3v4l.org

run code in 300+ PHP versions simultaneously
<?php // 'Child' object. class Child { public $property = 'foo'; } // 'Parent' object. class ParentA implements Serializable { public $rofl = 'foo'; public function serialize() { return serialize(array($this->rofl)); } public function unserialize($data) { list($this->rofl) = unserialize($data); } } class ParentB extends ParentA { public $collection; public function __construct(array $items) { $this->collection = array(); foreach ($items as $item) { $this->collection[] = $item; } } public function serialize() { return serialize([ 'foo' => $this->collection, 'parent' => parent::serialize() ]); } public function unserialize($data) { $data = unserialize($data); $this->collection = $data['foo']; parent::unserialize($data['parent']); } } // Wrapper object. class Wrapper { public $parent; public $children; public function __construct(ParentB $parent, array $children) { $this->parent = $parent; $this->children = array(); foreach ($children as $child) { $this->children[] = $child; } } } $children = [new Child(), new Child(), new Child()]; $parent = new ParentB($children); $wrapper = new Wrapper($parent, $children); $data = serialize($wrapper); var_dump(unserialize($data));

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)
8.3.60.0120.00316.75
8.3.50.0140.00521.92
8.3.40.0120.00318.83
8.3.30.0080.00619.04
8.3.20.0080.00020.20
8.3.10.0000.00823.67
8.3.00.0040.00419.26
8.2.180.0130.01018.26
8.2.170.0070.00722.96
8.2.160.0120.00320.46
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0100.00726.16
8.2.120.0040.00422.21
8.2.110.0100.00022.19
8.2.100.0060.00617.84
8.2.90.0040.00419.16
8.2.80.0030.00518.05
8.2.70.0060.00317.50
8.2.60.0060.00317.93
8.2.50.0080.00018.07
8.2.40.0000.00818.34
8.2.30.0040.00418.02
8.2.20.0030.00517.78
8.2.10.0040.00418.05
8.2.00.0000.00717.65
8.1.280.0100.01025.92
8.1.270.0040.00422.02
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00323.96
8.1.230.0070.00419.01
8.1.220.0000.00817.74
8.1.210.0000.00918.77
8.1.200.0040.00417.38
8.1.190.0050.00317.53
8.1.180.0000.00818.10
8.1.170.0090.00318.48
8.1.160.0000.00722.03
8.1.150.0040.00418.66
8.1.140.0070.00017.44
8.1.130.0030.00317.73
8.1.120.0030.00417.42
8.1.110.0000.00717.46
8.1.100.0030.00617.44
8.1.90.0000.00717.38
8.1.80.0000.00717.50
8.1.70.0030.00317.39
8.1.60.0060.00317.60
8.1.50.0050.00317.48
8.1.40.0080.00017.52
8.1.30.0000.00817.65
8.1.20.0050.00317.60
8.1.10.0080.00017.58
8.1.00.0050.00317.43
8.0.300.0050.00218.77
8.0.290.0040.00417.15
8.0.280.0050.00218.41
8.0.270.0000.00717.27
8.0.260.0030.00516.97
8.0.250.0000.00716.96
8.0.240.0000.00716.92
8.0.230.0070.00017.07
8.0.220.0000.00716.89
8.0.210.0030.00317.00
8.0.200.0030.00316.91
8.0.190.0030.00616.93
8.0.180.0040.00416.97
8.0.170.0000.00816.99
8.0.160.0040.00416.86
8.0.150.0030.00317.00
8.0.140.0000.00716.89
8.0.130.0060.00013.34
8.0.120.0050.00317.00
8.0.110.0000.00716.99
8.0.100.0000.00716.84
8.0.90.0040.00416.98
8.0.80.0060.00917.02
8.0.70.0050.00316.92
8.0.60.0000.00816.96
8.0.50.0000.00717.03
8.0.30.0120.00817.28
8.0.20.0140.00417.40
8.0.10.0050.00317.16
8.0.00.0180.00916.88
7.4.330.0030.00315.18
7.4.320.0030.00316.55
7.4.300.0060.00016.54
7.4.290.0040.00416.48
7.4.280.0050.00516.52
7.4.270.0070.00016.64
7.4.260.0040.00416.61
7.4.250.0070.00016.45
7.4.240.0030.00316.57
7.4.230.0030.00316.43
7.4.220.0090.00916.56
7.4.210.0060.00916.58
7.4.200.0000.00816.63
7.4.190.0040.00416.68
7.4.160.0130.00916.60
7.4.150.0120.00617.40
7.4.140.0110.00917.86
7.4.130.0130.00616.62
7.4.120.0120.00516.51
7.4.110.0090.00916.63
7.4.100.0160.00316.41
7.4.90.0100.00716.63
7.4.80.0090.01219.39
7.4.70.0090.00916.60
7.4.60.0100.00516.69
7.4.50.0040.00416.49
7.4.40.0100.00722.77
7.4.30.0080.00816.61
7.4.00.0060.00914.93
7.3.330.0000.00513.33
7.3.320.0000.00713.39
7.3.310.0040.00416.38
7.3.300.0030.00316.48
7.3.290.0070.00716.48
7.3.280.0100.00616.45
7.3.270.0060.01317.40
7.3.260.0130.00316.44
7.3.250.0080.01216.52
7.3.240.0090.00816.45
7.3.230.0060.01116.47
7.3.210.0100.00716.55
7.3.200.0030.01419.39
7.3.190.0090.01316.41
7.3.180.0120.00316.51
7.3.170.0060.01316.39
7.3.160.0060.00916.61
7.3.120.0000.01814.84
7.2.330.0030.01416.70
7.2.320.0090.01016.61
7.2.310.0140.00716.80
7.2.300.0150.00316.78
7.2.290.0080.00916.82
7.2.60.0030.01016.89
7.2.00.0000.01519.61
7.1.200.0000.01315.96
7.1.100.0110.00318.19
7.1.70.0000.00817.09
7.1.60.0110.01419.33
7.1.50.0030.01016.85
7.1.00.0070.07322.57
7.0.200.0040.00416.84
7.0.140.0070.07022.08
7.0.100.0030.04020.06
7.0.90.0030.04020.16
7.0.80.0000.04319.97
7.0.70.0070.04320.02
7.0.60.0100.04020.09
7.0.50.0030.04320.27
7.0.40.0030.04320.13
7.0.30.0070.04720.03
7.0.20.0070.06720.13
7.0.10.0030.08320.02
7.0.00.0070.08720.07
5.6.250.0100.03720.55
5.6.240.0070.04020.78
5.6.230.0030.04020.78
5.6.220.0070.04020.77
5.6.210.0030.04020.79
5.6.200.0100.03721.11
5.6.190.0070.04320.96
5.6.180.0030.04321.05
5.6.170.0000.04021.10
5.6.160.0000.05721.08
5.6.150.0030.08721.19
5.6.140.0030.04320.98
5.6.130.0030.05320.96
5.6.120.0000.05721.02
5.6.110.0030.07321.05
5.6.100.0100.07721.02
5.6.90.0170.04021.03
5.6.80.0100.08720.50
5.6.70.0130.08020.46
5.6.60.0030.07320.55
5.6.50.0000.07320.36
5.6.40.0070.08020.36
5.6.30.0200.08320.55
5.6.20.0100.07020.45
5.6.10.0070.06720.41
5.6.00.0100.07720.41
5.5.380.0070.04320.43
5.5.370.0030.04020.52
5.5.360.0000.04320.43
5.5.350.0030.04020.47
5.5.340.0030.04720.93
5.5.330.0070.04020.80
5.5.320.0030.03720.90
5.5.310.0130.07720.80
5.5.300.0100.08020.91
5.5.290.0070.05020.89
5.5.280.0070.06720.66
5.5.270.0030.05320.74
5.5.260.0070.05020.92
5.5.250.0130.06020.70
5.5.240.0030.07720.05
5.5.230.0070.03720.26
5.5.220.0100.07720.26
5.5.210.0030.04320.04
5.5.200.0170.06720.25
5.5.190.0030.08320.29
5.5.180.0130.07320.26
5.5.160.0130.05720.14
5.5.150.0070.08020.16
5.5.140.0170.06020.14
5.5.130.0030.07020.27
5.5.120.0030.05020.24
5.5.110.0100.04320.28
5.5.100.0030.06020.09
5.5.90.0070.05720.11
5.5.80.0130.05320.18
5.5.70.0100.08020.14
5.5.60.0070.06720.07
5.5.50.0070.08020.10
5.5.40.0100.07319.93
5.5.30.0100.06320.11
5.5.20.0070.07020.12
5.5.10.0130.03720.02
5.5.00.0000.05719.98
5.4.450.0070.04019.41
5.4.440.0130.07019.23
5.4.430.0030.04719.21
5.4.420.0070.04019.14
5.4.410.0130.03319.07
5.4.400.0100.03318.95
5.4.390.0070.05718.85
5.4.380.0070.06719.09
5.4.370.0070.07719.03
5.4.360.0070.04319.04
5.4.350.0070.04318.96
5.4.340.0000.07319.16
5.4.320.0100.07719.03
5.4.310.0070.08019.11
5.4.300.0030.04719.25
5.4.290.0030.04319.18
5.4.280.0030.05718.83
5.4.270.0030.08018.89
5.4.260.0070.06319.12
5.4.250.0070.04019.15
5.4.240.0030.07319.02
5.4.230.0170.06319.20
5.4.220.0070.05319.04
5.4.210.0100.05019.24
5.4.200.0100.07319.12
5.4.190.0030.08018.93
5.4.180.0030.05019.03
5.4.170.0100.07019.22
5.4.160.0030.08019.02
5.4.150.0130.05719.10
5.4.140.0100.05716.36
5.4.130.0070.04716.41
5.4.120.0170.04016.36
5.4.110.0030.04316.38
5.4.100.0030.07316.30
5.4.90.0070.07316.37
5.4.80.0130.05316.38
5.4.70.0100.07016.47
5.4.60.0000.07316.32
5.4.50.0070.04016.38
5.4.40.0070.04716.53
5.4.30.0030.06316.34
5.4.20.0070.03316.45
5.4.10.0100.04716.45
5.4.00.0030.03315.94
5.3.290.0030.08314.75
5.3.280.0230.05714.63
5.3.270.0100.07314.73
5.3.260.0030.08014.73
5.3.250.0100.04714.72
5.3.240.0070.07014.65
5.3.230.0100.07314.71
5.3.220.0030.04314.63
5.3.210.0070.07314.64
5.3.200.0030.07714.51
5.3.190.0030.08014.61
5.3.180.0130.07014.68
5.3.170.0070.07014.64
5.3.160.0070.07314.51
5.3.150.0070.07314.51
5.3.140.0130.06714.56
5.3.130.0130.07714.53
5.3.120.0000.04014.62
5.3.110.0030.07714.58
5.3.100.0070.07014.12
5.3.90.0100.06714.06
5.3.80.0130.04014.03
5.3.70.0100.06014.17
5.3.60.0100.06714.13
5.3.50.0070.04013.90
5.3.40.0070.05014.04
5.3.30.0070.07013.91
5.3.20.0000.04713.75
5.3.10.0100.06713.73
5.3.00.0070.04713.57
5.2.170.0100.06012.39
5.2.160.0030.05312.39
5.2.150.0070.03012.39
5.2.140.0030.04712.39
5.2.130.0030.06312.39
5.2.120.0100.05312.39
5.2.110.0100.05312.39
5.2.100.0030.03712.39
5.2.90.0130.02712.39
5.2.80.0130.04012.39
5.2.70.0030.06012.39
5.2.60.0070.03312.39
5.2.50.0070.05312.39
5.2.40.0030.03312.39
5.2.30.0070.06012.39
5.2.20.0100.05712.39
5.2.10.0070.05712.39
5.2.00.0030.06312.39
5.1.60.0070.05012.39
5.1.50.0000.02712.39
5.1.40.0030.04712.39
5.1.30.0030.03012.39
5.1.20.0100.05012.39
5.1.10.0030.05312.39
5.1.00.0030.03012.39
5.0.50.0070.04312.39
5.0.40.0000.05012.39
5.0.30.0030.06712.39
5.0.20.0030.02312.39
5.0.10.0000.03712.39
5.0.00.0030.04012.39
4.4.90.0000.02012.39
4.4.80.0030.03312.39
4.4.70.0000.02012.39
4.4.60.0030.03012.39
4.4.50.0030.02012.39
4.4.40.0030.04712.39
4.4.30.0000.02012.39
4.4.20.0000.02012.39
4.4.10.0030.03012.39
4.4.00.0070.02012.39
4.3.110.0000.03012.39
4.3.100.0000.03012.39
4.3.90.0000.03712.39
4.3.80.0030.05312.39
4.3.70.0030.03312.39
4.3.60.0030.02312.39
4.3.50.0030.02012.39
4.3.40.0000.05712.39
4.3.30.0030.02312.39
4.3.20.0100.02012.39
4.3.10.0030.01712.39
4.3.00.0000.03012.39

preferences:
46.81 ms | 401 KiB | 5 Q