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); } } $foo = new Bar; var_dump(unserialize(serialize($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)
8.3.60.0060.01518.43
8.3.50.0130.00921.13
8.3.40.0120.00318.68
8.3.30.0060.01220.17
8.3.20.0120.00320.36
8.3.10.0060.00320.97
8.3.00.0000.00823.48
8.2.180.0110.00716.73
8.2.170.0070.01422.96
8.2.160.0070.01020.58
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0000.00821.05
8.2.110.0060.00319.31
8.2.100.0080.00317.91
8.2.90.0000.00819.14
8.2.80.0040.00418.16
8.2.70.0080.00517.62
8.2.60.0080.00018.05
8.2.50.0040.00418.07
8.2.40.0040.00420.01
8.2.30.0000.00719.43
8.2.20.0000.00717.70
8.2.10.0040.00417.66
8.2.00.0000.00717.77
8.1.280.0150.00925.92
8.1.270.0070.00023.99
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0000.01122.49
8.1.230.0090.00320.89
8.1.220.0040.00418.77
8.1.210.0000.00818.97
8.1.200.0060.00317.35
8.1.190.0000.00917.53
8.1.180.0000.00818.10
8.1.170.0000.00818.66
8.1.160.0000.00718.98
8.1.150.0060.00318.67
8.1.140.0080.00017.53
8.1.130.0000.00717.80
8.1.120.0020.00517.52
8.1.110.0070.00017.38
8.1.100.0040.00417.44
8.1.90.0050.00317.39
8.1.80.0040.00317.50
8.1.70.0000.00817.48
8.1.60.0080.00017.66
8.1.50.0000.00717.51
8.1.40.0080.00017.57
8.1.30.0050.00317.58
8.1.20.0040.00417.59
8.1.10.0000.00817.64
8.1.00.0040.00417.47
8.0.300.0000.00719.97
8.0.290.0030.00317.15
8.0.280.0030.00318.48
8.0.270.0000.00717.25
8.0.260.0040.00416.98
8.0.250.0000.00716.95
8.0.240.0000.00717.02
8.0.230.0070.00016.99
8.0.220.0000.00716.90
8.0.210.0000.00717.01
8.0.200.0000.00617.10
8.0.190.0060.00317.04
8.0.180.0000.00717.09
8.0.170.0040.00417.00
8.0.160.0070.00016.96
8.0.150.0000.00716.91
8.0.140.0000.01216.83
8.0.130.0050.00013.38
8.0.120.0040.00716.86
8.0.110.0030.00516.88
8.0.100.0020.00517.01
8.0.90.0050.00317.06
8.0.80.0100.00716.98
8.0.70.0040.00416.94
8.0.60.0050.00216.91
8.0.50.0080.00016.86
8.0.30.0120.00717.19
8.0.20.0150.00317.40
8.0.10.0000.00817.11
8.0.00.0130.00616.78
7.4.330.0050.00015.10
7.4.320.0060.00016.41
7.4.300.0030.00316.64
7.4.290.0040.00416.48
7.4.280.0000.00716.43
7.4.270.0070.00016.63
7.4.260.0030.00313.37
7.4.250.0030.00616.54
7.4.240.0000.00716.69
7.4.230.0070.00016.75
7.4.220.0110.00716.51
7.4.210.0090.00516.60
7.4.200.0000.00716.45
7.4.190.0000.00816.47
7.4.160.0080.00816.65
7.4.150.0090.00917.40
7.4.140.0030.01717.86
7.4.130.0070.01016.51
7.4.120.0090.01216.70
7.4.110.0060.01616.56
7.4.100.0100.00716.54
7.4.90.0100.01316.67
7.4.80.0120.00619.39
7.4.70.0110.00716.64
7.4.60.0080.00816.62
7.4.50.0060.00016.50
7.4.40.0000.01922.77
7.4.30.0050.01416.48
7.4.00.0070.01015.03
7.3.330.0050.00013.23
7.3.320.0030.00313.38
7.3.310.0070.00016.33
7.3.300.0040.00416.40
7.3.290.0070.00716.39
7.3.280.0070.01416.41
7.3.270.0060.01217.40
7.3.260.0080.01318.24
7.3.250.0140.01116.57
7.3.240.0060.01216.37
7.3.230.0140.00316.40
7.3.210.0100.00716.36
7.3.200.0150.00719.39
7.3.190.0080.00816.50
7.3.180.0080.00816.38
7.3.170.0160.00316.52
7.3.160.0150.00416.38
7.3.120.0070.00914.72
7.3.110.0060.01314.55
7.3.100.0030.01314.81
7.3.90.0120.00314.82
7.3.80.0070.00714.61
7.3.70.0080.00814.83
7.3.60.0070.00714.78
7.3.50.0040.00414.70
7.3.40.0080.00314.45
7.3.30.0110.00414.54
7.3.20.0090.00616.58
7.3.10.0030.00916.50
7.3.00.0050.00716.39
7.2.330.0070.01016.78
7.2.320.0070.01016.76
7.2.310.0060.01316.44
7.2.300.0130.00316.57
7.2.290.0130.00516.48
7.2.250.0030.01815.14
7.2.240.0060.00914.82
7.2.230.0140.00315.29
7.2.220.0060.00315.18
7.2.210.0030.01314.76
7.2.200.0080.00614.95
7.2.190.0070.01114.93
7.2.180.0030.00815.09
7.2.170.0130.00315.04
7.2.130.0100.01016.63
7.2.120.0060.00616.49
7.2.110.0040.01116.77
7.2.100.0100.00016.69
7.2.90.0070.01316.48
7.2.80.0080.01116.54
7.2.70.0150.01116.45
7.2.60.0090.00816.72
7.2.50.0130.01016.83
7.2.40.0030.01316.83
7.2.30.0110.00716.77
7.2.20.0000.01316.48
7.2.10.0000.01016.77
7.2.00.0070.00718.24
7.1.330.0040.01115.85
7.1.320.0040.00715.59
7.1.310.0090.00315.51
7.1.300.0090.00615.64
7.1.290.0110.00415.66
7.1.280.0070.00715.46
7.1.270.0140.00015.52
7.1.260.0070.00715.58
7.1.250.0060.00615.49
7.1.200.0150.00615.62
7.1.100.0030.00917.82
7.1.70.0000.00717.05
7.1.60.0110.01419.17
7.1.50.0030.02116.89
7.1.00.0070.07322.28
7.0.200.0040.00416.90
7.0.140.0070.07322.04
7.0.100.0100.07720.08
7.0.90.0030.06319.88
7.0.80.0100.07320.00
7.0.70.0130.08019.94
7.0.60.0170.07019.88
7.0.50.0100.08020.28
7.0.40.0030.08720.08
7.0.30.0070.08020.05
7.0.20.0070.07720.04
7.0.10.0170.06720.08
7.0.00.0030.08720.14
5.6.280.0070.07021.01
5.6.250.0130.08020.60
5.6.240.0070.08320.53
5.6.230.0170.07020.61
5.6.220.0100.07320.60
5.6.210.0070.07720.78
5.6.200.0100.08021.12
5.6.190.0130.07020.95
5.6.180.0070.08021.09
5.6.170.0070.08321.10
5.6.160.0000.09021.07
5.6.150.0100.08321.08
5.6.140.0100.04721.02
5.6.130.0030.08721.08
5.6.120.0100.08021.14
5.6.110.0130.08021.17
5.6.100.0100.08021.04
5.6.90.0030.09020.98
5.6.80.0100.07020.44
5.6.70.0070.06720.40
5.6.60.0070.08020.34
5.6.50.0130.07020.38
5.6.40.0100.08020.42
5.6.30.0130.06320.32
5.6.20.0070.07720.29
5.6.10.0170.06720.45
5.6.00.0130.07720.44
5.5.380.0100.08320.43
5.5.370.0100.08020.56
5.5.360.0030.08720.57
5.5.350.0000.08720.38
5.5.340.0030.08320.92
5.5.330.0070.08020.93
5.5.320.0100.07720.85
5.5.310.0130.07320.94
5.5.300.0100.08020.77
5.5.290.0070.07720.92
5.5.280.0130.07320.77
5.5.270.0100.08020.81
5.5.260.0130.07720.89
5.5.250.0130.07720.73
5.5.240.0030.07720.29
5.5.230.0070.06720.11
5.5.220.0100.07320.30
5.5.210.0130.06720.19
5.5.200.0070.08020.30
5.5.190.0030.08020.28
5.5.180.0100.07320.10
5.5.160.0170.06320.12
5.5.150.0100.07019.97
5.5.140.0070.05020.24
5.5.130.0100.06020.25
5.5.120.0100.07020.28
5.5.110.0070.07020.16
5.5.100.0000.08020.08
5.5.90.0070.06320.11
5.5.80.0130.07020.08
5.5.70.0100.07320.16
5.5.60.0170.06719.95
5.5.50.0100.07320.17
5.5.40.0070.07319.93
5.5.30.0130.04720.12
5.5.20.0170.07020.08
5.5.10.0030.08019.97
5.5.00.0100.08020.12
5.4.450.0000.04319.22
5.4.440.0030.05019.45
5.4.430.0070.07719.45
5.4.420.0030.08319.20
5.4.410.0030.04319.42
5.4.400.0030.09019.05
5.4.390.0000.08319.04
5.4.380.0070.04319.16
5.4.370.0130.06319.15
5.4.360.0170.06319.04
5.4.350.0070.07319.23
5.4.340.0030.08019.18
5.4.320.0100.07719.22
5.4.310.0070.08019.05
5.4.300.0070.07319.03
5.4.290.0130.07018.85
5.4.280.0100.07319.13
5.4.270.0070.06319.16
5.4.260.0130.07318.85
5.4.250.0070.04019.11
5.4.240.0000.07719.16
5.4.230.0000.08019.12
5.4.220.0000.05718.95
5.4.210.0130.07018.94
5.4.200.0130.06719.16
5.4.190.0070.07319.12
5.4.180.0100.07019.20
5.4.170.0100.07719.11
5.4.160.0170.06319.10
5.4.150.0100.07719.03
5.4.140.0100.07016.45
5.4.130.0030.07316.45
5.4.120.0070.07016.19
5.4.110.0030.06716.33
5.4.100.0030.07016.36
5.4.90.0070.06716.36
5.4.80.0100.07316.48
5.4.70.0130.07316.27
5.4.60.0030.07316.26
5.4.50.0070.07316.42
5.4.40.0030.07316.32
5.4.30.0070.05016.36
5.4.20.0100.07016.48
5.4.10.0100.07016.44
5.4.00.0100.06315.78
5.3.290.0030.05014.70
5.3.280.0070.07014.66
5.3.270.0100.07314.55
5.3.260.0070.07314.62
5.3.250.0070.06714.60
5.3.240.0030.08014.76
5.3.230.0100.03714.55
5.3.220.0030.06314.64
5.3.210.0000.07314.65
5.3.200.0030.08014.66
5.3.190.0170.06014.59
5.3.180.0100.07714.64
5.3.170.0130.05314.69
5.3.160.0030.07714.61
5.3.150.0100.07314.66
5.3.140.0030.08014.64
5.3.130.0070.07014.55
5.3.120.0070.07714.52
5.3.110.0170.06714.58
5.3.100.0070.07714.17
5.3.90.0130.06014.02
5.3.80.0070.06714.14
5.3.70.0070.07013.92
5.3.60.0070.04313.91
5.3.50.0000.07313.95
5.3.40.0130.07014.05
5.3.30.0070.04313.99
5.3.20.0030.07713.64
5.3.10.0070.07013.56
5.3.00.0170.06313.75
5.2.170.0070.06011.68
5.2.160.0030.06011.68
5.2.150.0030.06311.68
5.2.140.0000.06711.68
5.2.130.0030.06311.68
5.2.120.0070.05011.68
5.2.110.0000.06711.68
5.2.100.0030.06011.68
5.2.90.0030.03711.68
5.2.80.0070.06311.68
5.2.70.0100.06011.68
5.2.60.0100.05711.68
5.2.50.0100.03711.68
5.2.40.0000.03711.68
5.2.30.0070.06011.68
5.2.20.0030.04311.68
5.2.10.0070.06011.68
5.2.00.0000.06711.68
5.1.60.0030.05711.68
5.1.50.0000.05711.68
5.1.40.0000.05711.68
5.1.30.0030.05711.68
5.1.20.0000.05711.68
5.1.10.0030.05711.68
5.1.00.0000.05711.68
5.0.50.0030.03711.68
5.0.40.0070.02011.68
5.0.30.0070.06311.68
5.0.20.0030.04311.68
5.0.10.0070.04011.68
5.0.00.0000.07011.68
4.4.90.0070.03011.68
4.4.80.0030.03311.68
4.4.70.0030.03311.68
4.4.60.0000.03011.68
4.4.50.0030.03311.68
4.4.40.0000.05711.68
4.4.30.0100.01011.68
4.4.20.0000.03711.68
4.4.10.0000.03711.68
4.4.00.0000.05311.68
4.3.110.0030.03711.68
4.3.100.0030.03311.68
4.3.90.0070.03011.68
4.3.80.0030.05311.68
4.3.70.0030.03311.68
4.3.60.0030.03311.68
4.3.50.0030.03311.68
4.3.40.0030.05011.68
4.3.30.0030.03011.68
4.3.20.0000.03711.68
4.3.10.0070.03311.68
4.3.00.0000.03711.68

preferences:
42.9 ms | 401 KiB | 5 Q