3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3]; $b = &$a; foreach($a as $v) { echo "$v\n"; 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)
8.3.60.0040.01116.88
8.3.50.0000.01818.05
8.3.40.0120.00318.56
8.3.30.0150.00018.71
8.3.20.0040.00420.34
8.3.10.0040.00423.53
8.3.00.0040.00419.38
8.2.180.0150.00618.41
8.2.170.0100.00322.96
8.2.160.0070.00722.13
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0060.00319.18
8.2.120.0000.00726.35
8.2.110.0030.00720.38
8.2.100.0040.00818.05
8.2.90.0050.00319.20
8.2.80.0040.00417.97
8.2.70.0030.00917.63
8.2.60.0040.00418.05
8.2.50.0050.00318.07
8.2.40.0040.00419.20
8.2.30.0080.00020.65
8.2.20.0030.00617.72
8.2.10.0000.00817.93
8.2.00.0040.00418.04
8.1.280.0160.00025.92
8.1.270.0090.00022.01
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0090.00020.64
8.1.230.0060.00617.78
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0100.00017.23
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0030.00618.59
8.1.160.0000.00722.07
8.1.150.0000.00718.93
8.1.140.0030.00719.54
8.1.130.0000.00717.60
8.1.120.0070.00017.44
8.1.110.0000.00717.41
8.1.100.0030.00517.35
8.1.90.0000.00717.34
8.1.80.0020.00517.48
8.1.70.0050.00317.32
8.1.60.0080.00017.59
8.1.50.0000.00817.47
8.1.40.0080.00017.40
8.1.30.0040.00417.64
8.1.20.0000.00717.68
8.1.10.0040.00417.53
8.1.00.0000.00917.52
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0030.00318.36
8.0.270.0070.00017.15
8.0.260.0030.00317.12
8.0.250.0000.00816.94
8.0.240.0050.00316.99
8.0.230.0030.00316.92
8.0.220.0000.00716.91
8.0.210.0030.00516.90
8.0.200.0070.00016.99
8.0.190.0000.00716.86
8.0.180.0060.00316.94
8.0.170.0080.00016.89
8.0.160.0040.00416.91
8.0.150.0000.00716.85
8.0.140.0000.00816.85
8.0.130.0030.00313.31
8.0.120.0000.00816.76
8.0.110.0030.00516.75
8.0.100.0040.00416.98
8.0.90.0000.00716.75
8.0.80.0110.00416.87
8.0.70.0040.00416.94
8.0.60.0040.00416.71
8.0.50.0050.00216.79
8.0.30.0030.01517.17
8.0.20.0110.00917.42
8.0.10.0040.00417.04
8.0.00.0100.00816.74
7.4.330.0050.00016.70
7.4.320.0030.00316.52
7.4.300.0000.00616.60
7.4.290.0030.00316.51
7.4.280.0030.00516.43
7.4.270.0050.00316.49
7.4.260.0030.00316.45
7.4.250.0040.00416.41
7.4.240.0050.00216.50
7.4.230.0030.00316.50
7.4.220.0030.02116.52
7.4.210.0090.00616.53
7.4.200.0000.00716.68
7.4.160.0120.00616.22
7.4.150.0110.00717.40
7.4.140.0110.00917.86
7.4.130.0090.00816.53
7.4.120.0070.01116.57
7.4.110.0100.01016.56
7.4.100.0100.01016.54
7.4.90.0070.01416.37
7.4.80.0130.00519.39
7.4.70.0090.00616.48
7.4.60.0140.00716.48
7.4.50.0040.01116.18
7.4.40.0120.01016.63
7.4.30.0120.00816.71
7.4.00.0070.00714.91
7.3.330.0000.00613.17
7.3.320.0000.00613.15
7.3.310.0030.00316.27
7.3.300.0060.00016.25
7.3.290.0080.01016.26
7.3.280.0110.00616.27
7.3.270.0170.00717.40
7.3.260.0110.00716.56
7.3.250.0140.00516.28
7.3.240.0080.01316.40
7.3.230.0090.00916.39
7.3.210.0070.01016.24
7.3.200.0130.00316.21
7.3.190.0000.01616.25
7.3.180.0070.01016.35
7.3.170.0060.01316.38
7.3.160.0040.01216.46
7.3.120.0070.01014.76
7.3.110.0030.01414.39
7.3.100.0040.01515.11
7.3.90.0090.00914.91
7.3.80.0040.01114.91
7.3.70.0040.00814.70
7.3.60.0070.00714.52
7.3.50.0090.00014.65
7.3.40.0030.01014.88
7.3.30.0100.00014.70
7.3.20.0030.00716.64
7.3.10.0100.00316.48
7.3.00.0070.00716.70
7.2.330.0060.01216.59
7.2.320.0140.00316.70
7.2.310.0110.00516.54
7.2.300.0160.00616.61
7.2.290.0090.00916.68
7.2.250.0000.01715.15
7.2.240.0040.01214.98
7.2.230.0060.00314.79
7.2.220.0070.00715.05
7.2.210.0060.00914.95
7.2.200.0030.00915.12
7.2.190.0030.01015.11
7.2.180.0000.01614.92
7.2.170.0070.00715.09
7.2.60.0060.00916.59
7.2.00.0090.00919.50
7.1.330.0120.00315.88
7.1.320.0060.00615.67
7.1.310.0110.00415.80
7.1.300.0060.00615.81
7.1.290.0000.01415.91
7.1.280.0040.00715.82
7.1.270.0060.00615.85
7.1.260.0080.00415.61
7.1.200.0090.00615.73
7.1.100.0030.01418.03
7.1.70.0030.00717.17
7.1.60.0070.01119.48
7.1.50.0170.00717.02
7.1.00.0100.07022.28
7.0.200.0490.00414.52
7.0.60.0030.05319.96
7.0.50.0070.07717.81
7.0.40.0130.08320.04
7.0.30.0200.05020.04
7.0.20.0270.07320.16
7.0.10.0100.03720.20
7.0.00.0070.08020.13
5.6.210.0070.07320.73
5.6.200.0170.08018.16
5.6.190.0030.04320.44
5.6.180.0270.04720.61
5.6.170.0370.05020.38
5.6.160.0130.07720.50
5.6.150.0030.04318.12
5.6.140.0070.06318.12
5.6.130.0030.04018.07
5.6.120.0100.08021.00
5.6.110.0130.07321.13
5.6.100.0000.04321.10
5.6.90.0100.08020.98
5.6.80.0070.07320.38
5.5.350.4500.03320.34
5.5.340.0070.05317.96
5.5.330.0070.04020.21
5.5.320.0300.07020.34
5.5.310.0230.09020.17
5.5.300.0030.04018.02
5.5.290.0070.05717.97
5.5.280.0030.06320.93
5.5.270.0030.06320.76
5.5.260.0070.04320.89
5.5.250.0030.08320.58
5.5.240.0170.05720.26

preferences:
56.58 ms | 400 KiB | 5 Q