3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $a; private $b; public function __construct($a) { $this->a = $a; $this->b = $a; } public function __sleep() { return array('a'); } public function __wakeUp() { $this->__construct($this->a); } public function getA() { return $this->a; } public function getB() { return $this->b; } } $a = new A('a'); $serialized = serialize($a); $unserialized = unserialize($serialized); var_dump($serialized); var_dump($unserialized); var_dump($unserialized->getA()); var_dump($unserialized->getB());

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)
8.3.60.0120.00918.56
8.3.50.0100.00922.11
8.3.40.0070.01118.88
8.3.30.0040.01118.80
8.3.20.0000.00818.52
8.3.10.0040.00421.00
8.3.00.0040.00423.53
8.2.180.0070.01418.28
8.2.170.0100.01022.96
8.2.160.0070.00720.35
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.01526.16
8.2.120.0040.00420.99
8.2.110.0060.00319.30
8.2.100.0040.00817.84
8.2.90.0040.00418.96
8.2.80.0000.00917.97
8.2.70.0000.00817.38
8.2.60.0000.00917.91
8.2.50.0040.00418.10
8.2.40.0030.00920.60
8.2.30.0000.00819.79
8.2.20.0040.00417.52
8.2.10.0060.00317.75
8.2.00.0040.00417.55
8.1.280.0110.00725.92
8.1.270.0050.00323.99
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0040.00423.88
8.1.230.0120.00317.76
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0090.00017.35
8.1.190.0060.00317.10
8.1.180.0090.00018.10
8.1.170.0030.00618.59
8.1.160.0040.00422.14
8.1.150.0040.00418.51
8.1.140.0030.00517.38
8.1.130.0000.00717.84
8.1.120.0030.00317.43
8.1.110.0000.00817.33
8.1.100.0040.00417.36
8.1.90.0040.00417.38
8.1.80.0070.00017.27
8.1.70.0000.00817.41
8.1.60.0000.00717.62
8.1.50.0070.00017.46
8.1.40.0050.00317.59
8.1.30.0000.00717.65
8.1.20.0080.00017.70
8.1.10.0000.00817.65
8.1.00.0040.00417.41
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.33
8.0.270.0030.00317.10
8.0.260.0050.00316.83
8.0.250.0070.00016.87
8.0.240.0030.00516.86
8.0.230.0030.00316.84
8.0.220.0000.00716.91
8.0.210.0000.00716.94
8.0.200.0050.00217.01
8.0.190.0080.00016.88
8.0.180.0000.00817.00
8.0.170.0040.00416.81
8.0.160.0040.00417.01
8.0.150.0040.00416.74
8.0.140.0040.00416.92
8.0.130.0000.00613.34
8.0.120.0040.00416.78
8.0.110.0040.00416.73
8.0.100.0080.00016.86
8.0.90.0080.00016.88
8.0.80.0080.00816.78
8.0.70.0050.00316.78
8.0.60.0000.00816.73
8.0.50.0040.00416.77
8.0.30.0100.00916.91
8.0.20.0080.01117.42
8.0.10.0040.00417.03
8.0.00.0110.00816.61
7.4.330.0050.00014.71
7.4.320.0060.00016.51
7.4.300.0030.00316.51
7.4.290.0030.00316.39
7.4.280.0000.00716.50
7.4.270.0070.00016.66
7.4.260.0060.00013.23
7.4.250.0000.00816.43
7.4.240.0070.00016.61
7.4.230.0030.00316.40
7.4.220.0130.00916.52
7.4.210.0050.00916.56
7.4.200.0000.00716.68
7.4.190.0000.00716.54
7.4.160.0030.01316.39
7.4.150.0130.00417.40
7.4.140.0120.00617.86
7.4.130.0100.00716.55
7.4.120.0110.00716.63
7.4.110.0080.00816.63
7.4.100.0070.01016.59
7.4.90.0120.01316.59
7.4.80.0100.00719.37
7.4.70.0090.00616.69
7.4.60.0070.01116.36
7.4.50.0060.00316.39
7.4.40.0040.01222.52
7.4.30.0130.01016.34
7.4.00.0130.00314.95
7.3.330.0000.00613.25
7.3.320.0090.00013.18
7.3.310.0050.00216.26
7.3.300.0000.00716.26
7.3.290.0000.02116.20
7.3.280.0100.00516.25
7.3.270.0130.00317.40
7.3.260.0090.00918.24
7.3.250.0120.00616.47
7.3.240.0060.01116.30
7.3.230.0070.01716.39
7.3.210.0090.00916.45
7.3.200.0170.00719.39
7.3.190.0130.00716.42
7.3.180.0100.00616.45
7.3.170.0100.01016.39
7.3.160.0090.00616.41
7.3.120.0040.00714.82
7.2.330.0080.00816.53
7.2.320.0070.01416.65
7.2.310.0080.01216.85
7.2.300.0100.01016.65
7.2.290.0060.01016.30
7.2.00.0060.00319.39
7.1.100.0030.01017.98
7.1.70.0000.01117.02
7.1.60.0170.00719.40
7.1.50.0140.01016.58
7.1.00.0030.06322.25
7.0.200.0040.00416.82
7.0.140.0030.07321.96
7.0.70.0030.07721.72
7.0.60.0100.07721.86
7.0.50.0100.08021.96
7.0.40.0030.07020.18
7.0.30.0130.07020.08
7.0.20.0030.08720.10
7.0.10.0070.08020.13
7.0.00.0030.08720.03
5.6.280.0030.07321.16
5.6.220.0000.07720.63
5.6.210.0000.07320.48
5.6.200.0030.08021.04
5.6.190.0100.07721.11
5.6.180.0030.08021.01
5.6.170.0030.06321.08
5.6.160.0070.08320.94
5.6.150.0070.08321.05
5.6.140.0000.08721.05
5.6.130.0100.07720.96
5.6.120.0030.08321.11
5.6.110.0030.05721.04
5.6.100.0100.07020.90
5.6.90.0070.07721.15
5.6.80.0030.05020.44
5.6.70.0000.05020.52
5.6.60.0070.07720.40
5.6.50.0070.06020.53
5.6.40.0000.08720.32
5.6.30.0030.08320.48
5.6.20.0070.06020.40
5.6.10.0100.07020.32
5.6.00.0130.05020.48
5.5.360.0100.07020.34
5.5.350.0030.07320.49
5.5.340.0030.06720.74
5.5.330.0100.08320.87
5.5.320.0030.08020.76
5.5.310.0070.07720.74
5.5.300.0070.08320.83
5.5.290.0070.07720.73
5.5.280.0030.08320.88
5.5.270.0100.08020.83
5.5.260.0100.04720.92
5.5.250.0030.05020.72
5.5.240.0030.04320.27
5.5.230.0070.08320.20
5.5.220.0100.07720.31
5.5.210.0070.05020.30
5.5.200.0100.07020.15
5.5.190.0030.08720.11
5.5.180.0030.08019.99
5.5.160.0070.08020.18
5.5.150.0100.07020.28
5.5.140.0070.05320.18
5.5.130.0070.07720.21
5.5.120.0070.07320.13
5.5.110.0070.05320.17
5.5.100.0030.08320.12
5.5.90.0130.04720.09
5.5.80.0030.07320.17
5.5.70.0030.05020.09
5.5.60.0130.05720.05
5.5.50.0000.05720.14
5.5.40.0030.07720.08
5.5.30.0030.05020.05
5.5.20.0070.08019.93
5.5.10.0070.08320.04
5.5.00.0030.08320.13
5.4.450.0030.08019.20
5.4.440.0000.08019.37
5.4.430.0130.06719.48
5.4.420.0030.08319.37
5.4.410.0100.07019.14
5.4.400.0070.07319.19
5.4.390.0030.07719.03
5.4.380.0000.08019.14
5.4.370.0100.05319.04
5.4.360.0100.06719.21
5.4.350.0100.08319.14
5.4.340.0000.08319.05
5.4.320.0000.08019.14
5.4.310.0030.08019.23
5.4.300.0030.05018.95
5.4.290.0100.05319.10
5.4.280.0030.06318.83
5.4.270.0070.04719.22
5.4.260.0130.07019.13
5.4.250.0000.07019.19
5.4.240.0070.07019.15
5.4.230.0000.07019.04
5.4.220.0070.07319.08
5.4.210.0030.03718.94
5.4.200.0030.07719.09
5.4.190.0000.05719.11
5.4.180.0000.08019.12
5.4.170.0030.04719.15
5.4.160.0030.08018.85
5.4.150.0070.05019.01
5.4.140.0030.04316.34
5.4.130.0000.07716.43
5.4.120.0030.07316.42
5.4.110.0030.07716.61
5.4.100.0000.05716.43
5.4.90.0000.04716.39
5.4.80.0030.06016.48
5.4.70.0030.06716.47
5.4.60.0100.07016.39
5.4.50.0100.06316.36
5.4.40.0030.07016.54
5.4.30.0030.07016.35
5.4.20.0070.06016.30
5.4.10.0030.04716.41
5.4.00.0100.06015.86
5.3.290.0030.06014.65
5.3.280.0100.05714.62
5.3.270.0030.07014.57
5.3.260.0070.05014.54
5.3.250.0070.07314.64
5.3.240.0030.04014.50
5.3.230.0030.06014.59
5.3.220.0000.07314.57
5.3.210.0100.06314.61
5.3.200.0000.06014.67
5.3.190.0030.07714.56
5.3.180.0070.07014.52
5.3.170.0070.04714.54
5.3.160.0030.07714.64
5.3.150.0000.07314.55
5.3.140.0070.05314.59
5.3.130.0030.04314.63
5.3.120.0030.07714.55
5.3.110.0070.07014.68
5.3.100.0000.05014.10
5.3.90.0030.07314.00
5.3.80.0070.05313.95
5.3.70.0030.04314.16
5.3.60.0070.04314.13
5.3.50.0030.06714.10
5.3.40.0100.06713.93
5.3.30.0030.07013.94
5.3.20.0000.07713.72
5.3.10.0000.06013.80
5.3.00.0030.06313.79
5.2.170.0030.05012.14
5.2.160.0030.06012.14
5.2.150.0000.06012.14
5.2.140.0070.05712.14
5.2.130.0070.06012.14
5.2.120.0000.06012.14
5.2.110.0000.06012.14
5.2.100.0070.04712.14
5.2.90.0170.05312.14
5.2.80.0030.06012.14
5.2.70.0070.06312.14
5.2.60.0000.06012.14
5.2.50.0000.05312.14
5.2.40.0030.04012.14
5.2.30.0030.04312.14
5.2.20.0030.06012.14
5.2.10.0000.05712.14
5.2.00.0030.03712.14
5.1.60.0000.05312.14
5.1.50.0000.05712.14
5.1.40.0070.05012.14
5.1.30.0030.04712.14
5.1.20.0030.05012.14
5.1.10.0070.05312.14
5.1.00.0070.05012.14
5.0.50.0070.03712.14
5.0.40.0030.04312.14
5.0.30.0030.05312.14
5.0.20.0100.03312.14
5.0.10.0070.02712.14
5.0.00.0030.06312.14
4.4.90.0000.03712.14
4.4.80.0030.03312.14
4.4.70.0000.03712.14
4.4.60.0000.03712.14
4.4.50.0000.03712.14
4.4.40.0000.05712.14
4.4.30.0000.03712.14
4.4.20.0000.04012.14
4.4.10.0030.03712.14
4.4.00.0030.05312.14
4.3.110.0000.04012.14
4.3.100.0000.03712.14
4.3.90.0000.02712.14
4.3.80.0000.05312.14
4.3.70.0000.03312.14
4.3.60.0000.03712.14
4.3.50.0000.03712.14
4.3.40.0100.04712.14
4.3.30.0030.03312.14
4.3.20.0030.03712.14
4.3.10.0030.03712.14
4.3.00.0030.03312.14

preferences:
53.68 ms | 401 KiB | 5 Q