3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3); $b = &$a; foreach($a as $key => $v) { echo "$v\n"; if ($key === 0) unset($a[1]); }

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)
8.3.60.0070.01116.50
8.3.50.0120.00921.99
8.3.40.0110.00418.54
8.3.30.0090.00618.59
8.3.20.0080.00020.29
8.3.10.0040.00423.54
8.3.00.0050.00319.26
8.2.180.0110.01116.50
8.2.170.0100.00322.96
8.2.160.0070.00720.38
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0080.00017.63
8.2.120.0040.00426.35
8.2.110.0030.00620.27
8.2.100.0110.00018.03
8.2.90.0080.00019.26
8.2.80.0050.00317.97
8.2.70.0100.00017.50
8.2.60.0000.00817.93
8.2.50.0080.00518.07
8.2.40.0040.00719.34
8.2.30.0000.00720.68
8.2.20.0050.00317.72
8.2.10.0000.00718.09
8.2.00.0040.00417.98
8.1.280.0130.01325.92
8.1.270.0050.00322.20
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0030.00622.18
8.1.230.0070.00417.79
8.1.220.0070.00017.76
8.1.210.0000.01018.77
8.1.200.0030.00617.36
8.1.190.0060.00317.59
8.1.180.0030.00618.10
8.1.170.0000.00818.50
8.1.160.0050.00222.01
8.1.150.0050.00218.84
8.1.140.0030.00619.63
8.1.130.0030.00317.76
8.1.120.0000.00717.36
8.1.110.0030.00717.48
8.1.100.0060.00317.32
8.1.90.0070.00017.34
8.1.80.0040.00417.49
8.1.70.0040.00417.48
8.1.60.0000.00817.51
8.1.50.0090.00017.45
8.1.40.0030.00717.53
8.1.30.0040.00417.66
8.1.20.0030.00617.53
8.1.10.0000.00817.46
8.1.00.0040.00417.55
8.0.300.0040.00418.77
8.0.290.0060.00316.63
8.0.280.0040.00418.46
8.0.270.0030.00317.19
8.0.260.0030.00317.13
8.0.250.0000.00616.97
8.0.240.0030.00316.96
8.0.230.0070.00016.92
8.0.220.0000.00716.78
8.0.210.0030.00316.87
8.0.200.0050.00216.92
8.0.190.0040.00416.97
8.0.180.0040.00416.94
8.0.170.0000.00716.87
8.0.160.0000.00716.80
8.0.150.0040.00416.83
8.0.140.0030.00516.82
8.0.130.0050.00013.27
8.0.120.0040.00416.76
8.0.110.0040.00416.88
8.0.100.0070.00016.86
8.0.90.0070.00016.90
8.0.80.0120.00316.80
8.0.70.0040.00416.87
8.0.60.0040.00416.83
8.0.50.0040.00416.77
8.0.30.0110.00916.95
8.0.20.0090.00917.40
8.0.10.0020.00516.92
8.0.00.0120.00616.63
7.4.330.0020.00216.85
7.4.320.0030.00316.56
7.4.300.0000.00716.57
7.4.290.0000.00816.51
7.4.280.0000.00716.63
7.4.270.0040.00416.59
7.4.260.0040.00416.57
7.4.250.0000.00916.51
7.4.240.0040.00416.42
7.4.230.0000.00716.62
7.4.220.0160.01016.68
7.4.210.0050.01016.60
7.4.200.0000.00716.59
7.4.160.0110.00416.57
7.4.150.0060.01117.40
7.4.140.0120.00917.86
7.4.130.0120.00816.61
7.4.120.0120.00616.57
7.4.110.0100.01016.57
7.4.100.0100.01316.45
7.4.90.0000.01616.61
7.4.80.0150.00919.39
7.4.70.0100.00616.50
7.4.60.0100.00616.44
7.4.50.0050.00716.39
7.4.40.0130.01016.57
7.4.30.0090.00916.57
7.4.00.0090.00914.67
7.3.330.0000.00613.19
7.3.320.0000.00513.23
7.3.310.0030.00316.46
7.3.300.0060.00016.30
7.3.290.0050.01016.32
7.3.280.0070.00816.36
7.3.270.0090.00917.40
7.3.260.0150.00416.54
7.3.250.0110.00816.31
7.3.240.0080.00916.40
7.3.230.0070.01016.39
7.3.210.0000.01916.36
7.3.200.0100.00716.36
7.3.190.0170.00016.29
7.3.180.0120.00616.23
7.3.170.0040.01316.60
7.3.160.0060.01016.29
7.2.330.0140.01016.57
7.2.320.0030.01516.70
7.2.310.0060.01116.45
7.2.300.0040.01216.73
7.2.290.0090.01016.75
7.2.60.1210.00714.87
7.2.00.0000.01219.44
7.1.200.0030.01015.87
7.1.100.0030.00618.16
7.1.70.0030.01217.02
7.1.60.0070.01719.36
7.1.50.0070.01516.72
7.1.00.0100.07022.58
7.0.200.1020.00314.79
7.0.60.0030.04319.86
7.0.50.0030.04017.80
7.0.40.0030.04720.25
7.0.30.0570.06720.00
7.0.20.0230.06319.98
7.0.10.0000.05020.05
7.0.00.0170.07320.02
5.6.280.0100.05320.92
5.6.210.0030.08720.73
5.6.200.0030.07718.09
5.6.190.0170.08020.64
5.6.180.0400.06720.44
5.6.170.0330.08020.52
5.6.160.0000.05020.54
5.6.150.0070.03718.19
5.6.140.0070.06018.18
5.6.130.0030.04018.21
5.6.120.0100.04721.00
5.6.110.0070.07720.88
5.6.100.0070.06720.99
5.6.90.0130.05321.11
5.6.80.0100.07320.50
5.5.350.0230.07320.38
5.5.340.0070.08018.01
5.5.330.0100.08020.56
5.5.320.0030.03720.24
5.5.310.0200.03320.27
5.5.300.0070.08018.01
5.5.290.0030.08317.95
5.5.280.0130.04720.93
5.5.270.0070.03720.97
5.5.260.0130.08320.76
5.5.250.0070.04020.79
5.5.240.4170.04320.15

preferences:
58.82 ms | 401 KiB | 5 Q