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)
8.3.70.0210.00016.63
8.3.60.0040.01118.81
8.3.50.0160.00321.99
8.3.40.0110.00318.96
8.3.30.0070.01119.02
8.3.20.0040.00418.62
8.3.10.0080.00021.28
8.3.00.0030.00521.82
8.2.180.0120.00316.63
8.2.170.0140.00722.96
8.2.160.0070.01020.52
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00220.53
8.2.110.0060.00320.58
8.2.100.0040.00817.84
8.2.90.0040.00419.23
8.2.80.0000.00817.97
8.2.70.0080.00017.59
8.2.60.0000.00818.04
8.2.50.0000.00818.07
8.2.40.0060.00318.03
8.2.30.0000.00719.36
8.2.20.0000.00717.79
8.2.10.0050.00317.68
8.2.00.0030.00717.67
8.1.280.0090.00625.92
8.1.270.0080.00023.99
8.1.260.0070.01126.35
8.1.250.0000.00828.09
8.1.240.0150.00622.52
8.1.230.0040.00820.90
8.1.220.0050.00318.77
8.1.210.0050.00318.95
8.1.200.0030.00617.47
8.1.190.0040.00417.52
8.1.180.0080.00018.10
8.1.170.0040.00418.50
8.1.160.0040.00418.95
8.1.150.0030.00618.56
8.1.140.0000.00717.48
8.1.130.0070.00017.84
8.1.120.0040.00417.39
8.1.110.0050.00217.46
8.1.100.0040.00417.39
8.1.90.0000.00817.49
8.1.80.0000.00817.36
8.1.70.0040.00417.43
8.1.60.0060.00617.48
8.1.50.0000.00817.52
8.1.40.0040.00417.52
8.1.30.0060.00317.51
8.1.20.0030.00617.67
8.1.10.0040.00417.58
8.1.00.0080.00017.43
8.0.300.0000.00820.00
8.0.290.0040.00417.18
8.0.280.0000.00718.51
8.0.270.0080.00017.27
8.0.260.0030.00316.91
8.0.250.0040.00416.93
8.0.240.0030.00517.05
8.0.230.0000.00717.07
8.0.220.0030.00316.96
8.0.210.0030.00617.01
8.0.200.0030.00617.08
8.0.190.0040.00416.95
8.0.180.0050.00317.03
8.0.170.0040.00416.90
8.0.160.0030.00316.95
8.0.150.0000.00816.89
8.0.140.0030.00516.84
8.0.130.0060.00013.36
8.0.120.0070.00016.95
8.0.110.0040.00417.04
8.0.100.0030.00516.86
8.0.90.0070.00016.93
8.0.80.0070.00716.90
8.0.70.0000.00716.96
8.0.60.0080.00016.75
8.0.50.0050.00216.88
8.0.30.0120.00616.90
8.0.20.0080.01117.40
8.0.10.0000.00816.99
8.0.00.0090.00816.78
7.4.330.0060.00016.79
7.4.320.0030.00516.64
7.4.300.0030.00316.61
7.4.290.0030.00316.68
7.4.280.0000.00716.63
7.4.270.0030.00316.49
7.4.260.0030.00313.28
7.4.250.0040.00416.34
7.4.240.0030.00316.52
7.4.230.0070.00016.45
7.4.220.0090.00916.53
7.4.210.0030.01516.59
7.4.200.0000.00716.52
7.4.190.0000.00716.71
7.4.160.0080.00816.57
7.4.150.0100.00717.40
7.4.140.0110.00617.86
7.4.130.0080.01516.43
7.4.120.0120.00916.58
7.4.110.0100.00616.40
7.4.100.0100.01016.57
7.4.90.0150.00616.72
7.4.80.0170.00319.39
7.4.70.0050.01116.46
7.4.60.0100.00716.49
7.4.50.0000.00816.63
7.4.40.0140.00022.77
7.4.30.0070.01416.45
7.4.00.0100.00715.10
7.3.330.0030.00313.38
7.3.320.0040.00413.19
7.3.310.0030.00316.24
7.3.300.0000.00716.32
7.3.290.0070.01316.32
7.3.280.0130.00716.36
7.3.270.0140.00817.40
7.3.260.0100.00918.24
7.3.250.0150.00216.41
7.3.240.0070.01016.38
7.3.230.0080.00816.64
7.3.210.0080.00916.46
7.3.200.0090.01319.39
7.3.190.0200.00316.50
7.3.180.0160.00016.51
7.3.170.0130.00316.42
7.3.160.0060.01516.52
7.3.120.0000.01714.93
7.3.110.0070.01114.71
7.3.100.0130.00614.91
7.3.90.0100.00614.64
7.3.80.0030.00915.14
7.3.70.0070.00715.01
7.3.60.0030.01014.92
7.3.50.0030.00714.96
7.3.40.0000.01114.48
7.3.30.0070.00314.63
7.3.20.0090.00616.53
7.3.10.0120.00316.62
7.3.00.0070.00716.62
7.2.330.0060.01216.71
7.2.320.0150.00416.74
7.2.310.0100.01316.61
7.2.300.0090.01016.85
7.2.290.0030.01416.64
7.2.250.0080.01215.38
7.2.240.0030.01915.14
7.2.230.0070.01015.04
7.2.220.0060.01215.14
7.2.210.0060.00915.30
7.2.200.0000.01314.88
7.2.190.0120.00315.16
7.2.180.0040.00415.07
7.2.170.0000.01514.93
7.1.330.0030.01215.96
7.1.320.0000.00916.00
7.1.310.0030.01015.84
7.1.300.0000.00815.80
7.1.290.0080.00415.46
7.1.280.0060.00616.04
7.1.270.0060.00315.99
7.1.260.0060.00615.63
7.1.70.0000.01117.26
7.1.60.0100.01619.17
7.1.50.0060.01616.80
7.1.00.0000.04722.43
7.0.200.0030.00316.92
7.0.140.0000.07022.09
7.0.90.0130.07719.90
7.0.80.0100.07319.89
7.0.70.0000.06019.85
7.0.60.0100.06720.13
7.0.50.0100.08720.26
7.0.40.0070.07020.02
7.0.30.0170.05320.19
7.0.20.0100.08020.10
7.0.10.0000.09020.10
7.0.00.0130.07020.14
5.6.280.0100.06721.04
5.6.230.0100.05720.66
5.6.220.0030.05020.62
5.6.210.0070.05720.46
5.6.200.0170.03721.06
5.6.190.0100.08721.02
5.6.180.0070.05321.01
5.6.170.0100.04720.96
5.6.160.0100.04321.06
5.6.150.0100.08020.96
5.6.140.0130.05721.01
5.6.130.0100.07720.94
5.6.120.0200.07020.98
5.6.110.0030.06021.13
5.6.100.0030.06321.13
5.6.90.0100.06021.02
5.6.80.0100.07720.43
5.6.70.0130.05320.55
5.6.60.0130.07020.32
5.6.50.0130.06720.45
5.6.40.0130.06720.46
5.6.30.0100.06720.40
5.6.20.0070.08320.38
5.6.10.0100.07020.32
5.6.00.0070.05320.36
5.5.370.0100.06720.36
5.5.360.0070.05020.41
5.5.350.0130.06720.34
5.5.340.0130.04020.65
5.5.330.0100.08320.79
5.5.320.0030.06320.84
5.5.310.0070.05020.87
5.5.300.0000.09020.86
5.5.290.0000.08320.88
5.5.280.0070.05020.94
5.5.270.0100.04320.76
5.5.260.0130.07020.76
5.5.250.0070.04020.75
5.5.240.0030.08320.32
5.5.230.0070.08320.27
5.5.220.0170.05320.12
5.5.210.0130.07320.12
5.5.200.0130.07320.14
5.5.190.0030.04720.09
5.5.180.0000.08720.26
5.5.160.0030.04020.20
5.5.150.0130.07020.16
5.5.140.0070.05720.28
5.5.130.0070.08020.24
5.5.120.0170.06020.27
5.5.110.0000.05020.26
5.5.100.0130.07020.18
5.5.90.0170.05720.07
5.5.80.0100.07020.07
5.5.70.0000.07320.10
5.5.60.0130.07019.94
5.5.50.0030.07320.10
5.5.40.0100.05020.15
5.5.30.0000.06320.16
5.5.20.0000.07320.16
5.5.10.0000.06020.14
5.5.00.0030.08020.11
5.4.450.0100.08319.42
5.4.440.0070.07719.54
5.4.430.0000.05719.53
5.4.420.0030.09019.55
5.4.410.0130.05719.40
5.4.400.0070.07718.86
5.4.390.0100.06719.12
5.4.380.0030.08318.90
5.4.370.0100.08018.95
5.4.360.0070.04719.13
5.4.350.0130.05019.23
5.4.340.0000.06719.09
5.4.320.0200.06319.20
5.4.310.0100.07319.04
5.4.300.0070.07719.04
5.4.290.0070.04718.90
5.4.280.0100.07018.85
5.4.270.0030.05019.09
5.4.260.0070.07719.12
5.4.250.0000.07718.94
5.4.240.0100.07319.22
5.4.230.0130.07018.84
5.4.220.0200.06719.09
5.4.210.0030.06719.04
5.4.200.0100.07018.90
5.4.190.0070.06319.04
5.4.180.0100.07019.22
5.4.170.0070.04019.20
5.4.160.0030.04719.10
5.4.150.0070.07718.92
5.4.140.0130.07016.47
5.4.130.0100.04716.50
5.4.120.0070.06316.46
5.4.110.0070.07016.49
5.4.100.0130.07016.39
5.4.90.0030.08016.48
5.4.80.0030.06316.31
5.4.70.0100.05016.43
5.4.60.0000.07016.34
5.4.50.0100.04316.31
5.4.40.0070.05316.36
5.4.30.0070.07316.44
5.4.20.0030.04316.39
5.4.10.0130.03316.41
5.4.00.0100.06715.78
5.3.290.0030.08714.73
5.3.280.0070.04014.60
5.3.270.0070.04714.77
5.3.260.0030.08014.60
5.3.250.0030.04714.66
5.3.240.0070.06014.65
5.3.230.0100.07714.55
5.3.220.0130.07314.66
5.3.210.0030.08714.59
5.3.200.0070.07314.59
5.3.190.0170.07014.73
5.3.180.0100.04714.51
5.3.170.0130.06314.71
5.3.160.0100.05714.52
5.3.150.0030.08014.62
5.3.140.0100.06714.71
5.3.130.0100.04014.62
5.3.120.0000.07714.54
5.3.110.0130.07014.57
5.3.100.0030.04014.48
5.3.90.0030.04014.48
5.3.80.0000.04314.48
5.3.70.0030.04014.48
5.3.60.0100.05314.48
5.3.50.0070.03714.48
5.3.40.0030.06314.48
5.3.30.0030.03314.48
5.3.20.0000.05014.48
5.3.10.0000.03714.48
5.3.00.0070.03014.48
5.2.170.0000.06314.48
5.2.160.0000.05714.48
5.2.150.0030.05314.48
5.2.140.0070.06314.48
5.2.130.0070.05714.48
5.2.120.0100.02714.48
5.2.110.0030.02314.48
5.2.100.0070.02014.48
5.2.90.0030.04714.48
5.2.80.0030.06314.48
5.2.70.0100.03014.48
5.2.60.0030.05714.48
5.2.50.0100.06014.48
5.2.40.0030.03314.48
5.2.30.0030.06314.48
5.2.20.0130.05014.48
5.2.10.0030.05714.48
5.2.00.0030.06014.48
5.1.60.0070.02714.48
5.1.50.0070.05014.48
5.1.40.0070.05314.48
5.1.30.0170.04714.48
5.1.20.0030.05014.48
5.1.10.0070.05314.48
5.1.00.0100.04014.48
5.0.50.0030.04714.48
5.0.40.0000.05014.48
5.0.30.0070.06314.48
5.0.20.0070.04014.48
5.0.10.0000.04714.48
5.0.00.0070.05314.48
4.4.90.0030.02714.48
4.4.80.0030.03014.48
4.4.70.0030.02314.48
4.4.60.0000.02314.48
4.4.50.0000.02314.48
4.4.40.0000.02714.48
4.4.30.0100.02714.48
4.4.20.0030.03314.48
4.4.10.0000.02714.48
4.4.00.0070.05014.48
4.3.110.0030.02314.48
4.3.100.0000.03714.48
4.3.90.0100.02714.48
4.3.80.0070.05014.48
4.3.70.0070.03014.48
4.3.60.0000.04014.48
4.3.50.0030.03714.48
4.3.40.0000.04314.48
4.3.30.0030.03314.48
4.3.20.0000.04014.48
4.3.10.0030.03014.48
4.3.00.0030.03314.48

preferences:
42.29 ms | 401 KiB | 5 Q