716.08
7.3.250.0100.00916.14
7.3.240.0110.00716.14
7.3.230.0060.01316.41
7.3.210.0090.00916.16
7.3.200.0120.00419.39
7.3.190.0070.01116.36
7.3.180.0130.00316.10
7.3.170.0090.00916.27
7.3.160.0060.01716.39
7.3.120.0030.01014.64
7.2.330.0110.00716.60
7.2.320.0170.00616.53
7.2.310.0180.00016.25
7.2.300.0090.01216.48
7.2.290.0090.00616.45
7.2.00.0090.00619.45
7.1.100.0080.00418.21
7.1.70.0000.01016.75
7.1.60.0140.01119.82
7.1.50.0100.01316.57
7.1.00.0000.08022.31
7.0.200.0070.00416.77
7.0.140.0070.07022.15
7.0.60.0270.06719.85
7.0.50.0030.04017.66
7.0.40.0070.04019.95
7.0.30.0330.05020.09
7.0.20.0230.04320.09
7.0.10.0300.07319.99
7.0.00.0100.09020.33
5.6.280.0030.07321.04
5.6.210.0170.06320.68
5.6.200.0000.08718.17
5.6.190.0070.04020.66
5.6.180.0230.04020.58
5.6.170.0300.06020.61
5.6.160.0030.08720.45
5.6.150.0030.07718.18
5.6.140.0130.07318.21
5.6.130.0130.07718.21
5.6.120.0030.04021.01
5.6.110.0070.05721.10
5.6.100.0070.05321.10
5.6.90.0100.07320.99
5.6.80.0130.07320.39
5.5.350.0000.06320.37
5.5.340.0170.06318.02
5.5.330.0100.07320.43
5.5.320.0000.07320.38
5.5.310.0170.04720.29
5.5.300.0100.05318.01
5.5.290.0100.05717.87
5.5.280.0130.07720.79
5.5.270.0000.04720.78
5.5.260.0070.07320.71
5.5.250.0030.08720.57
5.5.240.0100.07720.26
5.4.450.0830.05319.13
5.4.440.0530.05019.47
5.4.430.0730.04319.49
5.4.420.1170.07019.46
5.4.410.0800.06019.39
5.4.400.1070.04718.76
5.4.390.0970.05718.73
5.4.380.0100.06718.63
5.4.370.0100.04718.57
5.4.360.0070.04018.54
5.4.350.0030.04011.97
5.4.340.0040.03611.97
5.4.320.0060.03812.45
5.4.310.0080.04612.45
5.4.300.0090.04312.45
5.4.290.0060.03812.45
5.4.280.0050.03712.34
5.4.270.0060.03712.34
5.4.260.0060.04112.35
5.4.250.0040.03912.35
5.4.240.0080.03612.34
5.4.230.0040.04612.34
5.4.220.0050.03812.34
5.4.210.0110.03812.34
5.4.200.0100.04312.34
5.4.190.0090.03312.34
5.4.180.0060.03612.34
5.4.170.0070.05719.07
5.4.160.0100.05718.93
5.4.150.0100.07319.02
5.4.140.0030.06016.40
5.4.130.0070.04716.30
5.4.120.0200.06716.43
5.4.110.0170.04316.53
5.4.100.0200.04016.36
5.4.90.0030.05716.45
5.4.80.0070.05016.40
5.4.70.0100.04716.55
5.4.60.0100.04716.50
5.4.50.0100.04716.26
5.4.40.0030.05316.55
5.4.30.0100.05316.32
5.4.20.0230.05316.32
5.4.10.0100.05016.26
5.4.00.0170.05015.65
5.3.290.0090.04612.80
5.3.280.0060.04612.71
5.3.270.0130.05014.59
5.3.260.0070.05314.60
5.3.250.0170.04314.59
5.3.240.0070.05314.67
5.3.230.0100.05014.53
5.3.220.0070.08014.68
5.3.210.0230.05014.36
5.3.200.0200.04314.55
5.3.190.0130.04714.63
5.3.180.0070.08014.72
5.3.170.0070.05014.71
5.3.160.0170.05714.61
5.3.150.0070.05314.55
5.3.140.0070.05714.70
5.3.130.0130.05014.66
5.3.120.0200.04314.71
5.3.110.0130.06314.69
5.3.100.0100.04713.93
5.3.90.0130.06714.11
5.3.80.0100.06014.06
5.3.70.0170.06013.95
5.3.60.0030.07014.09
5.3.50.0030.05014.01
5.3.40.0100.05714.02
5.3.30.0070.05314.00
5.3.20.0130.05013.68
5.3.10.0200.04013.58
5.3.00.0130.04313.80
5.2.170.0030.06311.37
5.2.160.0070.04011.24
5.2.150.0030.05711.27
5.2.140.0100.05710.95
5.2.130.0000.05311.11
5.2.120.0000.04711.25
5.2.110.0070.04011.08
5.2.100.0030.04311.02
5.2.90.0030.04311.08
5.2.80.0070.04311.21
5.2.70.0230.03711.22
5.2.60.0030.04311.03
5.2.50.0070.04010.83
5.2.40.0130.04710.98
5.2.30.0100.05311.20
5.2.20.0070.05011.09
5.2.10.0030.04010.73
5.2.00.0130.03310.86
5.1.60.0070.0339.96
5.1.50.0070.04310.29
5.1.40.0130.03710.18
5.1.30.0070.05010.38
5.1.20.0100.03710.41
5.1.10.0070.04310.04
5.1.00.0070.03710.19
5.0.50.0100.0308.42
5.0.40.0030.0278.39
5.0.30.0000.0508.30
5.0.20.0130.0308.44
5.0.10.0030.0378.37
5.0.00.0100.0538.23
4.4.90.0030.0237.48
4.4.80.0030.0277.48
4.4.70.0000.0307.48
4.4.60.0030.0337.48
4.4.50.0000.0337.48
4.4.40.0000.0407.48
4.4.30.0070.0207.48
4.4.20.0000.0307.48
4.4.10.0070.0277.48
4.4.00.0000.0407.48
4.3.110.0070.0307.48
4.3.100.0070.0177.48
4.3.90.0100.0177.48
4.3.80.0070.0437.48
4.3.70.0070.0277.48
4.3.60.0070.0177.48
4.3.50.0000.0237.48
4.3.40.0030.0437.48
4.3.30.0070.0177.48
4.3.20.0030.0237.48
4.3.10.0030.0277.48
4.3.00.0030.0206.78

preferences:
42.94 ms | 400 KiB | 5 Q