3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = [0, 1, 2]; $y = $x; $y[] = 3; var_dump(head($x), head($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)
8.3.60.0110.00716.59
8.3.50.0120.00721.21
8.3.40.0040.01118.67
8.3.30.0120.00318.75
8.3.20.0090.00020.12
8.3.10.0040.00423.52
8.3.00.0000.00919.32
8.2.180.0110.00416.86
8.2.170.0070.00722.96
8.2.160.0140.00022.14
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00417.50
8.2.120.0000.00826.35
8.2.110.0030.00620.35
8.2.100.0120.00017.93
8.2.90.0060.00319.24
8.2.80.0030.00517.97
8.2.70.0040.00417.63
8.2.60.0040.00418.04
8.2.50.0030.00618.07
8.2.40.0040.00419.39
8.2.30.0000.00720.71
8.2.20.0030.00717.66
8.2.10.0050.00318.03
8.2.00.0040.00418.17
8.1.280.0130.00325.92
8.1.270.0040.00423.87
8.1.260.0070.00028.09
8.1.250.0080.00028.09
8.1.240.0090.00023.96
8.1.230.0040.00719.57
8.1.220.0030.00517.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0000.00817.23
8.1.180.0050.00318.10
8.1.170.0000.00718.70
8.1.160.0000.00721.86
8.1.150.0000.00818.81
8.1.140.0000.00819.42
8.1.130.0030.00317.61
8.1.120.0040.00417.41
8.1.110.0040.00417.36
8.1.100.0070.00017.36
8.1.90.0000.00717.42
8.1.80.0000.00717.32
8.1.70.0050.00217.39
8.1.60.0000.00817.49
8.1.50.0040.00417.44
8.1.40.0050.00317.50
8.1.30.0040.00417.69
8.1.20.0040.00417.50
8.1.10.0000.00817.48
8.1.00.0060.00617.54
8.0.300.0000.00818.84
8.0.290.0070.00016.63
8.0.280.0000.00718.24
8.0.270.0030.00317.18
8.0.260.0040.00417.14
8.0.250.0030.00316.95
8.0.240.0000.00816.96
8.0.230.0000.00816.83
8.0.220.0040.00416.90
8.0.210.0000.00716.80
8.0.200.0000.00616.95
8.0.190.0040.00417.00
8.0.180.0000.00816.90
8.0.170.0070.00316.85
8.0.160.0030.00316.86
8.0.150.0030.00316.95
8.0.140.0040.00416.87
8.0.130.0030.00313.27
8.0.120.0080.00016.88
8.0.110.0000.00716.79
8.0.100.0070.00016.76
8.0.90.0030.00316.92
8.0.80.0060.01116.86
8.0.70.0080.00316.73
8.0.60.0040.00416.94
8.0.50.0070.00016.77
8.0.30.0100.00817.08
8.0.20.0120.00617.40
8.0.10.0030.00516.88
8.0.00.0090.00816.62
7.4.330.0020.00216.83
7.4.320.0040.00416.36
7.4.300.0030.00316.48
7.4.290.0050.00216.55
7.4.280.0000.00716.54
7.4.270.0030.00316.52
7.4.260.0070.00016.57
7.4.250.0050.00316.45
7.4.240.0020.00616.56
7.4.230.0030.00316.38
7.4.220.0150.01216.43
7.4.210.0030.01016.39
7.4.200.0030.00316.38
7.4.160.0060.00916.41
7.4.150.0140.00317.40
7.4.140.0130.01017.86
7.4.130.0130.00516.52
7.4.120.0050.01216.41
7.4.110.0080.00816.40
7.4.100.0090.01316.46
7.4.90.0100.00716.41
7.4.80.0120.00619.39
7.4.70.0130.00316.73
7.4.60.0080.00916.66
7.4.50.0000.01516.67
7.4.40.0040.01216.43
7.4.30.0000.01816.53
7.4.00.0060.00914.87
7.3.330.0020.00213.22
7.3.320.0000.00513.23
7.3.310.0030.00316.39
7.3.300.0070.00016.27
7.3.290.0090.00816.29
7.3.280.0100.00816.30
7.3.270.0090.00917.40
7.3.260.0030.01416.36
7.3.250.0170.00216.47
7.3.240.0090.01016.35
7.3.230.0100.01016.39
7.3.210.0090.00816.41
7.3.200.0100.01216.63
7.3.190.0120.00616.27
7.3.180.0060.00916.56
7.3.170.0040.01816.28
7.3.160.0080.01216.27
7.2.330.0100.00716.66
7.2.320.0030.01716.26
7.2.310.0120.00816.40
7.2.300.0100.01016.66
7.2.290.0150.00316.68
7.2.60.0030.00716.89
7.1.200.0030.00615.66
7.1.70.0000.00717.00
7.1.60.0030.02019.48
7.1.50.0040.01816.99
7.1.00.0170.06322.37
7.0.200.0150.00414.83
7.0.60.0130.07720.00
7.0.50.0130.07717.89
7.0.40.0100.06320.03
7.0.30.0300.07320.18
7.0.20.0330.08020.13
7.0.10.0100.07320.00
7.0.00.0030.09020.00
5.6.280.0030.03320.78
5.6.210.0130.07320.60
5.6.200.0100.08018.07
5.6.190.0070.07320.28
5.6.180.0270.08720.39
5.6.170.0270.04020.38
5.6.160.0070.04320.34
5.6.150.0100.07018.21
5.6.140.0100.07718.18
5.6.130.0030.04018.12
5.6.120.0070.05721.04
5.6.110.0070.09021.02
5.6.100.0200.06720.97
5.6.90.0200.07020.99
5.6.80.0130.07720.37
5.5.350.3230.03720.32
5.5.340.0200.03717.98
5.5.330.0070.08320.36
5.5.320.0030.08020.32
5.5.310.0170.04320.46
5.5.300.0170.06718.01
5.5.290.0100.03718.02
5.5.280.0070.08320.82
5.5.270.0100.07720.88
5.5.260.0070.04320.66
5.5.250.0100.07020.49
5.5.240.0230.04720.02

preferences:
42.57 ms | 401 KiB | 5 Q