3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a'=>'b'); $b = array('a'=>'c'); $c = array_merge($a, $b); print_r($c);

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)
8.3.60.0130.00718.30
8.3.50.0110.00722.04
8.3.40.0090.00918.84
8.3.30.0060.00918.84
8.3.20.0050.00320.12
8.3.10.0040.00423.48
8.3.00.0050.00319.13
8.2.180.0170.00316.38
8.2.170.0070.01322.96
8.2.160.0000.01320.47
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0070.00026.16
8.2.120.0070.00022.19
8.2.110.0030.00620.57
8.2.100.0100.00318.03
8.2.90.0000.00819.27
8.2.80.0000.00817.97
8.2.70.0050.00517.50
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0030.00619.93
8.2.30.0000.00817.99
8.2.20.0040.00417.70
8.2.10.0070.00017.93
8.2.00.0040.00417.68
8.1.280.0180.00025.92
8.1.270.0050.00322.19
8.1.260.0070.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00023.83
8.1.230.0100.00019.09
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.10
8.1.190.0050.00317.00
8.1.180.0040.00418.10
8.1.170.0000.00818.59
8.1.160.0040.00421.99
8.1.150.0050.00318.73
8.1.140.0040.00417.33
8.1.130.0040.00417.85
8.1.120.0050.00217.27
8.1.110.0050.00317.33
8.1.100.0040.00417.30
8.1.90.0070.00017.32
8.1.80.0000.00717.38
8.1.70.0070.00017.36
8.1.60.0000.00817.50
8.1.50.0040.00417.32
8.1.40.0030.00817.43
8.1.30.0050.00317.47
8.1.20.0040.00417.58
8.1.10.0040.00417.41
8.1.00.0000.00717.23
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0030.00318.27
8.0.270.0030.00317.14
8.0.260.0000.00617.18
8.0.250.0000.00616.83
8.0.240.0050.00316.88
8.0.230.0070.00016.77
8.0.220.0030.00316.70
8.0.210.0040.00416.73
8.0.200.0000.00716.89
8.0.190.0000.01016.77
8.0.180.0000.00816.74
8.0.170.0050.00216.70
8.0.160.0060.00316.88
8.0.150.0030.00316.77
8.0.140.0000.00916.80
8.0.130.0060.00013.29
8.0.120.0090.00016.83
8.0.110.0070.00016.80
8.0.100.0040.00416.88
8.0.90.0000.00816.64
8.0.80.0040.01216.82
8.0.70.0040.00416.84
8.0.60.0000.00816.86
8.0.50.0040.00416.70
8.0.30.0110.00716.95
8.0.20.0120.00617.40
8.0.10.0030.00616.98
8.0.00.0050.01216.79
7.4.330.0000.00515.00
7.4.320.0060.00016.50
7.4.300.0050.00216.43
7.4.290.0070.00016.38
7.4.280.0070.00016.53
7.4.270.0040.00416.50
7.4.260.0040.00316.44
7.4.250.0040.00416.48
7.4.240.0020.00516.37
7.4.230.0000.00716.51
7.4.220.0060.01216.52
7.4.210.0000.01416.48
7.4.200.0000.00716.43
7.4.160.0000.01716.60
7.4.150.0090.00917.40
7.4.140.0120.00817.86
7.4.130.0100.00716.23
7.4.120.0080.01016.42
7.4.110.0070.01016.37
7.4.100.0090.00616.23
7.4.90.0070.01016.62
7.4.80.0060.01219.39
7.4.70.0030.01316.32
7.4.60.0090.00616.29
7.4.50.0000.00816.29
7.4.40.0110.00516.38
7.4.30.0160.00716.43
7.4.00.0000.01415.07
7.3.330.0020.00213.12
7.3.320.0040.00212.97
7.3.310.0000.00716.21
7.3.300.0060.00016.03
7.3.290.0060.01016.17
7.3.280.0080.00916.12
7.3.270.0080.01117.40
7.3.260.0090.00916.18
7.3.250.0120.00916.16
7.3.240.0080.01116.15
7.3.230.0130.00316.50
7.3.210.0030.01216.34
7.3.200.0050.01019.39
7.3.190.0080.01216.34
7.3.180.0100.00616.25
7.3.170.0090.00616.39
7.3.160.0120.00316.13
7.3.10.0120.00316.39
7.3.00.0030.01016.49
7.2.330.0140.00316.23
7.2.320.0120.00916.43
7.2.310.0030.01416.49
7.2.300.0070.01016.35
7.2.290.0070.01016.34
7.2.130.0000.01416.79
7.2.120.0000.01516.90
7.2.110.0000.01316.83
7.2.100.0040.00416.81
7.2.90.0040.00816.75
7.2.80.0070.00516.63
7.2.70.0070.00316.75
7.2.60.0000.01316.73
7.2.50.0060.01116.80
7.2.40.0080.00816.57
7.2.30.0040.01116.77
7.2.20.0110.00616.91
7.2.10.0070.00416.56
7.2.00.0080.00517.71
7.1.250.0040.00415.86
7.1.200.0000.01315.41
7.1.100.0030.00718.02
7.1.70.0060.00617.09
7.1.60.0230.00319.32
7.1.50.0030.01016.90
7.1.00.0070.07322.44
7.0.200.0050.00316.59
7.0.140.0000.07722.06
7.0.60.0030.08319.82
7.0.50.0000.08317.88
7.0.40.0030.04320.08
7.0.30.0470.06020.06
7.0.20.0200.05320.18
7.0.10.0070.07720.09
7.0.00.0130.06720.08
5.6.280.0000.07721.09
5.6.210.0070.08720.50
5.6.200.0000.08018.16
5.6.190.0030.06020.61
5.6.180.0370.06320.35
5.6.170.0330.07720.33
5.6.160.0070.04020.46
5.6.150.0030.04018.21
5.6.140.0170.07318.21
5.6.130.0130.06318.11
5.6.120.0030.09020.92
5.6.110.0200.06321.04
5.6.100.0130.06720.97
5.6.90.0130.07320.98
5.6.80.0070.07320.37
5.5.350.0170.07320.33
5.5.340.0200.05317.92
5.5.330.0000.04320.40
5.5.320.0430.07320.29
5.5.310.0230.08320.21
5.5.300.0070.07317.98
5.5.290.0030.08017.90
5.5.280.0100.08720.76
5.5.270.0100.03320.59
5.5.260.0130.07720.86
5.5.250.0130.07320.54
5.5.240.0270.06320.26
5.4.450.0800.06019.41
5.4.440.0170.05319.59
5.4.430.1030.06019.25
5.4.420.0630.00019.31
5.4.410.0670.00019.04
5.4.400.0670.00019.20
5.4.390.0770.00019.05
5.4.380.0700.00018.95
5.4.370.0630.00019.08
5.4.360.0600.00019.13
5.4.350.0630.00019.16
5.4.340.0050.03611.97
5.4.320.0050.03612.45
5.4.310.0060.04312.45
5.4.300.0050.03812.45
5.4.290.0030.04012.45
5.4.280.0060.03412.35
5.4.270.0070.03812.34
5.4.260.0100.03212.34
5.4.250.0080.03712.34
5.4.240.0050.03812.35
5.4.230.0070.04512.34
5.4.220.0060.04112.34
5.4.210.0040.04112.34
5.4.200.0050.03812.34
5.4.190.0080.04112.33
5.4.180.0080.03712.34
5.4.170.0060.03512.35
5.4.160.0050.03712.34
5.4.150.0050.03712.34
5.4.140.0060.04012.02
5.4.130.0060.03512.01
5.4.120.0040.04111.96
5.4.110.0070.03911.96
5.4.100.0090.04111.96
5.4.90.0090.04111.96
5.4.80.0080.03511.96
5.4.70.0050.03511.96
5.4.60.0050.03411.96
5.4.50.0060.03511.96
5.4.40.0090.03311.95
5.4.30.0050.03811.95
5.4.20.0070.03811.95
5.4.10.0120.03611.95
5.4.00.0070.03511.44
5.3.290.0050.04512.80
5.3.280.0080.03512.71
5.3.270.0060.04112.72
5.3.260.0070.03712.72
5.3.250.0060.04112.72
5.3.240.0050.03712.72
5.3.230.0070.03512.71
5.3.220.0060.04312.68
5.3.210.0070.03612.68
5.3.200.0060.04112.68
5.3.190.0100.03612.68
5.3.180.0040.03712.67
5.3.170.0040.03812.67
5.3.160.0070.03612.67
5.3.150.0090.03212.68
5.3.140.0080.03312.66
5.3.130.0060.03912.66
5.3.120.0050.03812.66
5.3.110.0050.03812.66
5.3.100.0080.03312.11
5.3.90.0080.03312.08
5.3.80.0040.03712.08
5.3.70.0070.03512.07
5.3.60.0070.03512.06
5.3.50.0010.04012.00
5.3.40.0050.03712.00
5.3.30.0040.03611.94
5.3.20.0070.03511.72
5.3.10.0090.03111.69
5.3.00.0080.03211.68
5.2.170.0040.0309.18
5.2.160.0040.0339.18
5.2.150.0070.0319.18
5.2.140.0060.0319.17
5.2.130.0060.0349.13
5.2.120.0060.0279.13
5.2.110.0060.0339.14
5.2.100.0060.0269.14
5.2.90.0060.0289.14
5.2.80.0050.0309.14
5.2.70.0050.0369.13
5.2.60.0050.0309.09
5.2.50.0080.0359.05
5.2.40.0040.0299.03
5.2.30.0040.0339.01
5.2.20.0020.0309.00
5.2.10.0060.0268.93
5.2.00.0090.0258.78
5.1.60.0040.0238.06
5.1.50.0040.0268.05
5.1.40.0050.0328.04
5.1.30.0060.0308.39
5.1.20.0050.0268.41
5.1.10.0030.0268.13
5.1.00.0050.0248.13
5.0.50.0050.0196.62
5.0.40.0040.0186.47
5.0.30.0060.0336.29
5.0.20.0030.0256.26
5.0.10.0040.0186.24
5.0.00.0040.0296.23
4.4.90.0030.0144.78
4.4.80.0010.0164.76
4.4.70.0010.0174.75
4.4.60.0040.0144.76
4.4.50.0020.0164.77
4.4.40.0020.0294.71
4.4.30.0030.0154.76
4.4.20.0030.0174.85
4.4.10.0040.0184.85
4.4.00.0040.0284.75
4.3.110.0010.0174.67
4.3.100.0020.0154.66
4.3.90.0030.0164.63
4.3.80.0030.0284.58
4.3.70.0020.0154.63
4.3.60.0030.0224.63
4.3.50.0020.0164.63
4.3.40.0060.0264.54
4.3.30.0030.0143.29
4.3.20.0010.0193.26
4.3.10.0000.0173.21
4.3.00.0170.0307.42

preferences:
44.73 ms | 401 KiB | 5 Q