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', 'b'); } public function __wakeUp() { $this->__construct($this->a); } public function getA() { return $this->a; } public function getB() { return $this->b; } } class B implements \Serializable { private $a; private $b; public function __construct($a) { $this->a = $a; $this->b = $a; } public function serialize() { return serialize(array($this->a, $this->b)); } public function unserialize($serialized) { list($this->a, $this->b) = unserialize($serialized); $this->__construct($this->a); } public function getA() { return $this->a; } public function getB() { return $this->b; } } class C { private $a; private $b; public function __construct($a) { $this->a = $a; $this->b = $a; } public function getA() { return $this->a; } public function getB() { return $this->b; } } $a = new A('a'); $b = new B('b'); $c = new C('c'); $b->unserialize('bla'); var_dump($b); $serializedA = serialize($a); $serializedB = serialize($b); $serializedC = serialize($c); var_dump($serializedA); var_dump($serializedB); var_dump($serializedC);

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)
8.3.60.0070.00718.56
8.3.50.0150.00922.10
8.3.40.0120.00318.96
8.3.30.0070.00719.17
8.3.20.0040.00420.38
8.3.10.0030.00523.53
8.3.00.0040.00420.64
8.2.180.0000.01616.50
8.2.170.0110.00422.96
8.2.160.0130.00022.08
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00421.05
8.2.110.0040.00422.32
8.2.100.0060.00617.91
8.2.90.0040.00419.30
8.2.80.0000.00817.97
8.2.70.0000.00917.63
8.2.60.0000.00918.04
8.2.50.0000.00818.07
8.2.40.0080.00019.41
8.2.30.0030.00618.32
8.2.20.0040.00417.77
8.2.10.0050.00217.80
8.2.00.0100.00017.79
8.1.280.0090.01225.92
8.1.270.0080.00024.01
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0000.01023.91
8.1.230.0070.00419.16
8.1.220.0090.00017.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0040.00417.53
8.1.180.0000.00818.10
8.1.170.0040.00418.59
8.1.160.0080.00021.98
8.1.150.0040.00418.61
8.1.140.0040.00417.41
8.1.130.0030.00517.93
8.1.120.0000.00717.51
8.1.110.0040.00417.49
8.1.100.0000.00717.53
8.1.90.0070.00017.39
8.1.80.0000.00717.39
8.1.70.0000.00717.48
8.1.60.0040.00417.65
8.1.50.0030.00617.52
8.1.40.0060.00317.55
8.1.30.0080.00017.70
8.1.20.0040.00417.76
8.1.10.0030.00517.50
8.1.00.0030.00617.59
8.0.300.0030.00518.77
8.0.290.0060.00317.30
8.0.280.0030.00518.34
8.0.270.0080.00017.21
8.0.260.0030.00316.89
8.0.250.0080.00017.11
8.0.240.0000.00717.02
8.0.230.0050.00316.98
8.0.220.0000.00716.88
8.0.210.0000.00816.94
8.0.200.0040.00417.11
8.0.190.0040.00417.00
8.0.180.0000.01116.91
8.0.170.0050.00217.02
8.0.160.0060.00316.88
8.0.150.0050.00317.02
8.0.140.0000.00716.95
8.0.130.0000.00613.41
8.0.120.0030.00516.87
8.0.110.0000.00816.90
8.0.100.0040.00417.12
8.0.90.0040.00416.96
8.0.80.0070.01016.97
8.0.70.0060.00316.89
8.0.60.0040.00416.94
8.0.50.0070.00017.04
8.0.30.0130.00817.18
8.0.20.0130.00617.40
8.0.10.0040.00417.00
8.0.00.0100.00716.82
7.4.330.0000.00515.14
7.4.320.0030.00316.68
7.4.300.0030.00316.63
7.4.290.0070.00016.57
7.4.280.0030.00516.44
7.4.270.0000.00716.51
7.4.260.0030.00316.40
7.4.250.0030.00416.61
7.4.240.0050.00216.58
7.4.230.0000.00716.74
7.4.220.0070.01316.48
7.4.210.0080.00816.64
7.4.200.0040.00416.54
7.4.190.0040.00416.59
7.4.160.0090.00916.42
7.4.150.0110.00717.40
7.4.140.0140.00517.86
7.4.130.0100.00716.64
7.4.120.0110.00616.52
7.4.110.0070.01016.54
7.4.100.0110.01216.63
7.4.90.0150.00816.62
7.4.80.0090.01516.65
7.4.70.0050.01116.60
7.4.60.0080.00816.48
7.4.50.0000.00916.37
7.4.40.0030.01022.77
7.4.30.0040.01216.67
7.4.00.0100.00715.29
7.3.330.0030.00313.34
7.3.320.0000.00513.42
7.3.310.0070.00016.29
7.3.300.0070.00016.34
7.3.290.0070.00716.52
7.3.280.0050.01416.47
7.3.270.0130.00417.40
7.3.260.0110.00816.45
7.3.250.0120.01216.47
7.3.240.0190.00416.58
7.3.230.0070.01016.48
7.3.210.0070.01016.52
7.3.200.0120.00619.39
7.3.190.0060.01016.48
7.3.180.0160.00616.59
7.3.170.0070.01016.47
7.3.160.0090.00616.52
7.3.120.0040.01415.00
7.2.330.0090.00916.68
7.2.320.0000.01716.76
7.2.310.0040.01316.56
7.2.300.0210.01216.46
7.2.290.0100.00716.50
7.2.00.0060.00919.23
7.1.200.0060.00915.66
7.1.100.0110.00018.15
7.1.70.0030.00517.20
7.1.60.0040.01219.22
7.1.50.0070.00317.06
7.1.00.0070.07022.31
7.0.200.0000.00816.73
7.0.140.0070.07022.21
7.0.100.0000.07019.98
7.0.90.0070.09020.04
7.0.80.0430.03719.96
7.0.70.0000.08719.93
7.0.60.0130.08019.93
7.0.50.0300.07720.41
7.0.40.0070.07720.11
7.0.30.0100.04720.18
7.0.20.0100.07319.95
7.0.10.0100.04020.18
7.0.00.0070.07020.11
5.6.280.0070.07320.91
5.6.250.0170.07020.71
5.6.240.0100.03720.53
5.6.230.0030.05020.61
5.6.220.0130.05320.70
5.6.210.0070.08320.58
5.6.200.0130.07321.09
5.6.190.0070.08721.15
5.6.180.0130.07321.01
5.6.170.0070.06721.04
5.6.160.0030.07020.99
5.6.150.0030.05720.97
5.6.140.0100.08021.09
5.6.130.0070.08021.02
5.6.120.0130.04321.12
5.6.110.0000.05321.14
5.6.100.0030.07720.96
5.6.90.0100.07021.04
5.6.80.0000.06720.41
5.6.70.0130.07320.41
5.6.60.0070.07720.46
5.6.50.0070.09020.44
5.6.40.0170.05320.43
5.6.30.0070.06720.55
5.6.20.0130.07320.48
5.6.10.0100.07720.39
5.6.00.0100.05720.35
5.5.380.0030.08020.54
5.5.370.0030.04320.38
5.5.360.0030.05320.39
5.5.350.0030.08720.42
5.5.340.0130.06720.80
5.5.330.0030.05020.75
5.5.320.0170.07320.88
5.5.310.0030.06720.75
5.5.300.0070.07720.85
5.5.290.0030.08320.91
5.5.280.0030.08020.73
5.5.270.0100.07020.79
5.5.260.0030.08320.77
5.5.250.0070.06320.61
5.5.240.0070.07720.14
5.5.230.0070.08320.29
5.5.220.0130.07020.13
5.5.210.0030.07320.32
5.5.200.0130.07320.21
5.5.190.0130.04020.26
5.5.180.0030.07020.16
5.5.160.0030.04720.23
5.5.150.0100.08020.12
5.5.140.0100.04020.29
5.5.130.0000.08020.20
5.5.120.0030.08320.24
5.5.110.0130.04720.09
5.5.100.0070.04019.97
5.5.90.0100.03720.13
5.5.80.0030.03720.18
5.5.70.0030.04020.09
5.5.60.0070.03320.17
5.5.50.0000.04320.08
5.5.40.0070.04020.11
5.5.30.0070.03020.11
5.5.20.0100.03320.16
5.5.10.0030.04020.05
5.5.00.0030.04019.95
5.4.450.0070.04319.51
5.4.440.0070.09019.48
5.4.430.0030.07719.41
5.4.420.0130.07719.55
5.4.410.0100.06719.43
5.4.400.0070.04719.04
5.4.390.0000.07718.90
5.4.380.0100.07018.95
5.4.370.0130.06719.16
5.4.360.0070.06719.18
5.4.350.0170.06019.13
5.4.340.0030.07319.03
5.4.320.0100.04018.91
5.4.310.0100.07319.03
5.4.300.0030.08019.04
5.4.290.0030.07318.89
5.4.280.0130.04319.16
5.4.270.0070.07718.84
5.4.260.0100.03719.04
5.4.250.0000.04318.87
5.4.240.0000.05019.23
5.4.230.0100.03019.12
5.4.220.0000.03718.94
5.4.210.0030.03718.89
5.4.200.0000.03719.03
5.4.190.0030.03019.21
5.4.180.0030.03719.02
5.4.170.0030.04319.12
5.4.160.0070.03719.21
5.4.150.0100.03719.18
5.4.140.0000.05016.47
5.4.130.0070.02716.50
5.4.120.0070.03316.38
5.4.110.0070.03316.50
5.4.100.0070.03316.41
5.4.90.0000.03016.32
5.4.80.0030.03016.35
5.4.70.0000.03316.46
5.4.60.0030.03316.45
5.4.50.0070.03716.26
5.4.40.0070.02716.53
5.4.30.0070.03316.47
5.4.20.0030.03016.37
5.4.10.0030.03716.45
5.4.00.0070.02715.96
5.3.290.0100.07314.66
5.3.280.0030.03714.50
5.3.270.0000.04014.61
5.3.260.0030.03714.58
5.3.250.0030.03714.69
5.3.240.0070.03314.77
5.3.230.0000.04014.59
5.3.220.0030.04714.62
5.3.210.0070.03314.63
5.3.200.0100.03714.73
5.3.190.0000.04014.65
5.3.180.0030.04014.64
5.3.170.0000.05014.51
5.3.160.0000.04014.52
5.3.150.0100.03014.65
5.3.140.0100.02314.69
5.3.130.0000.03714.71
5.3.120.0100.02314.55
5.3.110.0030.03014.50
5.3.100.0030.03014.12
5.3.90.0070.02714.13
5.3.80.0070.02714.01
5.3.70.0100.02714.03
5.3.60.0000.03313.92
5.3.50.0000.04014.04
5.3.40.0100.02713.87
5.3.30.0030.03713.99
5.3.20.0030.03713.77
5.3.10.0030.03313.73
5.3.00.0030.03013.71
5.2.170.0030.02311.28
5.2.160.0030.02311.15
5.2.150.0030.02311.17
5.2.140.0000.03311.16
5.2.130.0070.02311.23
5.2.120.0030.02311.18
5.2.110.0030.02311.18
5.2.100.0030.03711.03
5.2.90.0000.03011.04
5.2.80.0030.05711.15
5.2.70.0000.03711.12
5.2.60.0000.03311.01
5.2.50.0030.05010.91
5.2.40.0000.05711.12
5.2.30.0030.04310.90
5.2.20.0030.03310.84
5.2.10.0030.05010.90
5.2.00.0000.03310.75
5.1.60.0070.03310.01
5.1.50.0070.04310.02
5.1.40.0070.05310.04
5.1.30.0100.05010.27
5.1.20.0130.02010.52
5.1.10.0070.04710.19
5.1.00.0070.02710.18
5.0.50.0030.0179.38
5.0.40.0000.0409.38
5.0.30.0000.0609.38
5.0.20.0030.0439.38
5.0.10.0030.0339.38
5.0.00.0030.0579.38
4.4.90.0030.0309.38
4.4.80.0030.0309.38
4.4.70.0000.0179.38
4.4.60.0030.0209.38
4.4.50.0000.0239.38
4.4.40.0030.0439.38
4.4.30.0000.0209.38
4.4.20.0030.0309.38
4.4.10.0030.0309.38
4.4.00.0030.0479.38
4.3.110.0000.0379.38
4.3.100.0000.0139.38
4.3.90.0000.0139.38
4.3.80.0070.0239.38
4.3.70.0030.0309.38
4.3.60.0070.0179.38
4.3.50.0000.0339.38
4.3.40.0070.0509.38
4.3.30.0000.0309.38
4.3.20.0000.0239.38
4.3.10.0000.0279.38
4.3.00.0070.0309.38

preferences:
55.03 ms | 401 KiB | 5 Q