3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('0'=>'c'); $b = array('1'=>'e'); print_r(array_merge($a,$b));

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)
8.3.40.0100.01018.67
8.3.30.0110.00618.91
8.3.20.0040.00420.04
8.3.10.0080.00022.10
8.3.00.0040.00422.43
8.2.170.0140.00722.96
8.2.160.0080.00620.95
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00019.26
8.2.110.0060.00322.24
8.2.100.0060.00617.59
8.2.90.0000.00719.27
8.2.80.0000.00817.97
8.2.70.0070.00317.38
8.2.60.0060.00317.93
8.2.50.0080.00418.07
8.2.40.0050.00217.97
8.2.30.0060.00317.86
8.2.20.0070.00017.46
8.2.10.0040.00417.64
8.2.00.0040.00417.53
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0140.00328.09
8.1.240.0090.00023.73
8.1.230.0030.00719.10
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00717.22
8.1.190.0050.00317.30
8.1.180.0080.00018.10
8.1.170.0050.00318.36
8.1.160.0020.00521.85
8.1.150.0000.00718.56
8.1.140.0000.00717.33
8.1.130.0000.00717.81
8.1.120.0040.00417.30
8.1.110.0070.00017.36
8.1.100.0030.00317.29
8.1.90.0040.00417.35
8.1.80.0070.00017.35
8.1.70.0030.00317.32
8.1.60.0030.00617.52
8.1.50.0030.00517.47
8.1.40.0090.00017.43
8.1.30.0030.00517.54
8.1.20.0040.00417.45
8.1.10.0030.00517.41
8.1.00.0030.00517.22
8.0.300.0030.00318.77
8.0.290.0000.00817.05
8.0.280.0030.00318.43
8.0.270.0060.00317.20
8.0.260.0030.00316.63
8.0.250.0070.00016.93
8.0.240.0000.00716.89
8.0.230.0070.00016.88
8.0.220.0000.00716.80
8.0.210.0070.00016.77
8.0.200.0030.00316.89
8.0.190.0000.01016.86
8.0.180.0040.00416.74
8.0.170.0000.00716.80
8.0.160.0050.00216.76
8.0.150.0070.00016.73
8.0.140.0040.00416.79
8.0.130.0000.00613.20
8.0.120.0030.00516.83
8.0.110.0000.00816.68
8.0.100.0000.00716.64
8.0.90.0000.00716.87
8.0.80.0090.00616.69
8.0.70.0000.00716.68
8.0.60.0040.00416.69
8.0.50.0030.00516.77
8.0.30.0070.01216.92
8.0.20.0120.00617.40
8.0.10.0040.00416.87
8.0.00.0060.01316.66
7.4.330.0050.00015.00
7.4.320.0030.00316.35
7.4.300.0030.00316.52
7.4.290.0000.00716.53
7.4.280.0020.00516.56
7.4.270.0070.00016.43
7.4.260.0000.00716.52
7.4.250.0000.00816.55
7.4.240.0030.00416.46
7.4.230.0000.00616.41
7.4.220.0040.01816.55
7.4.210.0070.00616.57
7.4.200.0030.00316.33
7.4.190.0000.00716.48
7.4.160.0110.01116.53
7.4.150.0210.00017.40
7.4.140.0120.00517.86
7.4.130.0090.00916.29
7.4.120.0100.00716.35
7.4.110.0130.00316.51
7.4.100.0100.01016.37
7.4.90.0060.01116.40
7.4.80.0090.00919.39
7.4.70.0080.00816.22
7.4.60.0120.00416.52
7.4.50.0040.00416.59
7.4.40.0060.00922.77
7.4.30.0060.00916.38
7.4.00.0030.01415.09
7.3.330.0000.00612.97
7.3.320.0000.00512.87
7.3.310.0000.00715.97
7.3.300.0050.00216.11
7.3.290.0080.00816.18
7.3.280.0090.00816.14
7.3.270.0140.00317.40
7.3.260.0100.00616.20
7.3.250.0050.01216.37
7.3.240.0060.01016.16
7.3.230.0060.00916.39
7.3.210.0060.01316.30
7.3.200.0030.01519.39
7.3.190.0070.01016.37
7.3.180.0100.00716.32
7.3.170.0110.00516.28
7.3.160.0060.01316.53
7.3.120.0100.00714.68
7.3.10.0120.00316.33
7.3.00.0040.01116.52
7.2.330.0180.00416.09
7.2.320.0050.01416.47
7.2.310.0140.00416.43
7.2.300.0120.00616.54
7.2.290.0140.00916.26
7.2.130.0110.00416.41
7.2.120.0030.01016.20
7.2.110.0030.01016.52
7.2.100.0040.00816.51
7.2.90.0030.00616.34
7.2.80.0070.00716.64
7.2.70.0050.00516.18
7.2.60.0110.00016.57
7.2.50.0090.00616.27
7.2.40.0030.00916.39
7.2.30.0030.00616.68
7.2.20.0130.00016.73
7.2.10.0040.00516.51
7.2.00.0070.00716.92
7.1.250.0060.00315.37
7.1.70.0050.00517.10
7.1.60.0130.01019.82
7.1.50.0030.01216.81
7.1.00.0030.06722.57
7.0.200.0130.00916.67
7.0.140.0000.07721.95
7.0.60.0070.08719.91
7.0.50.0030.08717.85
7.0.40.0070.05020.13
7.0.30.0300.03720.37
7.0.20.0130.04320.21
7.0.10.0200.08720.24
7.0.00.0070.07320.19
5.6.280.0030.07020.86
5.6.210.0070.08320.52
5.6.200.0000.05018.19
5.6.190.0030.05020.60
5.6.180.0230.08020.47
5.6.170.0270.07720.54
5.6.160.0230.05320.43
5.6.150.0100.08018.21
5.6.140.0030.05318.18
5.6.130.0130.06018.15
5.6.120.0070.04021.14
5.6.110.0100.06021.00
5.6.100.0100.08020.88
5.6.90.0230.07020.96
5.6.80.0130.07020.43
5.6.70.0070.07020.49
5.5.350.0300.07020.37
5.5.340.0100.07318.09
5.5.330.0070.08720.29
5.5.320.0200.07320.23
5.5.310.0300.06020.24
5.5.300.0030.08018.00
5.5.290.0100.04317.98
5.5.280.0030.04020.76
5.5.270.0030.08720.75
5.5.260.0100.07020.72
5.5.250.0000.04320.45
5.5.240.0070.07320.14
5.4.450.0800.06019.70
5.4.440.0170.05319.47
5.4.430.0800.06319.69
5.4.420.1370.06019.60
5.4.410.0170.05319.35
5.4.400.0930.05018.87
5.4.390.0800.05018.68
5.4.380.0200.05018.75
5.4.370.0030.05318.48
5.4.360.0070.05018.78
5.4.350.0070.04912.00
5.4.340.0070.04212.00
5.4.320.0020.04012.48
5.4.310.0100.05612.47
5.4.300.0050.04212.48
5.4.290.0100.03412.47
5.4.280.0100.03412.34
5.4.270.0070.03512.34
5.4.260.0070.03612.34
5.4.250.0060.03812.34
5.4.240.0060.03812.34
5.4.230.0070.03512.33
5.4.220.0030.03812.34
5.4.210.0060.03512.33
5.4.200.0050.04212.34
5.4.190.0060.03612.33
5.4.180.0090.03712.33
5.4.170.0060.03912.34
5.4.160.0090.03212.34
5.4.150.0060.03512.33
5.4.140.0040.03812.01
5.4.130.0060.03812.00
5.4.120.0070.03611.96
5.4.110.0040.03811.96
5.4.100.0030.03811.96
5.4.90.0030.04011.96
5.4.80.0040.03911.96
5.4.70.0040.03611.95
5.4.60.0080.03611.95
5.4.50.0080.04511.95
5.4.40.0070.03411.94
5.4.30.0090.04311.94
5.4.20.0050.03611.94
5.4.10.0050.03611.93
5.4.00.0060.03511.43
5.3.290.0070.03812.80
5.3.280.0040.03812.71
5.3.270.0050.03912.72
5.3.260.0050.03912.72
5.3.250.0070.03712.72
5.3.240.0050.03812.72
5.3.230.0050.03812.71
5.3.220.0070.04012.68
5.3.210.0040.04112.68
5.3.200.0050.04412.68
5.3.190.0110.03612.68
5.3.180.0060.04112.67
5.3.170.0040.03812.67
5.3.160.0070.03512.68
5.3.150.0040.03912.68
5.3.140.0040.03812.66
5.3.130.0090.05212.66
5.3.120.0040.03912.66
5.3.110.0090.04112.66
5.3.100.0020.04512.12
5.3.90.0080.04512.08
5.3.80.0110.03612.08
5.3.70.0070.04712.07
5.3.60.0050.03712.06
5.3.50.0080.04312.00
5.3.40.0070.04612.00
5.3.30.0080.03211.96
5.3.20.0060.03511.72
5.3.10.0050.03611.68
5.3.00.0050.03711.67
5.2.170.0080.0279.17
5.2.160.0060.0289.18
5.2.150.0120.0269.17
5.2.140.0060.0289.17
5.2.130.0050.0289.13
5.2.120.0030.0299.13
5.2.110.0060.0279.13
5.2.100.0040.0309.14
5.2.90.0020.0339.14
5.2.80.0060.0309.13
5.2.70.0050.0399.12
5.2.60.0050.0309.08
5.2.50.0060.0289.05
5.2.40.0070.0309.03
5.2.30.0030.0359.00
5.2.20.0030.0308.99
5.2.10.0030.0298.90
5.2.00.0070.0268.76
5.1.60.0050.0248.03
5.1.50.0030.0258.03
5.1.40.0050.0278.02
5.1.30.0010.0308.36
5.1.20.0030.0288.39
5.1.10.0020.0288.11
5.1.00.0030.0278.11
5.0.50.0060.0196.58
5.0.40.0040.0196.45
5.0.30.0050.0316.26
5.0.20.0060.0216.23
5.0.10.0080.0296.21
5.0.00.0050.0356.20
4.4.90.0040.0154.78
4.4.80.0030.0164.75
4.4.70.0030.0194.75
4.4.60.0020.0204.76
4.4.50.0040.0154.77
4.4.40.0040.0254.71
4.4.30.0030.0164.75
4.4.20.0070.0124.84
4.4.10.0030.0174.85
4.4.00.0020.0284.75
4.3.110.0030.0224.67
4.3.100.0060.0264.67
4.3.90.0040.0264.64
4.3.80.0060.0344.58
4.3.70.0020.0244.63
4.3.60.0040.0244.63
4.3.50.0040.0194.63
4.3.40.0070.0334.54
4.3.30.0050.0203.27
4.3.20.0030.0183.25
4.3.10.0000.0193.21
4.3.00.0130.0206.79

preferences:
42.15 ms | 400 KiB | 5 Q