3v4l.org

run code in 300+ PHP versions simultaneously
<?php // --- $a = [1, 2, 3]; foreach ($a as &$v) { $v += 10; } print_r($a); unset($a, $v); // --- $a = [1, 2, 3]; foreach (($a) as &$v) { $v += 10; } print_r($a); unset($a, $v); // --- $a = [1, 2, 3]; foreach (1 ? $a : [] as &$v) { $v += 10; } print_r($a); unset($a, $v); // ---

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)
8.3.60.0220.00016.63
8.3.50.0140.00018.05
8.3.40.0110.00318.70
8.3.30.0100.00718.84
8.3.20.0050.00220.29
8.3.10.0000.00823.52
8.3.00.0050.00319.38
8.2.180.0000.01918.16
8.2.170.0070.00722.96
8.2.160.0100.00320.49
8.2.150.0070.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00417.63
8.2.120.0030.00626.35
8.2.110.0070.00322.08
8.2.100.0090.00318.05
8.2.90.0000.00919.35
8.2.80.0000.00817.97
8.2.70.0060.00317.73
8.2.60.0000.00718.05
8.2.50.0000.00818.07
8.2.40.0040.00419.22
8.2.30.0030.00320.63
8.2.20.0000.00817.85
8.2.10.0030.00518.04
8.2.00.0000.00718.17
8.1.280.0040.01225.92
8.1.270.0030.00623.83
8.1.260.0000.00728.09
8.1.250.0040.00428.09
8.1.240.0090.00022.59
8.1.230.0070.00417.66
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.48
8.1.190.0080.00017.35
8.1.180.0080.00018.10
8.1.170.0040.00418.83
8.1.160.0000.00721.93
8.1.150.0040.00418.75
8.1.140.0050.00319.51
8.1.130.0040.00417.71
8.1.120.0000.00717.47
8.1.110.0040.00417.50
8.1.100.0050.00217.35
8.1.90.0050.00217.51
8.1.80.0000.00717.39
8.1.70.0000.00717.28
8.1.60.0000.00817.49
8.1.50.0040.00417.55
8.1.40.0040.00417.42
8.1.30.0030.00717.68
8.1.20.0050.00217.64
8.1.10.0030.00617.55
8.1.00.0040.00417.50
8.0.300.0050.00218.77
8.0.290.0040.00416.75
8.0.280.0000.00718.46
8.0.270.0070.00017.17
8.0.260.0000.00617.27
8.0.250.0000.00716.94
8.0.240.0040.00416.97
8.0.230.0030.00317.00
8.0.220.0040.00416.98
8.0.210.0080.00016.95
8.0.200.0000.00717.06
8.0.190.0040.00416.96
8.0.180.0030.00617.00
8.0.170.0000.00816.91
8.0.160.0090.00016.99
8.0.150.0030.00316.82
8.0.140.0040.00416.97
8.0.130.0030.00313.45
8.0.120.0050.00316.90
8.0.110.0070.00016.89
8.0.100.0040.00416.98
8.0.90.0080.00016.95
8.0.80.0120.00316.99
8.0.70.0000.00717.01
8.0.60.0000.00716.83
8.0.50.0050.00516.82
8.0.30.0090.00917.01
8.0.20.0080.01117.40
8.0.10.0000.00717.09
8.0.00.0120.00816.77
7.4.330.0050.00016.74
7.4.320.0060.00016.61
7.4.300.0030.00316.61
7.4.290.0030.00316.53
7.4.280.0090.00016.50
7.4.270.0030.00316.46
7.4.260.0040.00416.59
7.4.250.0040.00416.45
7.4.240.0020.00516.53
7.4.230.0000.00716.46
7.4.220.0090.01216.56
7.4.210.0060.01216.55
7.4.200.0030.00316.26
7.4.160.0120.00616.59
7.4.150.0090.00817.40
7.4.140.0120.00817.86
7.4.130.0110.00716.52
7.4.120.0080.01016.57
7.4.110.0170.00716.32
7.4.100.0120.00916.58
7.4.90.0130.00516.43
7.4.80.0110.00919.39
7.4.70.0050.01416.48
7.4.60.0100.00716.35
7.4.50.0110.00516.31
7.4.40.0070.01016.52
7.4.30.0110.00516.75
7.4.00.0070.01114.77
7.3.330.0000.00513.06
7.3.320.0030.00313.07
7.3.310.0070.00016.41
7.3.300.0030.00316.23
7.3.290.0110.00516.33
7.3.280.0080.00816.32
7.3.270.0040.01417.40
7.3.260.0050.01116.59
7.3.240.0110.00816.48
7.3.230.0100.00616.43
7.3.210.0090.01216.46
7.3.200.0120.00916.56
7.3.190.0100.00716.30
7.3.180.0120.00416.26
7.3.170.0160.00016.48
7.3.160.0130.00316.43
7.2.330.0190.00016.40
7.2.320.0130.00816.34
7.2.310.0060.01016.54
7.2.300.0060.01216.71
7.2.290.0130.00916.43
7.2.60.0060.00916.88
7.2.00.0060.00919.47
7.1.200.0100.00315.70
7.1.100.0060.00618.28
7.1.70.0030.01317.05
7.1.60.0070.01719.48
7.1.50.0000.01617.04
7.1.00.0030.07722.27
7.0.200.0200.01014.69
7.0.60.0030.05019.94
7.0.50.0030.05717.86
7.0.40.0130.08320.27
7.0.30.0270.03320.16
7.0.20.0300.07720.33
7.0.10.0170.07720.06
7.0.00.0130.07320.09
5.6.280.0030.07321.07
5.6.210.0070.05020.71
5.6.200.0070.07318.29
5.6.190.0100.08020.33
5.6.180.0300.06720.49
5.6.170.0500.06320.48
5.6.160.0200.06320.50
5.6.150.0100.05718.12
5.6.140.0070.05718.11
5.6.130.0070.07318.27
5.6.120.0130.08021.02
5.6.110.0070.08021.14
5.6.100.0100.08321.04
5.6.90.0000.05021.02
5.6.80.0030.04020.58
5.5.350.0270.07720.37
5.5.340.0030.04018.09
5.5.330.0000.04320.25
5.5.320.0030.08320.50
5.5.310.0200.04020.30
5.5.300.0070.05318.06
5.5.290.0200.04017.95
5.5.280.0130.07720.73
5.5.270.0130.06320.73
5.5.260.0030.04020.86
5.5.250.0030.08720.49
5.5.240.0200.08020.28

preferences:
67.49 ms | 400 KiB | 5 Q