3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $y = 'b'; public $foo; public $bar; public $x = "A"; } class B { public $baz; function __wakeup() { echo "Within wakeup\n"; var_dump($this->baz); echo "Done wakeup\n"; } } $a = new A(); $b = new B(); $a->foo = $b; $a->bar = "something"; $b->baz = $a; var_dump($a); $unserialized = unserialize(serialize([$a])); echo "After unserialize\n"; var_dump($unserialized);

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)
8.4.120.0120.00720.66
8.4.110.0120.00919.07
8.4.100.0120.00917.86
8.4.90.0090.01020.40
8.4.80.0070.00720.77
8.4.70.0030.00518.85
8.4.60.0100.00920.52
8.4.50.0110.00720.45
8.4.40.0090.01023.81
8.4.30.0100.01022.31
8.4.20.0140.00717.84
8.4.10.0150.00419.45
8.3.250.0080.01117.01
8.3.240.0120.00816.43
8.3.230.0050.00316.74
8.3.220.0090.01018.87
8.3.210.0100.01016.71
8.3.200.0060.00316.44
8.3.190.0090.00516.92
8.3.180.0130.00518.80
8.3.170.0140.00416.99
8.3.160.0150.00319.05
8.3.150.0100.00517.25
8.3.140.0000.00916.53
8.3.130.0090.00018.41
8.3.120.0060.00320.68
8.3.110.0060.01320.94
8.3.100.0070.00724.06
8.3.90.0110.00026.77
8.3.80.0030.00617.97
8.3.70.0070.00716.36
8.3.60.0070.01018.30
8.3.50.0150.00422.21
8.3.40.0110.00418.79
8.3.30.0030.01218.68
8.3.20.0040.00420.21
8.3.10.0000.00821.86
8.3.00.0040.00419.97
8.2.290.0120.00617.32
8.2.280.0050.00320.04
8.2.270.0190.00016.46
8.2.260.0060.01016.93
8.2.250.0000.00818.38
8.2.240.0130.00316.95
8.2.230.0050.00322.58
8.2.220.0050.00537.54
8.2.210.0080.00026.77
8.2.200.0050.00518.54
8.2.190.0110.00716.75
8.2.180.0130.00316.50
8.2.170.0030.01322.96
8.2.160.0110.01120.99
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0080.00022.11
8.2.120.0070.00026.35
8.2.110.0070.00319.29
8.2.100.0080.00318.16
8.2.90.0000.00819.08
8.2.80.0000.00817.97
8.2.70.0000.00917.63
8.2.60.0080.00018.03
8.2.50.0080.00318.10
8.2.40.0040.00420.45
8.2.30.0050.00320.91
8.2.20.0030.00617.74
8.2.10.0040.00418.06
8.2.00.0070.00017.99
8.1.330.0120.00716.30
8.1.320.0120.00716.13
8.1.310.0070.00316.84
8.1.300.0130.00618.16
8.1.290.0060.00330.84
8.1.280.0100.00725.92
8.1.270.0080.00023.79
8.1.260.0080.00028.09
8.1.250.0000.00828.09
8.1.240.0090.00019.27
8.1.230.0110.00019.61
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.36
8.1.190.0090.00017.35
8.1.180.0000.00818.10
8.1.170.0000.00818.62
8.1.160.0040.00422.16
8.1.150.0040.00418.79
8.1.140.0000.00719.58
8.1.130.0000.00717.61
8.1.120.0020.00517.51
8.1.110.0040.00417.34
8.1.100.0000.00717.49
8.1.90.0100.00017.46
8.1.80.0040.00417.46
8.1.70.0000.00717.35
8.1.60.0000.00917.46
8.1.50.0080.00017.42
8.1.40.0030.00517.56
8.1.30.0040.00417.53
8.1.20.0040.00417.57
8.1.10.0000.00717.62
8.1.00.0040.00417.39
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0030.00318.46
8.0.270.0070.00017.32
8.0.260.0000.00617.19
8.0.250.0000.00716.92
8.0.240.0060.00016.94
8.0.230.0070.00016.99
8.0.220.0030.00316.99
8.0.210.0040.00716.91
8.0.200.0000.00717.05
8.0.190.0020.00516.93
8.0.180.0050.00216.93
8.0.170.0030.00516.80
8.0.160.0030.00416.96
8.0.150.0040.00416.89
8.0.140.0000.00816.91
8.0.130.0030.00313.34
8.0.120.0000.00717.00
8.0.110.0000.00716.82
8.0.100.0040.00416.90
8.0.90.0030.00616.83
8.0.80.0080.00816.98
8.0.70.0050.00317.01
8.0.60.0000.00716.85
8.0.50.0040.00416.86
8.0.30.0110.00917.22
8.0.20.0100.01117.40
8.0.10.0050.00216.88
8.0.00.0090.00916.55
7.4.330.0030.00315.13
7.4.320.0030.00316.52
7.4.300.0000.00616.59
7.4.290.0030.00316.45
7.4.280.0000.00716.57
7.4.270.0070.00016.50
7.4.260.0030.00316.57
7.4.250.0070.00016.47
7.4.240.0000.00716.45
7.4.230.0000.00716.57
7.4.220.0070.01116.46
7.4.210.0000.01516.56
7.4.200.0030.00316.49
7.4.160.0110.00616.52
7.4.150.0120.00617.40
7.4.140.0120.00817.86
7.4.130.0110.00916.47
7.4.120.0090.00916.57
7.4.110.0120.00616.36
7.4.100.0180.00316.69
7.4.90.0170.00316.60
7.4.80.0100.01019.39
7.4.70.0150.00316.57
7.4.60.0090.01416.57
7.4.50.0030.00716.20
7.4.40.0120.00616.67
7.4.30.0150.00316.62
7.4.00.0070.01014.82
7.3.330.0070.00013.24
7.3.320.0000.00613.32
7.3.310.0000.00716.41
7.3.300.0000.00716.27
7.3.290.0040.01016.24
7.3.280.0110.00916.27
7.3.270.0110.00717.40
7.3.260.0170.00316.54
7.3.250.0160.00616.41
7.3.240.0110.00616.53
7.3.230.0130.01016.63
7.3.210.0060.01116.54
7.3.200.0100.01316.65
7.3.190.0060.00916.55
7.3.180.0150.00316.30
7.3.170.0100.00616.52
7.3.160.0060.01316.61
7.2.330.0090.01116.89
7.2.320.0030.01316.60
7.2.310.0060.01116.61
7.2.300.0120.01216.62
7.2.290.0040.01716.47
7.2.60.0030.01316.99
7.2.00.0000.01519.35
7.1.200.0000.01215.61
7.1.100.0090.00618.22
7.1.70.0000.01017.04
7.1.60.0070.00419.75
7.1.50.0170.00717.00
7.1.00.0030.07722.43
7.0.200.0000.00916.84
7.0.90.0900.06720.02
7.0.80.1730.06319.93
7.0.70.0230.06020.03
7.0.60.0200.08020.07
7.0.50.0300.07320.37
7.0.40.0200.08720.38
7.0.30.0270.06020.22
7.0.20.0400.07720.22
7.0.10.0200.06020.34
7.0.00.0300.04720.44
5.6.230.0200.08320.64
5.6.220.0170.08020.61
5.6.210.0070.09020.66
5.6.200.0170.07721.10
5.6.190.0170.07721.07
5.6.180.0100.06721.04
5.6.170.0200.05721.04
5.6.160.0230.05721.13
5.6.150.0170.05721.06
5.6.140.0170.06021.20
5.6.130.0370.06321.14
5.6.120.0200.06721.07
5.6.110.0200.05721.09
5.6.100.0070.06321.07
5.6.90.0200.06021.00

preferences:
77.21 ms | 406 KiB | 6 Q