3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo implements Serializable { private $var1; public function __construct() { $this->var1 = array('ROLE_DEVELOPER'); } public function serialize() { return serialize(array($this->var1)); } public function unserialize($serialized) { list($this->var1) = unserialize($serialized); } } class Bar extends Foo { private $var2; public function __construct() { parent::__construct(); $this->var2 = new \stdClass(); } public function serialize() { return serialize(array($this->var2, parent::serialize())); } public function unserialize($serialized) { list($this->var2, $parentStr) = unserialize($serialized); parent::unserialize($parentStr); } } $foo = new Foo; var_dump(unserialize(serialize($foo)));

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)
8.3.60.0100.00618.43
8.3.50.0140.00921.14
8.3.40.0000.01518.97
8.3.30.0030.01320.13
8.3.20.0040.00420.57
8.3.10.0080.00021.14
8.3.00.0040.00423.70
8.2.180.0120.00616.63
8.2.170.0140.00722.96
8.2.160.0100.00720.30
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00421.05
8.2.110.0090.00019.34
8.2.100.0120.00017.91
8.2.90.0040.00419.30
8.2.80.0040.00418.03
8.2.70.0040.00717.63
8.2.60.0040.00418.05
8.2.50.0030.00618.07
8.2.40.0080.00018.03
8.2.30.0000.00819.57
8.2.20.0000.00717.82
8.2.10.0000.00817.84
8.2.00.0050.00317.69
8.1.280.0140.00425.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.63
8.1.230.0070.00420.95
8.1.220.0000.00818.77
8.1.210.0120.00418.77
8.1.200.0030.00717.47
8.1.190.0030.00517.53
8.1.180.0000.00818.10
8.1.170.0070.00318.55
8.1.160.0040.00418.92
8.1.150.0040.00418.67
8.1.140.0000.00717.40
8.1.130.0030.00317.79
8.1.120.0040.00417.40
8.1.110.0040.00417.54
8.1.100.0040.00417.53
8.1.90.0040.00417.56
8.1.80.0040.00417.52
8.1.70.0030.00317.44
8.1.60.0040.00417.53
8.1.50.0070.00017.40
8.1.40.0000.00717.45
8.1.30.0000.00717.72
8.1.20.0040.00417.57
8.1.10.0060.00317.52
8.1.00.0040.00417.40
8.0.300.0040.00419.89
8.0.290.0080.00017.29
8.0.280.0000.00718.36
8.0.270.0030.00317.30
8.0.260.0060.00316.98
8.0.250.0070.00017.05
8.0.240.0000.00716.93
8.0.230.0050.00217.08
8.0.220.0030.00316.86
8.0.210.0030.00317.02
8.0.200.0060.00017.08
8.0.190.0080.00016.93
8.0.180.0040.00417.02
8.0.170.0040.00416.93
8.0.160.0070.00017.04
8.0.150.0000.00716.95
8.0.140.0060.00316.85
8.0.130.0000.00613.43
8.0.120.0000.00816.89
8.0.110.0030.00516.89
8.0.100.0040.00417.03
8.0.90.0000.00717.06
8.0.80.0030.01417.05
8.0.70.0040.00416.96
8.0.60.0050.00316.89
8.0.50.0000.00816.95
8.0.30.0120.01017.08
8.0.20.0140.00517.40
8.0.10.0040.00416.93
8.0.00.0240.01116.78
7.4.330.0000.00414.95
7.4.320.0040.00416.59
7.4.300.0070.00016.55
7.4.290.0030.00316.59
7.4.280.0000.00716.63
7.4.270.0040.00416.61
7.4.260.0050.00013.33
7.4.250.0040.00416.59
7.4.240.0050.00216.64
7.4.230.0000.00716.55
7.4.220.0090.00916.75
7.4.210.0060.00816.64
7.4.200.0000.00716.49
7.4.190.0040.00416.73
7.4.160.0150.00316.69
7.4.150.0110.00617.40
7.4.140.0120.01217.86
7.4.130.0100.00716.55
7.4.120.0090.00816.66
7.4.110.0130.00716.32
7.4.100.0060.01016.69
7.4.90.0120.00616.28
7.4.80.0060.01219.39
7.4.70.0030.01316.53
7.4.60.0070.01016.47
7.4.50.0090.00016.54
7.4.40.0150.00022.77
7.4.30.0060.01116.61
7.4.00.0030.01014.79
7.3.330.0000.00513.25
7.3.320.0060.00013.45
7.3.310.0000.00716.28
7.3.300.0040.00416.45
7.3.290.0090.00916.46
7.3.280.0120.00616.37
7.3.270.0100.00617.40
7.3.260.0120.00818.24
7.3.250.0100.01016.36
7.3.240.0170.00616.57
7.3.230.0090.01016.58
7.3.210.0100.00716.53
7.3.200.0170.00319.39
7.3.190.0080.00816.41
7.3.180.0100.00616.60
7.3.170.0130.00316.48
7.3.160.0040.01516.24
7.3.120.0040.01114.88
7.2.330.0090.00916.68
7.2.320.0000.01716.82
7.2.310.0120.01216.61
7.2.300.0070.01116.51
7.2.290.0030.01416.86
7.2.00.0030.00919.47
7.1.100.0070.00318.12
7.1.70.0040.00417.07
7.1.60.0070.01819.17
7.1.50.0070.01116.86
7.1.00.0030.06322.37
7.0.200.0000.00916.75
7.0.140.0030.07321.99
7.0.60.0030.04319.93
7.0.50.0030.05717.87
7.0.40.0200.07720.29
7.0.30.0470.07320.21
7.0.20.0200.05020.16
7.0.10.0200.04720.16
7.0.00.0030.04320.31
5.6.280.0070.07020.79
5.6.210.0070.07720.68
5.6.200.0070.08018.14
5.6.190.0000.05020.46
5.6.180.0270.07720.38
5.6.170.0330.08720.55
5.6.160.0100.04720.42
5.6.150.0070.04718.17
5.6.140.0100.06318.15
5.6.130.0000.04718.18
5.6.120.0100.04321.00
5.6.110.0170.07721.04
5.6.100.0070.04020.96
5.6.90.0030.06720.97
5.6.80.0030.06320.52
5.6.70.0270.05320.39
5.5.350.0170.05720.37
5.5.340.0030.07717.99
5.5.330.0030.06020.43
5.5.320.0230.05720.41
5.5.310.0270.08020.27
5.5.300.0100.05318.07
5.5.290.0030.04318.09
5.5.280.0070.06020.98
5.5.270.0070.08320.88
5.5.260.0200.07720.78
5.5.250.0000.04320.50
5.5.240.0030.04020.16
5.4.450.0270.04019.55
5.4.440.0370.03719.31
5.4.430.0270.08019.48
5.4.420.0230.08019.52
5.4.410.0370.06719.43
5.4.400.0230.06319.22
5.4.390.0330.06018.96
5.4.380.0230.07018.89
5.4.370.0230.07319.13
5.4.360.0370.06019.13
5.4.350.0270.03719.31
5.4.340.0330.04719.05
5.4.320.0270.06019.22
5.4.310.0300.05019.08
5.4.300.0230.03719.08
5.4.290.0230.04019.10
5.4.280.0300.06319.08
5.4.270.0370.06019.21
5.4.260.0270.04718.86
5.4.250.0230.05319.21
5.4.240.0230.05719.09
5.4.230.0230.05019.24
5.4.220.0230.07018.93
5.4.210.0270.05719.23
5.4.200.0400.06019.05
5.4.190.0230.07318.93
5.4.180.0230.05319.15
5.4.170.0400.05719.23
5.4.160.0330.07019.11
5.4.150.0200.04719.18
5.4.140.0430.04716.32
5.4.130.0200.04016.35
5.4.120.0330.05716.55
5.4.110.0230.07016.56
5.4.100.0230.05316.56
5.4.90.0300.06316.27
5.4.80.0270.06716.18
5.4.70.0330.06316.55
5.4.60.0200.06716.33
5.4.50.0270.05316.34
5.4.40.0230.05316.54
5.4.30.0230.07016.37
5.4.20.0300.06716.55
5.4.10.0300.06016.18
5.4.00.0370.05316.11
5.3.290.0270.05714.59
5.3.280.0270.07014.52
5.3.270.0270.05014.64
5.3.260.0370.06314.61
5.3.250.0330.06314.52
5.3.240.0270.06014.64
5.3.230.0230.05014.66
5.3.220.0300.03014.60
5.3.210.0300.06314.59
5.3.200.0300.03714.45
5.3.190.0270.04314.59
5.3.180.0230.05714.58
5.3.170.0270.06314.81
5.3.160.0270.06714.59
5.3.150.0270.06714.46
5.3.140.0300.06714.57
5.3.130.0300.07014.79
5.3.120.0230.07714.58
5.3.110.0400.05714.64
5.3.100.0300.06014.13
5.3.90.0400.05014.03
5.3.80.0330.05013.95
5.3.70.0270.06714.26
5.3.60.0270.04314.10
5.3.50.0330.06714.13
5.3.40.0330.06314.08
5.3.30.0330.05014.05
5.3.20.0300.04713.76
5.3.10.0200.07313.58
5.3.00.0300.05713.68
5.2.170.0230.06011.64
5.2.160.0270.06011.64
5.2.150.0270.03711.64
5.2.140.0270.05311.64
5.2.130.0230.05311.64
5.2.120.0300.03711.64
5.2.110.0230.04311.64
5.2.100.0230.03711.64
5.2.90.0200.05311.64
5.2.80.0230.02711.64
5.2.70.0270.05311.64
5.2.60.0270.05011.64
5.2.50.0230.04011.64
5.2.40.0200.06011.64
5.2.30.0200.03311.64
5.2.20.0270.05011.64
5.2.10.0200.05311.64
5.2.00.0170.04711.64
5.1.60.0200.02711.64
5.1.50.0330.02711.64
5.1.40.0270.03711.64
5.1.30.0170.04311.64
5.1.20.0230.04011.64
5.1.10.0200.05311.64
5.1.00.0200.05311.64
5.0.50.0130.03311.64
5.0.40.0070.03311.64
5.0.30.0070.06311.64
5.0.20.0070.02711.64
5.0.10.0030.02311.64
5.0.00.0200.05011.64
4.4.90.0100.03311.64
4.4.80.0130.03011.64
4.4.70.0070.02311.64
4.4.60.0070.02311.64
4.4.50.0170.01311.64
4.4.40.0100.03311.64
4.4.30.0130.03011.64
4.4.20.0100.02311.64
4.4.10.0070.04011.64
4.4.00.0100.03711.64
4.3.110.0130.02711.64
4.3.100.0030.02311.64
4.3.90.0070.01711.64
4.3.80.0100.04711.64
4.3.70.0130.03311.64
4.3.60.0130.02311.64
4.3.50.0130.02711.64
4.3.40.0130.03311.64
4.3.30.0030.02311.64
4.3.20.0070.03311.64
4.3.10.0070.03011.64
4.3.00.0030.02711.64

preferences:
45.77 ms | 401 KiB | 5 Q