3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $a = array(); public function __construct() { $this->a[] = new B(1); $this->a[] = new B(2); } } class B implements Serializable { public $b; public function __construct($c) { $this->b = new C($c); } public function serialize() { return serialize(clone $this->b); } public function unserialize($data) { $this->b = unserialize($data); } } class C { public $c; public function __construct($c) { $this->c = $c; } } $a = unserialize(serialize(new A())); print $a->a[0]->b->c . "\n"; print $a->a[1]->b->c . "\n";

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)
8.3.40.0150.00018.96
8.3.30.0100.00719.18
8.3.20.0070.00020.17
8.3.10.0090.00623.57
8.3.00.0050.00319.63
8.2.170.0120.00622.96
8.2.160.0070.00720.44
8.2.150.0110.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0080.00019.44
8.2.110.0100.00622.30
8.2.100.0110.00018.16
8.2.90.0100.00319.16
8.2.80.0000.00817.97
8.2.70.0030.00517.75
8.2.60.0000.00818.05
8.2.50.0000.00818.07
8.2.40.0000.00819.88
8.2.30.0030.00718.12
8.2.20.0000.00817.79
8.2.10.0040.00418.09
8.2.00.0050.00217.80
8.1.270.0040.00422.09
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0100.00023.82
8.1.230.0090.00319.09
8.1.220.0000.00817.78
8.1.210.0040.00418.77
8.1.200.0000.00917.48
8.1.190.0050.00317.35
8.1.180.0040.00418.10
8.1.170.0090.00018.50
8.1.160.0000.00722.02
8.1.150.0000.00718.95
8.1.140.0020.00517.51
8.1.130.0070.00017.78
8.1.120.0040.00417.53
8.1.110.0030.00517.35
8.1.100.0000.00717.35
8.1.90.0040.00417.48
8.1.80.0030.00317.47
8.1.70.0000.00717.45
8.1.60.0000.00817.64
8.1.50.0040.00417.53
8.1.40.0000.00817.57
8.1.30.0030.00617.55
8.1.20.0040.00417.70
8.1.10.0080.00017.46
8.1.00.0030.00617.52
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0070.00018.45
8.0.270.0040.00417.25
8.0.260.0030.00317.31
8.0.250.0040.00416.95
8.0.240.0000.00716.98
8.0.230.0030.00317.03
8.0.220.0030.00316.94
8.0.210.0070.00016.95
8.0.200.0070.00017.07
8.0.190.0040.00417.03
8.0.180.0040.00417.01
8.0.170.0050.00216.99
8.0.160.0040.00417.02
8.0.150.0030.00316.91
8.0.140.0040.00416.86
8.0.130.0000.00713.19
8.0.120.0000.00816.94
8.0.110.0040.00417.00
8.0.100.0040.00416.88
8.0.90.0040.00416.81
8.0.80.0060.00916.88
8.0.70.0040.00416.95
8.0.60.0000.00816.95
8.0.50.0000.00717.07
8.0.30.0120.00716.97
8.0.20.0060.01317.40
8.0.10.0000.00716.95
8.0.00.0080.00916.84
7.4.330.0020.00215.00
7.4.320.0040.00416.37
7.4.300.0060.00016.60
7.4.290.0070.00016.51
7.4.280.0030.00316.61
7.4.270.0000.00716.63
7.4.260.0050.00516.59
7.4.250.0030.00516.46
7.4.240.0030.00416.52
7.4.230.0030.00316.63
7.4.220.0180.00916.65
7.4.210.0070.01016.65
7.4.200.0040.00416.62
7.4.160.0120.00616.66
7.4.150.0000.01917.40
7.4.140.0070.01017.86
7.4.130.0090.00916.44
7.4.120.0100.00816.50
7.4.110.0090.00916.37
7.4.100.0030.01316.57
7.4.90.0070.01116.55
7.4.80.0120.00919.39
7.4.70.0110.01116.48
7.4.60.0000.01616.56
7.4.50.0000.00816.46
7.4.40.0100.00716.48
7.4.30.0130.00716.59
7.4.00.0100.00815.04
7.3.330.0030.00313.38
7.3.320.0030.00313.39
7.3.310.0050.00216.48
7.3.300.0030.00316.28
7.3.290.0070.00716.39
7.3.280.0110.00616.39
7.3.270.0100.00717.40
7.3.260.0130.00616.45
7.3.250.0070.01016.51
7.3.240.0040.01316.34
7.3.230.0100.00616.46
7.3.210.0090.00916.38
7.3.200.0060.01016.33
7.3.190.0100.00716.60
7.3.180.0030.01316.46
7.3.170.0060.00916.64
7.3.160.0120.00316.36
7.3.120.0060.01314.83
7.3.110.0060.01315.06
7.3.100.0040.01215.06
7.3.90.0050.00514.94
7.3.80.0000.01614.86
7.3.70.0030.01014.94
7.3.60.0030.01214.64
7.3.50.0000.00914.76
7.3.40.0030.00914.68
7.3.30.0070.00314.61
7.3.20.0100.00716.80
7.3.10.0030.01416.31
7.3.00.0060.01016.68
7.2.330.0150.00616.55
7.2.320.0070.01016.82
7.2.310.0120.01216.79
7.2.300.0030.01316.82
7.2.290.0090.01416.77
7.2.250.0100.01015.27
7.2.240.0060.01315.38
7.2.230.0100.00315.16
7.2.220.0070.00714.68
7.2.210.0090.00314.69
7.2.200.0000.00915.22
7.2.190.0030.00714.97
7.2.180.0080.00815.07
7.2.170.0000.01114.98
7.2.60.0060.00916.88
7.2.50.0060.00617.06
7.1.330.0040.01215.97
7.1.320.0130.00015.64
7.1.310.0060.00315.77
7.1.300.0110.00415.54
7.1.290.0040.01115.63
7.1.280.0060.00615.50
7.1.270.0000.01015.53
7.1.260.0100.00315.54
7.1.200.0050.00515.69
7.1.70.0030.01017.34
7.1.60.0000.01519.40
7.1.50.0070.01517.11
7.1.00.0070.07022.30
7.0.200.0070.00716.85
7.0.140.0070.07022.00
7.0.100.0230.07719.94
7.0.90.0170.08019.93
7.0.80.0070.06719.95
7.0.70.0100.08720.00
7.0.60.0070.08020.05
7.0.50.0170.07720.36
7.0.40.0100.06720.01
7.0.30.0170.06720.00
7.0.20.0100.04720.16
7.0.10.0030.08720.11
7.0.00.0070.04020.09
5.6.280.0030.07320.82
5.6.250.0070.05020.69
5.6.240.0100.03320.77
5.6.230.0170.06320.68
5.6.220.0070.05320.68
5.6.210.0070.04720.48
5.6.200.0100.05321.05
5.6.190.0100.06721.09
5.6.180.0000.09321.02
5.6.170.0070.08721.12
5.6.160.0030.05021.04
5.6.150.0130.03721.02
5.6.140.0030.04321.14
5.6.130.0030.04321.09
5.6.120.0100.03721.05
5.6.110.0170.03721.06
5.6.100.0030.04321.04
5.6.90.0000.04721.04
5.6.80.0030.03320.54
5.6.70.0000.04320.39
5.6.60.0130.02720.55
5.6.50.0100.02720.48
5.6.40.0100.03320.27
5.6.30.0130.03020.49
5.6.20.0000.04720.30
5.6.10.0000.03720.52
5.6.00.0070.03020.36
5.5.380.0130.03020.44
5.5.370.0070.05320.41
5.5.360.0130.07320.51
5.5.350.0070.04020.35
5.5.340.0070.08020.90
5.5.330.0030.04320.93
5.5.320.0070.08720.75
5.5.310.0070.07720.92
5.5.300.0030.04320.79
5.5.290.0030.04320.89
5.5.280.0130.03320.90
5.5.270.0070.08320.75
5.5.260.0070.04720.83
5.5.250.0030.04020.68
5.5.240.0130.03020.17
5.5.230.0070.03020.18
5.5.220.0100.03320.18
5.5.210.0030.03720.19
5.5.200.0030.04020.28
5.5.190.0070.03320.25
5.5.180.0030.03320.09
5.5.160.0030.03720.24
5.5.150.0030.03320.27
5.5.140.0030.04020.23
5.5.130.0000.04020.29
5.5.120.0030.07019.99
5.5.110.0100.07020.15
5.5.100.0100.05320.08
5.5.90.0100.05320.11
5.5.80.0130.07319.99
5.5.70.0070.05320.03
5.5.60.0000.08020.09
5.5.50.0100.03720.16
5.5.40.0000.08320.16
5.5.30.0070.08720.16
5.5.20.0000.07719.97
5.5.10.0100.06720.04
5.5.00.0070.09020.12
5.4.450.0000.04319.38
5.4.440.0070.03719.41
5.4.430.0030.04019.20
5.4.420.0000.04319.18
5.4.410.0030.03719.05
5.4.400.0030.03319.05
5.4.390.0030.04018.88
5.4.380.0030.03719.24
5.4.370.0070.03719.04
5.4.360.0100.03319.24
5.4.350.0070.03019.04
5.4.340.0000.03719.24
5.4.320.0000.03719.14
5.4.310.0070.03319.01
5.4.300.0070.03319.15
5.4.290.0030.03719.18
5.4.280.0070.04319.07
5.4.270.0030.08019.03
5.4.260.0030.06019.14
5.4.250.0070.05319.20
5.4.240.0000.04019.21
5.4.230.0070.06719.03
5.4.220.0130.03719.13
5.4.210.0130.05019.09
5.4.200.0070.05019.02
5.4.190.0170.06019.04
5.4.180.0030.05319.22
5.4.170.0030.07719.04
5.4.160.0000.05318.92
5.4.150.0100.04319.07
5.4.140.0070.05716.27
5.4.130.0070.04016.24
5.4.120.0070.05716.47
5.4.110.0070.06316.40
5.4.100.0030.03316.57
5.4.90.0030.07016.55
5.4.80.0100.03016.45
5.4.70.0000.06016.54
5.4.60.0030.03716.34
5.4.50.0100.05016.25
5.4.40.0030.06716.42
5.4.30.0070.06316.25
5.4.20.0070.07016.42
5.4.10.0070.07016.45
5.4.00.0070.06315.92
5.3.290.0000.05014.67
5.3.280.0070.03314.64
5.3.270.0070.06314.55
5.3.260.0130.07714.68
5.3.250.0100.05014.55
5.3.240.0100.06014.77
5.3.230.0070.04314.64
5.3.220.0030.03714.52
5.3.210.0070.03314.73
5.3.200.0030.03314.57
5.3.190.0030.03314.63
5.3.180.0100.03014.52
5.3.170.0070.07314.65
5.3.160.0000.04014.67
5.3.150.0000.07714.52
5.3.140.0100.03314.51
5.3.130.0030.07314.55
5.3.120.0070.07714.50
5.3.110.0030.07314.55
5.3.100.0030.06314.16
5.3.90.0000.05714.04
5.3.80.0170.05314.10
5.3.70.0000.07014.17
5.3.60.0030.05314.09
5.3.50.0070.06014.02
5.3.40.0030.07713.99
5.3.30.0070.03014.04
5.3.20.0100.04713.83
5.3.10.0070.03013.80
5.3.00.0070.07313.60
5.2.170.0100.05011.29
5.2.160.0070.03711.29
5.2.150.0000.06711.20
5.2.140.0030.04311.20
5.2.130.0030.05311.23
5.2.120.0030.05711.19
5.2.110.0030.05711.05
5.2.100.0130.03011.21
5.2.90.0000.03311.14
5.2.80.0070.06711.17
5.2.70.0070.04011.00
5.2.60.0030.06011.14
5.2.50.0130.05710.96
5.2.40.0070.05011.13
5.2.30.0070.06011.02
5.2.20.0070.04710.90
5.2.10.0100.05010.92
5.2.00.0070.05010.83
5.1.60.0070.04010.09
5.1.50.0030.02710.01
5.1.40.0030.02310.01
5.1.30.0070.05010.31
5.1.20.0000.04710.32
5.1.10.0030.0539.94
5.1.00.0000.04710.10
5.0.50.0100.0308.60
5.0.40.0000.0438.52
5.0.30.0000.0338.34
5.0.20.0070.0408.34
5.0.10.0030.0308.34
5.0.00.0030.0338.34
4.4.90.0030.0378.34
4.4.80.0030.0408.34
4.4.70.0100.0238.34
4.4.60.0130.0208.34
4.4.50.0100.0308.34
4.4.40.0000.0538.34
4.4.30.0030.0278.34
4.4.20.0070.0308.34
4.4.10.0100.0278.34
4.4.00.0070.0508.34
4.3.110.0000.0178.34
4.3.100.0070.0208.34
4.3.90.0000.0178.34
4.3.80.0000.0378.34
4.3.70.0000.0178.34
4.3.60.0030.0208.34
4.3.50.0000.0208.34
4.3.40.0030.0308.34
4.3.30.0000.0238.34
4.3.20.0000.0178.34
4.3.10.0000.0308.34
4.3.00.0070.0338.34

preferences:
43.14 ms | 400 KiB | 5 Q