3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $items = array(1,2,3); function getItems() { return $this->items; } } $foo = new Foo(); foreach($foo->getItems() as &$item) { echo $item, PHP_EOL; $item = '-1'; } var_dump($foo->getItems());

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)
8.3.60.0170.00716.75
8.3.50.0130.00722.00
8.3.40.0040.01418.59
8.3.30.0170.00018.90
8.3.20.0080.00020.12
8.3.10.0040.00421.60
8.3.00.0080.00019.25
8.2.180.0140.00718.41
8.2.170.0090.00622.96
8.2.160.0100.00320.41
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0000.00819.23
8.2.110.0030.00619.21
8.2.100.0110.00017.50
8.2.90.0080.00019.24
8.2.80.0030.00617.97
8.2.70.0080.00017.38
8.2.60.0030.00517.93
8.2.50.0030.00618.07
8.2.40.0040.00419.95
8.2.30.0060.00318.08
8.2.20.0000.00717.56
8.2.10.0030.00518.06
8.2.00.0000.00717.85
8.1.280.0140.00025.92
8.1.270.0060.00320.61
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0040.00423.67
8.1.230.0110.00018.81
8.1.220.0000.00817.79
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0000.00817.35
8.1.180.0070.00018.10
8.1.170.0100.00020.42
8.1.160.0030.00521.94
8.1.150.0050.00218.91
8.1.140.0050.00217.44
8.1.130.0000.00717.70
8.1.120.0040.00417.46
8.1.110.0000.00817.36
8.1.100.0080.00017.42
8.1.90.0040.00417.41
8.1.80.0030.00617.44
8.1.70.0030.00317.45
8.1.60.0030.00617.62
8.1.50.0030.00517.53
8.1.40.0050.00517.38
8.1.30.0060.00317.66
8.1.20.0040.00417.63
8.1.10.0080.00017.64
8.1.00.0000.00817.52
8.0.300.0040.00418.77
8.0.290.0050.00216.63
8.0.280.0000.00718.46
8.0.270.0000.00817.37
8.0.260.0030.00317.18
8.0.250.0030.00316.83
8.0.240.0070.00016.85
8.0.230.0000.00716.97
8.0.220.0040.00416.88
8.0.210.0020.00516.82
8.0.200.0030.00316.92
8.0.190.0060.00316.95
8.0.180.0040.00416.82
8.0.170.0000.00716.80
8.0.160.0000.00716.96
8.0.150.0040.00416.94
8.0.140.0000.00716.75
8.0.130.0000.00513.36
8.0.120.0000.00816.79
8.0.110.0000.00716.94
8.0.100.0040.00416.76
8.0.90.0030.00316.95
8.0.80.0080.00816.85
8.0.70.0000.00716.74
8.0.60.0000.00716.79
8.0.50.0040.00416.86
8.0.30.0100.01216.98
8.0.20.0130.01517.40
8.0.10.0040.00417.04
8.0.00.0070.01116.58
7.4.330.0000.00515.03
7.4.320.0030.00316.52
7.4.300.0030.00316.53
7.4.290.0030.00316.65
7.4.280.0040.00416.43
7.4.270.0040.00416.49
7.4.260.0040.00416.48
7.4.250.0080.00016.38
7.4.240.0010.00716.53
7.4.230.0000.00716.50
7.4.220.0100.02016.55
7.4.210.0080.00616.61
7.4.200.0000.00816.39
7.4.160.0090.00616.45
7.4.150.0110.01117.40
7.4.140.0100.01117.86
7.4.130.0080.01016.44
7.4.120.0120.00516.58
7.4.110.0090.01216.55
7.4.100.0080.01016.48
7.4.90.0170.00316.59
7.4.80.0130.01019.39
7.4.70.0130.01016.54
7.4.60.0060.01216.52
7.4.50.0000.00416.65
7.4.40.0100.00716.50
7.4.30.0160.00616.43
7.4.00.0050.01014.88
7.3.330.0000.00613.30
7.3.320.0080.00413.28
7.3.310.0070.00016.31
7.3.300.0070.00016.11
7.3.290.0070.00016.31
7.3.280.0090.00816.31
7.3.270.0070.01117.40
7.3.260.0100.00716.37
7.3.250.0100.00916.46
7.3.240.0070.01016.43
7.3.230.0100.01416.39
7.3.210.0180.00016.64
7.3.200.0150.01019.39
7.3.190.0060.01516.39
7.3.180.0090.00916.66
7.3.170.0150.00616.59
7.3.160.0060.01216.24
7.3.120.0080.00415.06
7.3.110.0090.00914.93
7.3.100.0100.00314.63
7.3.90.0060.00914.43
7.3.80.0110.00314.73
7.3.70.0040.00714.86
7.3.60.0040.00714.89
7.3.50.0060.00914.69
7.3.40.0060.00914.41
7.3.30.0080.00414.61
7.3.20.0070.00716.52
7.3.10.0040.01116.71
7.3.00.0030.01016.49
7.2.330.0120.00916.87
7.2.320.0080.00816.73
7.2.310.0170.00016.85
7.2.300.0170.00016.55
7.2.290.0060.01216.51
7.2.250.0060.01314.60
7.2.240.0060.01215.25
7.2.230.0000.01415.06
7.2.220.0100.00314.98
7.2.210.0070.01015.20
7.2.200.0000.01015.25
7.2.190.0100.00014.85
7.2.180.0090.00615.24
7.2.170.0070.01015.12
7.2.00.0070.00319.63
7.1.330.0080.00415.89
7.1.320.0060.00315.77
7.1.310.0080.00815.88
7.1.300.0050.00515.78
7.1.290.0070.01015.38
7.1.280.0070.00715.89
7.1.270.0040.01115.71
7.1.260.0090.00015.58
7.1.100.0030.01018.18
7.1.70.0050.00217.20
7.1.60.0100.00319.50
7.1.50.0000.02116.89
7.1.00.0000.08022.44
7.0.200.0660.00314.72
7.0.140.0030.07021.92
7.0.60.0200.08019.82
7.0.50.0000.04317.87
7.0.40.0030.08320.20
7.0.30.0300.08020.26
7.0.20.0330.07320.26
7.0.10.0230.07020.15
7.0.00.0070.04020.07
5.6.280.0070.07021.10
5.6.210.0100.06320.66
5.6.200.0070.05018.24
5.6.190.0030.08320.76
5.6.180.0230.04320.40
5.6.170.0300.05020.50
5.6.160.0030.04320.55
5.6.150.0070.08318.29
5.6.140.0030.05018.26
5.6.130.0070.08318.21
5.6.120.0100.07320.99
5.6.110.0030.04020.98
5.6.100.0070.08020.98
5.6.90.0170.07320.99
5.6.80.0100.08020.39
5.6.70.0230.07720.40
5.5.350.0170.07320.48
5.5.340.0000.07318.07
5.5.330.0000.04320.31
5.5.320.0130.04020.32
5.5.310.0270.04720.21
5.5.300.0070.03718.02
5.5.290.0100.08318.08
5.5.280.0000.04320.65
5.5.270.0030.09020.65
5.5.260.0100.05020.96
5.5.250.0070.06320.71
5.5.240.0100.06720.15
5.4.450.0130.05319.59
5.4.440.0830.06019.30
5.4.430.1170.06319.61
5.4.420.0600.05719.48
5.4.410.0800.05019.21
5.4.400.0270.04718.84
5.4.390.0330.05718.81
5.4.380.0130.06318.77
5.4.370.0200.05718.72
5.4.360.0130.05318.79
5.4.350.0130.06018.80
5.4.340.0200.05018.81
5.4.320.0330.04318.52
5.4.310.0170.05318.50
5.4.300.0170.05718.75
5.4.290.0200.05318.59
5.4.280.0130.05718.52
5.4.270.0170.05718.80
5.4.260.0130.06018.46
5.4.250.0170.05718.78
5.4.240.0200.05018.74
5.4.230.0270.04718.71
5.4.220.0170.05318.52
5.4.210.0130.06018.73
5.4.200.0130.05316.62
5.4.190.0200.05018.79
5.4.180.0270.05018.45
5.4.170.0200.05018.68
5.4.160.0200.05018.72
5.4.150.0200.05318.78
5.4.140.0270.06316.18
5.4.130.0200.06716.22
5.4.120.0200.04716.30
5.4.110.0270.03716.42
5.4.100.0200.07016.43
5.4.90.0270.04016.41
5.4.80.0130.05316.41
5.4.70.0270.04016.22
5.4.60.0170.05316.41
5.4.50.0300.04016.30
5.4.40.0270.07016.29
5.4.30.0130.05316.21
5.4.20.0170.05316.21
5.4.10.0170.05016.14
5.4.00.0170.05315.71
5.3.290.0270.04714.72
5.3.280.0230.04314.71
5.3.270.0130.06314.71
5.3.260.0230.05014.66
5.3.250.0300.05014.72
5.3.240.0200.04714.66
5.3.230.0270.05314.81
5.3.220.0130.05714.74
5.3.210.0130.06014.59
5.3.200.0170.05714.73
5.3.190.0270.04314.66
5.3.180.0170.05014.68
5.3.170.0070.06014.78
5.3.160.0170.05714.66
5.3.150.0070.06314.78
5.3.140.0200.04714.66
5.3.130.0170.05314.68
5.3.120.0200.06014.70
5.3.110.0200.05014.56
5.3.100.0100.05714.14
5.3.90.0130.06714.12
5.3.80.0230.04714.24
5.3.70.0100.05714.18
5.3.60.0200.05013.98
5.3.50.0130.05313.98
5.3.40.0170.05013.93
5.3.30.0130.05013.89
5.3.20.0070.06013.68
5.3.10.0230.03713.70
5.3.00.0300.03713.69
5.2.170.0100.04711.36
5.2.160.0130.04011.16
5.2.150.0170.04311.20
5.2.140.0100.04711.20
5.2.130.0130.04011.20
5.2.120.0100.05011.30
5.2.110.0070.05311.14
5.2.100.0130.05311.21
5.2.90.0170.04011.20
5.2.80.0070.05311.30
5.2.70.0170.04011.16
5.2.60.0130.04311.09
5.2.50.0130.04311.11
5.2.40.0130.03711.21
5.2.30.0130.04011.00
5.2.20.0030.04711.00
5.2.10.0170.03310.96
5.2.00.0070.04310.76
5.1.60.0030.04010.01
5.1.50.0100.03710.18
5.1.40.0130.03010.16
5.1.30.0170.03010.32
5.1.20.0170.03010.38
5.1.10.0130.03310.27
5.1.00.0100.03710.20
5.0.50.0130.0238.57
5.0.40.0070.0278.54
5.0.30.0070.0438.34
5.0.20.0170.0178.29
5.0.10.0130.0238.29
5.0.00.0070.0438.16
4.4.90.0030.0236.58
4.4.80.0000.0276.58
4.4.70.0100.0176.58
4.4.60.0030.0236.58
4.4.50.0130.0136.58
4.4.40.0030.0376.58
4.4.30.0100.0206.58
4.4.20.0000.0276.58
4.4.10.0030.0236.58
4.4.00.0130.0276.58
4.3.110.0100.0176.58
4.3.100.0030.0236.58
4.3.90.0070.0206.58
4.3.80.0070.0336.58
4.3.70.0070.0206.58
4.3.60.0030.0236.58
4.3.50.0070.0206.58
4.3.40.0070.0376.58
4.3.30.0070.0236.58
4.3.20.0100.0176.58
4.3.10.0070.0206.58
4.3.00.0130.0176.83

preferences:
68.41 ms | 401 KiB | 5 Q