3v4l.org

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

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)
8.3.60.0040.01116.63
8.3.50.0140.01122.00
8.3.40.0090.00618.51
8.3.30.0090.00618.71
8.3.20.0050.00220.16
8.3.10.0090.00623.53
8.3.00.0000.00819.98
8.2.180.0070.00718.29
8.2.170.0090.00622.96
8.2.160.0030.01020.39
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0050.00326.16
8.2.120.0080.00019.95
8.2.110.0030.00622.30
8.2.100.0000.01118.05
8.2.90.0000.00719.19
8.2.80.0030.00517.97
8.2.70.0030.00717.50
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0030.00522.20
8.2.30.0030.00520.49
8.2.20.0040.00417.75
8.2.10.0000.00818.05
8.2.00.0050.00317.92
8.1.280.0070.00725.92
8.1.270.0040.00424.66
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0000.00923.92
8.1.230.0090.00317.77
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0080.00017.23
8.1.180.0000.00718.10
8.1.170.0040.00418.66
8.1.160.0000.00820.79
8.1.150.0070.00018.79
8.1.140.0000.00819.56
8.1.130.0070.00017.70
8.1.120.0030.00417.43
8.1.110.0000.00717.46
8.1.100.0080.00017.34
8.1.90.0000.00717.35
8.1.80.0030.00317.30
8.1.70.0070.00017.28
8.1.60.0080.00017.64
8.1.50.0030.00617.41
8.1.40.0040.00417.54
8.1.30.0000.00817.48
8.1.20.0070.00017.53
8.1.10.0050.00317.46
8.1.00.0000.00817.38
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0000.00718.44
8.0.270.0030.00317.29
8.0.260.0070.00017.15
8.0.250.0000.00716.93
8.0.240.0000.00816.98
8.0.230.0030.00316.88
8.0.220.0000.00716.82
8.0.210.0030.00316.80
8.0.200.0000.00616.83
8.0.190.0090.00516.96
8.0.180.0030.00616.81
8.0.170.0080.00016.90
8.0.160.0050.00216.98
8.0.150.0030.00516.81
8.0.140.0030.00616.82
8.0.130.0000.00713.27
8.0.120.0030.00516.89
8.0.110.0000.00716.89
8.0.100.0000.00816.82
8.0.90.0070.00016.78
8.0.80.0120.00916.83
8.0.70.0000.00716.95
8.0.60.0040.00416.88
8.0.50.0000.00816.66
8.0.30.0110.00717.05
8.0.20.0100.01017.40
8.0.10.0000.00716.90
8.0.00.0080.01016.69
7.4.330.0000.00516.67
7.4.320.0030.00316.48
7.4.300.0000.00716.63
7.4.290.0030.00316.50
7.4.280.0000.01116.61
7.4.270.0000.00716.43
7.4.260.0000.00716.55
7.4.250.0000.00716.54
7.4.240.0030.00516.57
7.4.230.0030.00616.59
7.4.220.0130.00616.59
7.4.210.0120.00316.66
7.4.200.0000.00716.59
7.4.160.0060.01016.43
7.4.150.0030.01517.40
7.4.140.0130.00917.86
7.4.130.0110.00716.58
7.4.120.0030.01316.55
7.4.110.0110.00716.55
7.4.100.0140.00316.48
7.4.90.0110.00616.57
7.4.80.0130.00719.39
7.4.70.0100.01316.47
7.4.60.0100.00716.54
7.4.50.0070.00316.45
7.4.40.0040.01616.51
7.4.30.0090.00616.54
7.4.00.0030.01015.09
7.3.330.0030.00313.24
7.3.320.0000.00613.17
7.3.310.0060.00016.29
7.3.300.0040.00316.25
7.3.290.0110.00416.21
7.3.280.0060.01016.22
7.3.270.0130.01017.40
7.3.260.0070.01016.25
7.3.250.0090.01116.31
7.3.240.0140.00516.45
7.3.230.0150.00416.50
7.3.210.0030.01316.51
7.3.200.0100.00716.37
7.3.190.0100.00616.38
7.3.180.0140.00316.56
7.3.170.0160.00416.43
7.3.160.0150.00316.32
7.2.330.0160.00316.57
7.2.320.0060.01316.59
7.2.310.0080.00816.79
7.2.300.0160.00716.59
7.2.290.0120.00416.54
7.2.60.0060.00616.65
7.2.00.0100.00719.21
7.1.200.0040.01115.74
7.1.100.0110.00718.01
7.1.70.0040.00416.91
7.1.60.0070.01419.52
7.1.50.0070.01416.92
7.1.00.0070.07022.45
7.0.200.0000.01016.81
7.0.60.0100.08319.82
7.0.50.0170.06017.86
7.0.40.0030.04320.30
7.0.30.0170.04320.21
7.0.20.0230.05320.16
7.0.10.0100.08020.30
7.0.00.0030.08720.18
5.6.280.0070.04321.02
5.6.210.0000.04320.61
5.6.200.0070.04018.12
5.6.190.0100.08020.45
5.6.180.0330.07320.67
5.6.170.0400.07020.47
5.6.160.0070.04720.40
5.6.150.0030.07018.09
5.6.140.0270.04018.12
5.6.130.0070.07718.12
5.6.120.0030.07020.98
5.6.110.0100.07720.99
5.6.100.0230.06321.02
5.6.90.0100.04021.01
5.6.80.0070.03720.35
5.5.350.0230.07720.31
5.5.340.0170.07317.98
5.5.330.0130.03320.14
5.5.320.0530.04720.13
5.5.310.0170.04720.26
5.5.300.0070.08017.89
5.5.290.0070.07317.88
5.5.280.0070.08020.73
5.5.270.0030.06320.75
5.5.260.0100.08020.64
5.5.250.0070.03720.61
5.5.240.0070.07320.16

preferences:
54.09 ms | 401 KiB | 5 Q