3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A implements Serializable { public function serialize () { $serialized = array(); foreach($this as $prop => $val) { $serialized[$prop] = $val; } return serialize($serialized); //return serialize(get_object_vars($this)); } function unserialize($serialized) { foreach(unserialize($serialized) as $prop => $val) { $this->$prop = $val; } return true; } } class B extends A { public $A; } class C extends A { public $A; public $B; } $oC = new C(); $oC->A = new A(); $oC->B = new B(); $oC->B->A = $oC->A; echo $oC->A === $oC->B->A ? "yes" : "no", "\n"; $ser = serialize($oC); $new_oC = unserialize($ser); echo $new_oC->A === $new_oC->B->A ? "yes" : "no", "\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)
8.3.60.0110.00417.00
8.3.50.0120.00722.15
8.3.40.0150.00018.89
8.3.30.0090.00618.97
8.3.20.0000.00820.21
8.3.10.0040.00423.66
8.3.00.0060.00320.57
8.2.180.0140.00416.75
8.2.170.0180.00422.96
8.2.160.0090.01222.14
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00422.26
8.2.110.0060.00322.02
8.2.100.0040.00817.84
8.2.90.0000.00719.11
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0080.00317.93
8.2.50.0000.00818.07
8.2.40.0000.00818.03
8.2.30.0080.00018.00
8.2.20.0030.00617.79
8.2.10.0000.00719.41
8.2.00.0080.00017.75
8.1.280.0170.00325.92
8.1.270.0050.00322.01
8.1.260.0030.00526.35
8.1.250.0080.00028.09
8.1.240.0000.01018.71
8.1.230.0100.00019.07
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0000.00817.54
8.1.180.0060.00318.10
8.1.170.0040.00418.61
8.1.160.0090.00021.99
8.1.150.0070.00018.61
8.1.140.0040.00417.38
8.1.130.0000.00717.87
8.1.120.0000.00717.43
8.1.110.0070.00017.39
8.1.100.0000.00717.47
8.1.90.0060.00317.54
8.1.80.0030.00317.49
8.1.70.0000.00717.34
8.1.60.0000.01117.48
8.1.50.0060.00317.53
8.1.40.0000.00817.53
8.1.30.0030.00617.58
8.1.20.0040.00417.56
8.1.10.0040.00417.64
8.1.00.0030.00617.53
8.0.300.0070.00018.77
8.0.290.0040.00417.05
8.0.280.0030.00318.51
8.0.270.0000.00817.26
8.0.260.0060.00016.94
8.0.250.0030.00317.07
8.0.240.0030.00316.96
8.0.230.0050.00217.07
8.0.220.0000.00716.88
8.0.210.0000.00716.88
8.0.200.0030.00317.07
8.0.190.0080.00017.07
8.0.180.0040.00417.06
8.0.170.0030.00616.89
8.0.160.0080.00016.97
8.0.150.0030.00516.80
8.0.140.0080.00016.93
8.0.130.0000.00613.44
8.0.120.0030.00616.83
8.0.110.0080.00016.93
8.0.100.0060.00316.84
8.0.90.0040.00417.03
8.0.80.0060.00916.90
8.0.70.0000.00716.88
8.0.60.0000.00716.95
8.0.50.0050.00316.79
8.0.30.0110.00817.17
8.0.20.0100.01017.40
8.0.10.0000.00717.05
8.0.00.0070.01016.75
7.4.330.0020.00215.09
7.4.320.0000.00716.62
7.4.300.0060.00016.61
7.4.290.0060.00316.59
7.4.280.0040.00416.42
7.4.270.0000.00716.63
7.4.260.0000.00716.57
7.4.250.0080.00016.47
7.4.240.0040.00416.63
7.4.230.0030.00316.55
7.4.220.0150.01216.47
7.4.210.0050.00916.64
7.4.200.0000.00716.59
7.4.190.0040.00416.78
7.4.160.0150.00016.28
7.4.150.0070.01017.40
7.4.140.0100.00617.86
7.4.130.0090.00916.58
7.4.120.0130.00516.57
7.4.110.0060.01016.56
7.4.100.0150.00916.75
7.4.90.0060.01316.53
7.4.80.0110.01316.59
7.4.70.0080.00916.55
7.4.60.0120.00316.51
7.4.50.0030.00616.56
7.4.40.0030.01022.77
7.4.30.0050.01116.46
7.4.00.0000.01115.05
7.3.330.0050.00013.25
7.3.320.0030.00513.20
7.3.310.0000.00716.37
7.3.300.0070.00016.43
7.3.290.0080.00616.39
7.3.280.0080.01016.41
7.3.270.0170.00017.40
7.3.260.0170.00016.80
7.3.250.0080.00816.46
7.3.240.0110.00616.54
7.3.230.0100.00716.56
7.3.210.0140.00316.68
7.3.200.0070.01419.39
7.3.190.0060.01616.58
7.3.180.0090.01316.48
7.3.170.0040.01116.54
7.3.160.0100.00616.47
7.3.120.0100.00314.92
7.2.330.0090.00916.71
7.2.320.0070.01016.78
7.2.310.0060.01516.83
7.2.300.0100.00816.80
7.2.290.0110.01116.51
7.2.60.0030.00916.61
7.2.00.0060.00619.42
7.1.200.0070.00715.89
7.1.100.0060.00617.59
7.1.70.0070.00017.14
7.1.60.0030.02019.29
7.1.50.0070.01416.98
7.1.00.0070.07322.46
7.0.200.0070.00716.82
7.0.140.0000.07722.16
7.0.100.0370.07320.06
7.0.90.0170.08319.96
7.0.80.0100.04019.90
7.0.70.0130.04319.93
7.0.60.0030.03719.99
7.0.50.0030.04020.33
7.0.40.0070.03720.15
7.0.30.0100.03320.18
7.0.20.0000.04320.14
7.0.10.0070.03720.14
7.0.00.0100.04319.95
5.6.280.0030.07321.16
5.6.250.0070.06320.67
5.6.240.0130.04720.55
5.6.230.0100.04720.69
5.6.220.0100.03720.59
5.6.210.0000.04320.45
5.6.200.0070.03721.05
5.6.190.0100.03721.04
5.6.180.0070.05020.95
5.6.170.0130.03321.05
5.6.160.0030.04021.03
5.6.150.0030.04320.96
5.6.140.0070.04021.07
5.6.130.0100.05021.02
5.6.120.0100.03721.06
5.6.110.0070.04020.98
5.6.100.0030.04020.94
5.6.90.0030.04320.99
5.6.80.0100.05720.40
5.6.70.0030.04020.38
5.6.60.0070.03720.39
5.6.50.0070.04320.45
5.6.40.0070.04020.45
5.6.30.0100.03020.54
5.6.20.0100.03020.31
5.6.10.0030.03720.37
5.6.00.0100.06720.38
5.5.380.0130.07020.43
5.5.370.0070.03720.38
5.5.360.0000.04720.34
5.5.350.0100.04020.43
5.5.340.0070.04020.84
5.5.330.0000.04720.92
5.5.320.0030.04320.77
5.5.310.0030.04320.92
5.5.300.0030.04320.81
5.5.290.0100.03720.94
5.5.280.0030.04020.88
5.5.270.0000.05720.71
5.5.260.0100.03320.91
5.5.250.0070.03720.71
5.5.240.0000.04320.30
5.5.230.0030.03720.12
5.5.220.0130.03020.27
5.5.210.0300.02020.18
5.5.200.0100.03320.19
5.5.190.0030.03720.16
5.5.180.0030.04020.26
5.5.160.0000.04020.08
5.5.150.0030.05720.13
5.5.140.0030.08320.26
5.5.130.0100.07320.12
5.5.120.0030.08320.24
5.5.110.0030.09020.23
5.5.100.0030.05020.17
5.5.90.0100.07020.16
5.5.80.0170.06320.07
5.5.70.0070.07320.15
5.5.60.0130.05019.97
5.5.50.0030.05020.11
5.5.40.0170.07020.09
5.5.30.0100.07719.96
5.5.20.0000.06720.11
5.5.10.0030.04720.14
5.5.00.0100.07320.05
5.4.450.0030.04019.59
5.4.440.0030.04019.38
5.4.430.0030.04319.52
5.4.420.0100.03319.33
5.4.410.0000.03719.07
5.4.400.0030.03719.21
5.4.390.0000.04318.94
5.4.380.0030.03718.95
5.4.370.0030.03719.00
5.4.360.0070.04319.21
5.4.350.0030.04019.20
5.4.340.0000.04019.13
5.4.320.0070.03719.13
5.4.310.0070.03318.85
5.4.300.0100.06719.04
5.4.290.0030.08319.04
5.4.280.0200.03719.17
5.4.270.0070.05319.23
5.4.260.0100.06718.94
5.4.250.0100.07019.21
5.4.240.0100.04019.09
5.4.230.0130.07019.02
5.4.220.0070.04319.18
5.4.210.0130.05719.23
5.4.200.0100.06019.13
5.4.190.0070.07719.24
5.4.180.0100.06719.20
5.4.170.0130.06319.11
5.4.160.0100.07318.85
5.4.150.0070.07319.16
5.4.140.0130.07716.52
5.4.130.0100.06016.47
5.4.120.0130.06716.30
5.4.110.0070.07316.56
5.4.100.0100.07016.42
5.4.90.0030.07016.38
5.4.80.0070.07716.51
5.4.70.0100.06716.31
5.4.60.0100.07316.42
5.4.50.0030.08016.48
5.4.40.0070.06316.42
5.4.30.0030.04316.30
5.4.20.0070.07316.45
5.4.10.0100.06716.30
5.4.00.0130.06715.86
5.3.290.0070.05014.66
5.3.280.0070.08014.57
5.3.270.0070.07314.56
5.3.260.0170.06314.73
5.3.250.0170.07014.65
5.3.240.0070.05714.62
5.3.230.0200.06014.56
5.3.220.0100.05314.72
5.3.210.0100.07014.56
5.3.200.0100.05314.70
5.3.190.0070.07314.59
5.3.180.0030.04314.71
5.3.170.0130.06314.56
5.3.160.0100.07014.68
5.3.150.0100.06314.61
5.3.140.0030.08314.65
5.3.130.0070.07314.61
5.3.120.0070.04714.51
5.3.110.0130.08014.71
5.3.100.0030.08014.13
5.3.90.0200.06314.00
5.3.80.0100.07314.16
5.3.70.0030.06713.97
5.3.60.0070.05014.10
5.3.50.0070.04314.11
5.3.40.0070.05014.10
5.3.30.0070.07313.89
5.3.20.0070.07013.86
5.3.10.0170.04013.61
5.3.00.0030.04713.60
5.2.170.0000.03711.68
5.2.160.0130.05311.68
5.2.150.0100.05711.68
5.2.140.0000.05011.68
5.2.130.0030.06311.68
5.2.120.0070.03311.68
5.2.110.0070.05711.68
5.2.100.0000.03711.68
5.2.90.0100.03311.68
5.2.80.0100.06011.68
5.2.70.0030.03711.68
5.2.60.0000.07011.68
5.2.50.0100.05011.68
5.2.40.0070.05711.68
5.2.30.0030.05311.68
5.2.20.0070.06011.68
5.2.10.0070.07011.68
5.2.00.0000.06311.68
5.1.60.0130.04011.68
5.1.50.0030.05011.68
5.1.40.0070.03711.68
5.1.30.0130.04011.68
5.1.20.0070.04311.68
5.1.10.0000.05711.68
5.1.00.0030.05011.68
5.0.50.0130.03711.68
5.0.40.0070.02711.68
5.0.30.0030.07011.68
5.0.20.0000.04311.68
5.0.10.0030.04711.68
5.0.00.0030.06011.68
4.4.90.0000.04011.68
4.4.80.0000.02711.68
4.4.70.0000.03711.68
4.4.60.0070.03311.68
4.4.50.0000.03711.68
4.4.40.0070.04711.68
4.4.30.0000.03711.68
4.4.20.0070.03011.68
4.4.10.0000.02311.68
4.4.00.0030.04711.68
4.3.110.0070.03311.68
4.3.100.0030.03311.68
4.3.90.0000.03311.68
4.3.80.0000.05011.68
4.3.70.0000.03311.68
4.3.60.0000.02311.68
4.3.50.0070.03011.68
4.3.40.0000.05311.68
4.3.30.0030.03011.68
4.3.20.0000.02711.68
4.3.10.0030.03711.68
4.3.00.0000.03011.68

preferences:
43.67 ms | 401 KiB | 5 Q