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; } } 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)); } public function unserialize($serialized) { list($this->a) = 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'); $serializedA = serialize($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)
8.3.40.0040.01118.55
8.3.30.0110.00419.18
8.3.20.0070.00020.29
8.3.10.0040.00423.66
8.3.00.0060.00322.24
8.2.170.0070.00722.96
8.2.160.0070.00722.21
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0080.00019.38
8.2.110.0180.00322.00
8.2.100.0110.00017.72
8.2.90.0000.00819.26
8.2.80.0040.00418.04
8.2.70.0040.00417.62
8.2.60.0080.00017.93
8.2.50.0030.00618.07
8.2.40.0000.00818.16
8.2.30.0000.00718.08
8.2.20.0000.00917.73
8.2.10.0050.00217.64
8.2.00.0030.00517.74
8.1.270.0000.01023.85
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00323.80
8.1.230.0040.00719.01
8.1.220.0030.00617.74
8.1.210.0030.00518.77
8.1.200.0060.00317.35
8.1.190.0030.00617.41
8.1.180.0000.00818.10
8.1.170.0000.00818.48
8.1.160.0000.00821.98
8.1.150.0000.00718.68
8.1.140.0050.00217.33
8.1.130.0000.00717.83
8.1.120.0080.00017.39
8.1.110.0040.00417.36
8.1.100.0040.00417.52
8.1.90.0050.00217.48
8.1.80.0030.00617.47
8.1.70.0000.00717.41
8.1.60.0040.00417.61
8.1.50.0050.00317.51
8.1.40.0040.00417.39
8.1.30.0050.00317.63
8.1.20.0040.00417.62
8.1.10.0000.00817.57
8.1.00.0030.00717.57
8.0.300.0040.00418.77
8.0.290.0050.00317.18
8.0.280.0000.00718.46
8.0.270.0000.00717.27
8.0.260.0060.00316.75
8.0.250.0070.00016.97
8.0.240.0000.00716.88
8.0.230.0000.00717.03
8.0.220.0000.00816.89
8.0.210.0030.00316.93
8.0.200.0070.00016.95
8.0.190.0040.00416.86
8.0.180.0040.00416.89
8.0.170.0040.00416.98
8.0.160.0060.00316.93
8.0.150.0040.00416.88
8.0.140.0040.00416.95
8.0.130.0030.00313.32
8.0.120.0050.00516.84
8.0.110.0000.00716.90
8.0.100.0040.00416.80
8.0.90.0000.00716.97
8.0.80.0070.01416.83
8.0.70.0000.00716.80
8.0.60.0000.00717.02
8.0.50.0000.00716.79
8.0.30.0090.01217.35
8.0.20.0100.01017.40
8.0.10.0000.00716.91
8.0.00.0070.01216.62
7.4.330.0000.00515.02
7.4.320.0000.00716.56
7.4.300.0000.00616.62
7.4.290.0030.00316.46
7.4.280.0000.00716.50
7.4.270.0000.00716.52
7.4.260.0030.00316.64
7.4.250.0030.00516.58
7.4.240.0020.00516.61
7.4.230.0000.00716.52
7.4.220.0060.01316.66
7.4.210.0060.01016.58
7.4.200.0000.00816.61
7.4.190.0000.00816.47
7.4.160.0100.00716.55
7.4.150.0110.00517.40
7.4.140.0150.00617.86
7.4.130.0130.00416.53
7.4.120.0070.01016.57
7.4.110.0140.00316.52
7.4.100.0140.00416.51
7.4.90.0150.00616.46
7.4.80.0030.01416.43
7.4.70.0100.00616.46
7.4.60.0150.00216.56
7.4.50.0080.00016.49
7.4.40.0040.01222.77
7.4.30.0060.01516.29
7.4.00.0070.01115.11
7.3.330.0000.00613.20
7.3.320.0000.00513.18
7.3.310.0040.00416.23
7.3.300.0030.00316.43
7.3.290.0030.01216.30
7.3.280.0100.00916.33
7.3.270.0030.01417.40
7.3.260.0090.00916.28
7.3.250.0180.00216.29
7.3.240.0090.01216.64
7.3.230.0110.00716.64
7.3.210.0150.00916.33
7.3.200.0100.01319.39
7.3.190.0140.00316.37
7.3.180.0080.00816.63
7.3.170.0080.00816.39
7.3.160.0130.00316.31
7.3.120.0080.01014.84
7.3.110.0090.00614.83
7.3.100.0040.01114.92
7.3.90.0100.00314.66
7.3.80.0120.00414.56
7.3.70.0070.00714.76
7.3.60.0000.00914.47
7.3.50.0040.01114.77
7.3.40.0070.00714.52
7.3.30.0090.00614.92
7.3.20.0070.00716.55
7.3.10.0040.01116.56
7.3.00.0070.00716.36
7.2.330.0140.00416.36
7.2.320.0090.01216.70
7.2.310.0060.01216.83
7.2.300.0110.01116.74
7.2.290.0060.01016.60
7.2.250.0080.00415.07
7.2.240.0110.01115.35
7.2.230.0000.01515.22
7.2.220.0030.01014.98
7.2.210.0040.00814.97
7.2.200.0080.00315.00
7.2.190.0040.01114.89
7.2.180.0060.00315.07
7.2.170.0070.00314.89
7.2.130.0040.00916.64
7.2.120.0130.00516.71
7.2.110.0070.00816.87
7.2.100.0100.00716.63
7.2.90.0050.00916.53
7.2.80.0090.00416.75
7.2.70.0100.00716.79
7.2.60.0070.00916.88
7.2.50.0120.00716.95
7.2.40.0020.01416.60
7.2.30.0130.00416.73
7.2.20.0050.00916.66
7.2.10.0110.00616.68
7.2.00.0060.01117.79
7.1.330.0040.01115.73
7.1.320.0060.00915.75
7.1.310.0060.00715.64
7.1.300.0040.01215.79
7.1.290.0090.00915.81
7.1.280.0070.01015.74
7.1.270.0000.01715.82
7.1.260.0130.00315.72
7.1.250.0060.00515.41
7.1.200.0000.00915.90
7.1.100.0060.00618.21
7.1.70.0040.01116.98
7.1.60.0100.01419.24
7.1.50.0030.01716.61
7.1.00.0070.07322.48
7.0.200.0100.00316.82
7.0.140.0030.07021.99
7.0.60.0100.08019.93
7.0.50.0130.06317.89
7.0.40.0130.08020.27
7.0.30.0130.05020.34
7.0.20.0300.08020.19
7.0.10.0100.08720.23
7.0.00.0100.07320.07
5.6.280.0100.06721.14
5.6.210.0070.07720.63
5.6.200.0130.03718.18
5.6.190.0070.04020.39
5.6.180.0430.08020.57
5.6.170.0370.05720.71
5.6.160.0030.05720.54
5.6.150.0030.06718.18
5.6.140.0070.05718.14
5.6.130.0030.04318.28
5.6.120.0100.08021.04
5.6.110.0070.08721.03
5.6.100.0070.08021.01
5.6.90.0130.07321.03
5.6.80.0070.06320.39
5.5.350.0100.08320.42
5.5.340.0030.05018.05
5.5.330.0070.05720.27
5.5.320.0000.04320.24
5.5.310.0370.07320.26
5.5.300.0000.08017.94
5.5.290.0000.04717.98
5.5.280.0200.04320.75
5.5.270.0070.03720.88
5.5.260.0070.08320.89
5.5.250.0000.04320.52
5.5.240.0030.08020.36
5.4.450.0400.05319.30
5.4.440.1130.06719.68
5.4.430.0800.06319.39
5.4.420.1100.03719.57
5.4.410.0770.06319.27
5.4.400.0900.08319.23
5.4.390.0700.05319.26
5.4.380.0230.04318.64
5.4.370.0130.05318.75
5.4.360.0100.05318.80
5.4.350.0170.05018.75
5.4.340.0130.05318.62
5.4.320.0100.03312.52
5.4.310.0060.04812.51
5.4.300.0040.04312.52
5.4.290.0010.04712.51
5.4.280.0050.04112.41
5.4.270.0060.04212.41
5.4.260.0100.03512.41
5.4.250.0090.04112.41
5.4.240.0020.04112.41
5.4.230.0050.04012.41
5.4.220.0080.03712.40
5.4.210.0060.04012.40
5.4.200.0070.04312.40
5.4.190.0070.04312.40
5.4.180.0070.03712.39
5.4.170.0300.06712.40
5.4.160.0160.04612.39
5.4.150.0180.04812.39
5.4.140.0180.04712.07
5.4.130.0160.04412.06
5.4.120.0180.04212.02
5.4.110.0210.04212.02
5.4.100.0140.05512.02
5.4.90.0290.06712.02
5.4.80.0180.04512.02
5.4.70.0190.04112.01
5.4.60.0190.04412.02
5.4.50.0200.04212.01
5.4.40.0180.03912.00
5.4.30.0150.04312.00
5.4.20.0440.08012.00
5.4.10.0140.04512.00
5.4.00.0130.04611.48
5.3.290.0100.04212.80
5.3.280.0040.04312.71
5.3.270.0160.04612.73
5.3.260.0180.04712.72
5.3.250.0170.04912.72
5.3.240.0350.06812.72
5.3.230.0220.04312.71
5.3.220.0180.04512.68
5.3.210.0170.04612.68
5.3.200.0170.04612.68
5.3.190.0260.09612.68
5.3.180.0190.04112.68
5.3.170.0180.04112.67
5.3.160.0160.04412.68
5.3.150.0180.04112.68
5.3.140.0260.06412.66
5.3.130.0220.03812.66
5.3.120.0190.04212.66
5.3.110.0160.04412.66
5.3.100.0100.05112.14
5.3.90.0270.06312.13
5.3.80.0150.04712.11
5.3.70.0170.04312.11
5.3.60.0180.04312.10
5.3.50.0140.04512.05
5.3.40.0120.04812.05
5.3.30.0240.09612.01
5.3.20.0170.04311.79
5.3.10.0240.04011.75
5.3.00.0210.04511.74
5.2.170.0180.0449.25
5.2.160.0220.0599.25
5.2.150.0160.0399.25
5.2.140.0190.0389.24
5.2.130.0150.0509.20
5.2.120.0350.1159.20
5.2.110.0210.0369.20
5.2.100.0110.0379.21
5.2.90.0170.0319.20
5.2.80.0170.0359.20
5.2.70.0090.0439.20
5.2.60.0310.0779.15
5.2.50.0130.0379.11
5.2.40.0160.0389.09
5.2.30.0130.0349.07
5.2.20.0200.0329.07
5.2.10.0160.0368.97
5.2.00.0140.0338.82
5.1.60.0120.0318.10
5.1.50.0130.0318.11
5.1.40.0090.0398.10
5.1.30.0130.0318.45
5.1.20.0130.0308.47
5.1.10.0130.0338.18
5.1.00.0160.0288.19
5.0.50.0100.0276.66
5.0.40.0140.0206.52
5.0.30.0080.0376.34
5.0.20.0030.0316.30
5.0.10.0130.0206.28
5.0.00.0060.0406.27
4.4.90.0080.0204.78
4.4.80.0100.0174.75
4.4.70.0100.0204.75
4.4.60.0070.0214.75
4.4.50.0080.0184.77
4.4.40.0060.0334.71
4.4.30.0120.0154.76
4.4.20.0070.0204.85
4.4.10.0080.0184.85
4.4.00.0260.0704.76
4.3.110.0110.0154.67
4.3.100.0070.0184.67
4.3.90.0070.0194.63
4.3.80.0090.0274.59
4.3.70.0140.0204.63
4.3.60.0160.0144.62
4.3.50.0100.0194.63
4.3.40.0100.0264.54
4.3.30.0060.0193.31
4.3.20.0040.0213.29
4.3.10.0040.0213.26
4.3.00.0100.0276.92

preferences:
30.99 ms | 400 KiB | 5 Q