3v4l.org

run code in 300+ PHP versions simultaneously
<?php class ObjectWithReferences { protected $var1; protected $var2; public function __construct() { $this->var1 = new StdClass(); $this->var2 = $this->var1; } } class WrapperObject implements Serializable { private $obj; public function setObject($obj) { $this->obj = $obj; } public function getObject() { return $this->obj; } public function serialize() { unserialize(serialize(new \StdClass)); // this fucks up things return serialize($this->obj); } public function unserialize($serialized) { $this->obj = unserialize($serialized); } } $owr = new ObjectWithReferences(); $wrapper = new WrapperObject(); $wrapper->setObject($owr); var_dump($wrapper->getObject()); $wrapper = unserialize(serialize($wrapper)); var_dump($wrapper->getObject());

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)
8.3.60.0110.01116.63
8.3.50.0150.00622.13
8.3.40.0070.00718.78
8.3.30.0070.00718.92
8.3.20.0050.00320.16
8.3.10.0060.00323.70
8.3.00.0080.00020.86
8.2.180.0120.00616.88
8.2.170.0090.00622.96
8.2.160.0140.00020.53
8.2.150.0040.00424.18
8.2.140.0060.00924.66
8.2.130.0040.00426.16
8.2.120.0080.00020.93
8.2.110.0040.00722.24
8.2.100.0060.00619.32
8.2.90.0040.00419.22
8.2.80.0030.00617.97
8.2.70.0080.00317.50
8.2.60.0080.00017.93
8.2.50.0000.00818.07
8.2.40.0040.00419.95
8.2.30.0070.00018.33
8.2.20.0000.00817.62
8.2.10.0040.00417.95
8.2.00.0060.00317.76
8.1.280.0140.00025.92
8.1.270.0060.00323.79
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0060.00323.79
8.1.230.0000.01119.15
8.1.220.0090.00017.76
8.1.210.0050.00318.77
8.1.200.0070.00317.48
8.1.190.0030.00517.35
8.1.180.0050.00318.10
8.1.170.0040.00418.53
8.1.160.0040.00421.94
8.1.150.0030.00518.65
8.1.140.0030.00617.33
8.1.130.0070.00317.74
8.1.120.0050.00317.52
8.1.110.0040.00417.55
8.1.100.0040.00417.48
8.1.90.0020.00517.50
8.1.80.0000.00817.38
8.1.70.0000.00717.43
8.1.60.0050.00317.59
8.1.50.0000.00817.47
8.1.40.0040.00417.42
8.1.30.0090.00017.70
8.1.20.0060.00317.68
8.1.10.0040.00417.42
8.1.00.0030.00617.48
8.0.300.0060.00318.77
8.0.290.0060.00316.75
8.0.280.0030.00318.54
8.0.270.0000.00717.27
8.0.260.0030.00317.20
8.0.250.0040.00416.93
8.0.240.0000.00716.91
8.0.230.0040.00416.94
8.0.220.0030.00316.91
8.0.210.0000.00716.93
8.0.200.0030.00317.05
8.0.190.0030.00517.04
8.0.180.0000.00716.98
8.0.170.0030.00616.94
8.0.160.0040.00416.84
8.0.150.0040.00416.89
8.0.140.0070.00016.82
8.0.130.0060.00013.45
8.0.120.0060.00316.84
8.0.110.0040.00416.95
8.0.100.0040.00416.86
8.0.90.0040.00416.82
8.0.80.0060.00917.00
8.0.70.0070.00017.01
8.0.60.0000.00716.94
8.0.50.0040.00416.98
8.0.30.0080.01017.04
8.0.20.0060.01217.40
8.0.10.0040.00417.05
8.0.00.0060.01116.61
7.4.330.0030.00315.08
7.4.320.0030.00316.64
7.4.300.0060.00016.48
7.4.290.0000.00716.58
7.4.280.0040.00416.52
7.4.270.0030.00316.48
7.4.260.0000.00716.49
7.4.250.0000.00716.54
7.4.240.0070.00216.59
7.4.230.0000.00716.51
7.4.220.0070.01116.62
7.4.210.0100.00716.63
7.4.200.0040.00416.53
7.4.160.0070.01116.44
7.4.150.0160.00917.40
7.4.140.0080.01517.86
7.4.130.0090.00816.57
7.4.120.0090.01016.71
7.4.110.0110.00716.52
7.4.100.0140.00716.64
7.4.90.0110.00716.48
7.4.80.0060.01519.39
7.4.70.0110.01116.52
7.4.60.0180.00616.42
7.4.50.0030.00616.48
7.4.40.0060.01216.65
7.4.30.0110.00716.77
7.4.00.0040.01115.14
7.3.330.0050.00013.22
7.3.320.0070.00013.27
7.3.310.0070.00016.30
7.3.300.0000.00716.37
7.3.290.0060.00916.29
7.3.280.0100.00716.40
7.3.270.0030.01417.40
7.3.260.0040.01416.43
7.3.250.0090.01116.36
7.3.240.0060.01116.61
7.3.230.0100.00716.49
7.3.210.0200.00316.48
7.3.200.0060.01019.39
7.3.190.0160.02616.41
7.3.180.0130.00316.58
7.3.170.0070.01116.44
7.3.160.0130.00316.55
7.3.120.0060.00914.79
7.3.110.0070.01014.66
7.3.100.0060.00614.71
7.3.90.0040.01114.88
7.3.80.0000.00814.84
7.3.70.0000.01414.60
7.3.60.0030.01114.79
7.3.50.0030.01014.86
7.3.40.0060.00614.93
7.3.30.0070.00714.73
7.3.20.0130.00016.73
7.3.10.0030.01016.76
7.3.00.0070.00716.63
7.2.330.0120.00616.46
7.2.320.0140.00316.66
7.2.310.0160.00716.89
7.2.300.0080.00816.86
7.2.290.0030.01316.53
7.2.240.0140.00315.32
7.2.230.0030.00915.18
7.2.220.0070.00414.68
7.2.210.0030.01314.99
7.2.200.0030.00614.65
7.2.190.0000.01715.09
7.2.180.0110.00414.92
7.2.170.0030.00814.88
7.2.160.0030.00715.30
7.2.150.0040.01216.88
7.2.140.0080.00816.62
7.2.130.0000.01416.94
7.2.120.0040.01117.03
7.2.110.0040.01116.62
7.2.100.0080.00816.72
7.2.90.0080.00816.63
7.2.80.0040.01216.54
7.2.70.0030.01017.04
7.2.60.0040.01016.75
7.2.50.0060.00816.94
7.2.40.0060.00916.93
7.2.30.0030.01016.89
7.2.20.0040.01416.77
7.2.10.0040.00817.05
7.2.00.0080.00816.89
7.1.330.0100.00315.94
7.1.320.0090.00315.54
7.1.310.0000.01315.39
7.1.300.0040.00415.48
7.1.290.0030.00915.69
7.1.280.0060.00915.66
7.1.270.0070.00715.61
7.1.260.0000.01215.84
7.1.250.0030.00615.75
7.1.200.0000.00915.82
7.1.100.0030.00618.26
7.1.70.0030.00516.84
7.1.60.0070.01819.70
7.1.50.0030.02217.05
7.1.00.0000.08022.48
7.0.200.0040.00416.75
7.0.140.0030.06322.04
7.0.100.0030.04019.95
7.0.90.0070.04019.91
7.0.80.0270.03719.92
7.0.70.0100.04019.91
7.0.60.0070.06719.98
7.0.50.0130.03720.36
7.0.40.0100.03320.15
7.0.30.0070.05720.18
7.0.20.0000.06019.95
7.0.10.0070.05720.14
7.0.00.0100.06720.07
5.6.280.0070.07020.93
5.6.250.0070.06320.63
5.6.240.0030.04320.69
5.6.230.0030.04320.64
5.6.220.0100.03720.69
5.6.210.0030.04020.78
5.6.200.0030.04320.95
5.6.190.0000.04721.08
5.6.180.0070.03721.09
5.6.170.0000.06321.02
5.6.160.0030.05021.06
5.6.150.0070.04721.02
5.6.140.0030.04021.01
5.6.130.0100.03720.95
5.6.120.0070.04020.95
5.6.110.0030.05721.06
5.6.100.0030.04321.02
5.6.90.0000.04720.94
5.6.80.0000.04020.41
5.6.70.0100.03320.45
5.6.60.0070.06720.51
5.6.50.0000.04320.50
5.6.40.0100.03320.41
5.6.30.0070.03720.39
5.6.20.0130.06720.39
5.6.10.0170.07320.38
5.6.00.0100.07020.30
5.5.380.0030.04020.43
5.5.370.0030.04020.37
5.5.360.0070.04720.37
5.5.350.0030.04020.43
5.5.340.0070.05720.93
5.5.330.0130.04720.91
5.5.320.0070.04320.86
5.5.310.0030.04320.66
5.5.300.0100.07320.82
5.5.290.0030.05320.77
5.5.280.0130.03720.87
5.5.270.0000.04720.92
5.5.260.0030.04320.89
5.5.250.0000.04720.70
5.5.240.0070.03720.19
5.5.230.0030.04020.19
5.5.220.0030.03720.26
5.5.210.0070.07020.32
5.5.200.0070.04020.18
5.5.190.0100.07020.14
5.5.180.0070.07720.23
5.5.160.0130.07720.27
5.5.150.0030.07320.23
5.5.140.0130.07720.23
5.5.130.0000.07720.27
5.5.120.0030.08720.16
5.5.110.0030.08020.18
5.5.100.0130.06320.18
5.5.90.0170.07320.09
5.5.80.0070.07720.02
5.5.70.0100.06720.01
5.5.60.0100.07720.07
5.5.50.0130.08020.13
5.5.40.0100.06720.06
5.5.30.0070.07720.07
5.5.20.0070.08020.16
5.5.10.0100.07719.98
5.5.00.0100.07720.07
5.4.450.0000.04019.38
5.4.440.0070.04019.37
5.4.430.0000.04319.38
5.4.420.0030.04019.36
5.4.410.0100.03319.07
5.4.400.0000.04018.91
5.4.390.0030.04019.18
5.4.380.0130.03719.13
5.4.370.0070.04319.09
5.4.360.0070.03718.87
5.4.350.0070.03719.04
5.4.340.0070.03318.95
5.4.320.0030.05019.21
5.4.310.0100.07019.13
5.4.300.0130.07018.88
5.4.290.0030.05318.95
5.4.280.0130.07718.84
5.4.270.0030.08018.87
5.4.260.0130.04319.04
5.4.250.0100.07318.87
5.4.240.0030.06718.95
5.4.230.0070.08019.04
5.4.220.0070.04719.07
5.4.210.0130.06719.11
5.4.200.0000.06719.14
5.4.190.0070.06718.91
5.4.180.0100.07318.88
5.4.170.0170.06318.86
5.4.160.0200.06318.83
5.4.150.0070.07719.07
5.4.140.0070.07316.25
5.4.130.0130.06316.38
5.4.120.0100.07316.42
5.4.110.0000.08316.36
5.4.100.0130.06316.38
5.4.90.0100.08016.36
5.4.80.0000.07716.30
5.4.70.0130.07016.27
5.4.60.0130.06716.47
5.4.50.0070.07016.36
5.4.40.0030.04716.46
5.4.30.0000.06716.35
5.4.20.0100.07016.29
5.4.10.0130.06716.39
5.4.00.0030.06315.85
5.3.290.0100.07014.68
5.3.280.0030.07014.60
5.3.270.0030.07714.68
5.3.260.0100.08014.63
5.3.250.0070.08314.64
5.3.240.0100.04314.65
5.3.230.0070.06714.61
5.3.220.0130.06014.63
5.3.210.0030.08314.54
5.3.200.0070.05714.56
5.3.190.0070.08014.61
5.3.180.0130.06714.50
5.3.170.0070.08014.57
5.3.160.0100.07314.64
5.3.150.0030.08014.70
5.3.140.0070.07314.66
5.3.130.0100.08014.58
5.3.120.0070.05014.48
5.3.110.0200.05714.58
5.3.100.0100.07314.15
5.3.90.0100.07014.09
5.3.80.0070.07014.18
5.3.70.0030.06314.10
5.3.60.0070.06714.02
5.3.50.0000.08014.08
5.3.40.0070.07714.10
5.3.30.0030.07713.95
5.3.20.0030.05313.73
5.3.10.0030.07313.68
5.3.00.0130.07313.79
5.2.170.0070.06012.18
5.2.160.0000.06012.18
5.2.150.0000.06712.18
5.2.140.0030.06712.18
5.2.130.0030.04012.18
5.2.120.0100.05712.18
5.2.110.0100.02712.18
5.2.100.0070.06012.18
5.2.90.0030.06312.18
5.2.80.0030.04712.18
5.2.70.0030.06312.18
5.2.60.0070.03712.18
5.2.50.0130.05312.18
5.2.40.0070.06312.18
5.2.30.0030.04312.18
5.2.20.0000.06312.18
5.2.10.0100.05312.18
5.2.00.0100.05712.18
5.1.60.0030.04312.18
5.1.50.0030.05312.18
5.1.40.0030.05712.18
5.1.30.0100.05012.18
5.1.20.0130.05712.18
5.1.10.0100.04012.18
5.1.00.0130.03312.18
5.0.50.0030.05012.18
5.0.40.0000.04712.18
5.0.30.0070.05012.18
5.0.20.0100.03712.18
5.0.10.0070.04312.18
5.0.00.0030.06012.18
4.4.90.0000.03712.18
4.4.80.0030.03712.18
4.4.70.0000.02312.18
4.4.60.0000.03012.18
4.4.50.0000.04012.18
4.4.40.0030.05312.18
4.4.30.0070.03312.18
4.4.20.0030.02712.18
4.4.10.0030.02712.18
4.4.00.0000.04312.18
4.3.110.0030.03312.18
4.3.100.0000.02312.18
4.3.90.0000.03712.18
4.3.80.0030.05012.18
4.3.70.0000.01712.18
4.3.60.0000.02712.18
4.3.50.0070.02312.18
4.3.40.0030.02712.18
4.3.30.0000.02712.18
4.3.20.0000.02712.18
4.3.10.0030.03012.18
4.3.00.0030.03312.18

preferences:
43.39 ms | 401 KiB | 5 Q