3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $a = array(); public function __construct() { $this->a[] = new B(1); $this->a[] = new B(2); } } class B implements Serializable { public $b; public function __construct($c) { $this->b = new C($c); } public function serialize() { return serialize(clone $this->b); } public function unserialize($data) { $this->b = unserialize($data); } } class C { public $c; public function __construct($c) { $this->c = $c; } } print_r(serialize(unserialize(serialize(new A()))));

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)
8.3.60.0070.01118.33
8.3.50.0300.00822.09
8.3.40.0070.00718.88
8.3.30.0130.01018.89
8.3.20.0040.00420.14
8.3.10.0080.00021.97
8.3.00.0000.00722.53
8.2.180.0170.00316.50
8.2.170.0070.00722.96
8.2.160.0120.00920.93
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0110.00426.16
8.2.120.0080.00020.62
8.2.110.0090.00022.29
8.2.100.0070.00419.76
8.2.90.0030.00519.34
8.2.80.0040.00418.03
8.2.70.0030.00517.38
8.2.60.0000.00818.05
8.2.50.0000.00818.07
8.2.40.0050.00318.16
8.2.30.0000.00717.95
8.2.20.0000.00717.71
8.2.10.0000.00819.60
8.2.00.0030.00517.68
8.1.280.0070.01025.92
8.1.270.0090.00021.83
8.1.260.0030.00526.35
8.1.250.0070.00028.09
8.1.240.0100.00023.84
8.1.230.0040.00718.98
8.1.220.0000.00817.76
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.52
8.1.180.0000.00818.10
8.1.170.0070.00318.55
8.1.160.0020.00522.03
8.1.150.0000.00718.64
8.1.140.0040.00417.45
8.1.130.0070.00017.79
8.1.120.0040.00417.52
8.1.110.0040.00417.46
8.1.100.0070.00017.44
8.1.90.0040.00417.47
8.1.80.0000.00717.55
8.1.70.0040.00417.31
8.1.60.0000.00917.62
8.1.50.0000.00817.45
8.1.40.0050.00517.52
8.1.30.0040.00417.48
8.1.20.0050.00317.55
8.1.10.0060.00317.54
8.1.00.0000.00817.45
8.0.300.0040.00418.77
8.0.290.0000.00717.05
8.0.280.0030.00318.46
8.0.270.0000.00717.25
8.0.260.0040.00416.82
8.0.250.0070.00016.96
8.0.240.0040.00416.94
8.0.230.0040.00417.05
8.0.220.0030.00516.89
8.0.210.0000.00716.93
8.0.200.0070.00017.04
8.0.190.0000.00716.92
8.0.180.0090.00016.88
8.0.170.0000.00717.02
8.0.160.0040.00417.03
8.0.150.0000.00716.95
8.0.140.0000.00716.95
8.0.130.0000.00613.40
8.0.120.0050.00316.83
8.0.110.0030.00516.94
8.0.100.0040.00416.84
8.0.90.0030.00516.86
8.0.80.0110.00416.99
8.0.70.0000.00816.86
8.0.60.0030.00616.95
8.0.50.0000.00716.95
8.0.30.0110.00816.98
8.0.20.0110.00917.42
8.0.10.0030.00316.99
8.0.00.0120.00816.63
7.4.330.0060.00015.08
7.4.320.0070.00016.54
7.4.300.0040.00416.54
7.4.290.0030.00316.41
7.4.280.0030.00316.50
7.4.270.0000.00716.50
7.4.260.0000.00716.46
7.4.250.0000.00816.32
7.4.240.0040.00416.43
7.4.230.0030.00316.55
7.4.220.0160.00916.50
7.4.210.0080.00916.55
7.4.200.0000.00716.45
7.4.190.0030.00416.62
7.4.160.0090.00616.44
7.4.150.0110.00917.40
7.4.140.0080.01117.86
7.4.130.0110.00916.38
7.4.120.0080.01016.54
7.4.110.0110.00616.38
7.4.100.0130.00316.46
7.4.90.0140.00316.53
7.4.80.0130.00516.63
7.4.70.0130.00316.41
7.4.60.0100.00716.42
7.4.50.0080.00016.75
7.4.40.0070.00722.77
7.4.30.0040.01316.48
7.4.00.0090.00915.10
7.3.330.0020.00213.27
7.3.320.0000.00513.16
7.3.310.0030.00416.25
7.3.300.0000.00716.20
7.3.290.0100.01016.29
7.3.280.0070.01016.29
7.3.270.0120.00617.40
7.3.260.0180.00016.50
7.3.250.0120.00916.46
7.3.240.0110.01216.52
7.3.230.0070.01416.39
7.3.210.0100.01316.46
7.3.200.0060.01519.39
7.3.190.0120.00816.39
7.3.180.0030.01316.47
7.3.170.0100.00716.38
7.3.160.0130.00316.55
7.3.120.0080.00814.73
7.2.330.0030.01416.65
7.2.320.0090.00916.68
7.2.310.0060.01516.72
7.2.300.0100.01316.50
7.2.290.0060.01516.89
7.2.60.0030.00316.91
7.2.50.0090.00316.87
7.1.200.0060.00315.74
7.1.70.0060.00317.27
7.1.60.0070.01519.82
7.1.50.0130.01016.68
7.1.00.0070.07022.37
7.0.200.0060.00616.75
7.0.140.0000.07722.08
7.0.60.0030.08020.07
7.0.50.0070.07717.89
7.0.40.0100.07020.18
7.0.30.0270.07320.27
7.0.20.0370.07320.26
7.0.10.0200.06320.05
7.0.00.0130.08020.20
5.6.280.0070.07021.08
5.6.210.0100.07020.66
5.6.200.0030.05718.22
5.6.190.0030.08020.66
5.6.180.0030.05320.55
5.6.170.0430.05720.47
5.6.160.0100.07320.37
5.6.150.0100.07318.18
5.6.140.0100.06018.18
5.6.130.0170.07718.28
5.6.120.0130.07320.99
5.6.110.0130.07721.05
5.6.100.0130.08021.09
5.6.90.0070.07721.02
5.6.80.0170.05720.40
5.6.70.0370.06720.38
5.5.350.0100.03320.44
5.5.340.0130.07317.94
5.5.330.0270.06720.19
5.5.320.0200.07020.36
5.5.310.0230.05020.27
5.5.300.0070.07317.93
5.5.290.0130.06317.96
5.5.280.0070.08720.91
5.5.270.0330.04720.73
5.5.260.0070.04020.73
5.5.250.0130.03020.67
5.5.240.0000.04720.36
5.4.450.1000.08319.47
5.4.440.0900.08319.43
5.4.430.0130.05019.61
5.4.420.0070.06019.21
5.4.410.0230.04318.98
5.4.400.1070.07318.51
5.4.390.1170.04318.78
5.4.380.0330.06018.73
5.4.370.0030.04018.47
5.4.360.0070.03718.64
5.4.350.0060.03612.03
5.4.340.0030.04412.02
5.4.320.0050.03812.51
5.4.310.0080.03712.51
5.4.300.0050.03812.51
5.4.290.0060.03912.50
5.4.280.0080.03812.40
5.4.270.0060.03612.37
5.4.260.0050.04112.37
5.4.250.0130.04212.37
5.4.240.0060.03612.37
5.4.230.0090.04212.36
5.4.220.0070.03512.36
5.4.210.0040.03712.37
5.4.200.0070.04712.36
5.4.190.0100.03612.36
5.4.180.0070.03512.36
5.4.170.0070.03512.37
5.4.160.0040.03712.36
5.4.150.0060.03512.36
5.4.140.0050.03812.04
5.4.130.0050.03612.03
5.4.120.0070.03411.99
5.4.110.0040.03711.99
5.4.100.0090.04111.99
5.4.90.0090.03411.98
5.4.80.0100.03211.98
5.4.70.0100.03211.98
5.4.60.0100.03611.98
5.4.50.0060.04611.98
5.4.40.0070.03511.96
5.4.30.0020.04011.96
5.4.20.0040.03711.97
5.4.10.0050.03511.96
5.4.00.0050.03711.46
5.3.290.0050.04112.80
5.3.280.0090.03512.70
5.3.270.0040.04112.72
5.3.260.0060.03812.72
5.3.250.0060.03712.72
5.3.240.0040.03912.72
5.3.230.0100.03312.71
5.3.220.0070.03612.68
5.3.210.0090.03612.68
5.3.200.0100.03212.68
5.3.190.0050.03812.67
5.3.180.0070.03512.68
5.3.170.0080.03512.67
5.3.160.0070.03612.68
5.3.150.0080.03512.68
5.3.140.0070.03612.66
5.3.130.0060.04212.66
5.3.120.0070.03712.66
5.3.110.0070.03712.66
5.3.100.0050.03912.12
5.3.90.0060.03712.09
5.3.80.0040.03812.08
5.3.70.0090.03312.07
5.3.60.0020.04012.06
5.3.50.0030.03912.01
5.3.40.0070.03512.01
5.3.30.0060.03511.98
5.3.20.0030.03911.76
5.3.10.0020.03911.71
5.3.00.0060.03611.70
5.2.170.0050.0309.21
5.2.160.0080.0269.21
5.2.150.0020.0339.21
5.2.140.0050.0309.21
5.2.130.0050.0289.16
5.2.120.0050.0279.16
5.2.110.0050.0299.17
5.2.100.0060.0279.18
5.2.90.0070.0279.17
5.2.80.0050.0309.16
5.2.70.0050.0299.16
5.2.60.0060.0289.11
5.2.50.0040.0319.09
5.2.40.0040.0299.06
5.2.30.0050.0319.04
5.2.20.0030.0309.03
5.2.10.0030.0298.94
5.2.00.0040.0328.80
5.1.60.0030.0258.08
5.1.50.0030.0268.08
5.1.40.0050.0248.07
5.1.30.0050.0268.41
5.1.20.0060.0258.44
5.1.10.0070.0268.16
5.1.00.0040.0328.16
5.0.50.0060.0276.63
5.0.40.0090.0226.48
5.0.30.0070.0396.30
5.0.20.0040.0186.27
5.0.10.0020.0216.25
5.0.00.0050.0366.24
4.4.90.0070.0194.78
4.4.80.0020.0184.76
4.4.70.0030.0224.75
4.4.60.0040.0214.75
4.4.50.0040.0144.77
4.4.40.0010.0294.71
4.4.30.0030.0164.76
4.4.20.0030.0164.84
4.4.10.0030.0164.85
4.4.00.0040.0334.76
4.3.110.0050.0204.67
4.3.100.0030.0184.66
4.3.90.0000.0174.63
4.3.80.0020.0254.58
4.3.70.0040.0134.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0030.0234.54
4.3.30.0000.0183.29
4.3.20.0020.0163.26
4.3.10.0030.0163.23
4.3.00.0100.0276.95

preferences:
42.07 ms | 401 KiB | 5 Q