3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { 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 === $oC->B->A ? "yes" : "no", "\n"; echo serialize($oC->A) === serialize($oC->B->A) ? 'yes' : 'no', "\n"; $ser = serialize($oC); echo $ser, "\n"; $new_oC = unserialize($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)
8.3.60.0070.00718.42
8.3.50.0090.00622.05
8.3.40.0140.00018.73
8.3.30.0110.00318.71
8.3.20.0080.00018.64
8.3.10.0000.00821.04
8.3.00.0040.00421.90
8.2.180.0140.00716.46
8.2.170.0070.00722.96
8.2.160.0120.00320.52
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00720.90
8.2.110.0030.00720.54
8.2.100.0090.00317.80
8.2.90.0000.00819.05
8.2.80.0070.00317.97
8.2.70.0040.00417.50
8.2.60.0030.00618.04
8.2.50.0080.00318.07
8.2.40.0080.00318.05
8.2.30.0000.00719.46
8.2.20.0050.00317.64
8.2.10.0000.00717.62
8.2.00.0000.00817.71
8.1.280.0080.00825.92
8.1.270.0000.00723.99
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0090.00022.46
8.1.230.0040.01020.81
8.1.220.0000.00818.77
8.1.210.0000.00819.03
8.1.200.0100.00017.13
8.1.190.0040.00417.53
8.1.180.0040.00418.10
8.1.170.0000.00818.53
8.1.160.0040.00418.84
8.1.150.0050.00318.59
8.1.140.0060.00317.39
8.1.130.0000.00717.84
8.1.120.0080.00017.45
8.1.110.0030.00517.36
8.1.100.0000.00717.40
8.1.90.0070.00017.43
8.1.80.0040.00417.38
8.1.70.0050.00317.43
8.1.60.0040.00417.55
8.1.50.0000.00717.32
8.1.40.0000.00817.38
8.1.30.0060.00317.53
8.1.20.0030.00517.50
8.1.10.0000.00717.55
8.1.00.0040.00417.55
8.0.300.0000.00719.98
8.0.290.0000.00816.80
8.0.280.0050.00218.38
8.0.270.0070.00017.28
8.0.260.0030.00318.45
8.0.250.0000.00717.04
8.0.240.0050.00316.98
8.0.230.0030.00317.01
8.0.220.0000.00716.93
8.0.210.0000.00716.80
8.0.200.0000.00616.94
8.0.190.0050.00216.98
8.0.180.0040.00416.93
8.0.170.0090.00016.83
8.0.160.0030.00516.89
8.0.150.0040.00416.84
8.0.140.0000.00716.93
8.0.130.0030.00313.41
8.0.120.0000.00716.91
8.0.110.0050.00216.80
8.0.100.0040.00416.81
8.0.90.0040.00416.76
8.0.80.0100.00716.91
8.0.70.0030.00316.90
8.0.60.0040.00416.89
8.0.50.0040.00416.80
8.0.30.0120.00617.16
8.0.20.0160.00417.40
8.0.10.0030.00517.08
8.0.00.0100.01016.88
7.4.330.0000.00516.72
7.4.320.0060.00016.60
7.4.300.0070.00016.60
7.4.290.0000.00716.55
7.4.280.0070.00016.52
7.4.270.0030.00316.63
7.4.260.0030.00313.32
7.4.250.0040.00416.56
7.4.240.0040.00416.63
7.4.230.0030.00316.72
7.4.220.0060.00916.45
7.4.210.0090.00716.52
7.4.200.0040.00416.72
7.4.190.0070.00016.71
7.4.160.0100.00516.55
7.4.150.0140.00417.40
7.4.140.0090.00817.86
7.4.130.0100.01016.59
7.4.120.0030.01516.57
7.4.110.0090.00916.58
7.4.100.0080.01516.60
7.4.90.0090.01516.57
7.4.80.0030.01419.39
7.4.70.0040.01116.34
7.4.60.0100.01016.70
7.4.50.0060.00316.53
7.4.40.0000.01522.77
7.4.30.0090.00916.57
7.4.00.0040.01114.82
7.3.330.0030.00313.31
7.3.320.0050.00013.29
7.3.310.0030.00316.25
7.3.300.0030.00316.21
7.3.290.0070.01016.31
7.3.280.0080.00716.32
7.3.270.0140.00317.40
7.3.260.0140.00618.24
7.3.250.0090.00916.47
7.3.240.0030.01416.68
7.3.230.0060.01016.70
7.3.210.0070.01016.47
7.3.200.0110.01119.39
7.3.190.0120.00916.68
7.3.180.0060.01016.71
7.3.170.0120.00616.60
7.3.160.0080.00816.57
7.3.120.0080.00614.80
7.2.330.0040.01516.77
7.2.320.0120.00616.75
7.2.310.0190.00716.66
7.2.300.0100.00716.61
7.2.290.0060.01216.76
7.2.60.0110.00416.94
7.2.00.0030.01219.57
7.1.200.0060.00915.61
7.1.100.0070.01117.52
7.1.70.0030.00717.13
7.1.60.0070.01019.17
7.1.50.0130.01016.64
7.1.00.0000.03722.51
7.0.200.0170.00714.96
7.0.140.0030.05021.97
7.0.70.0000.04021.72
7.0.60.0030.04021.76
7.0.50.0030.04022.14
7.0.40.0070.08020.05
7.0.30.0000.05720.15
7.0.20.0000.05020.05
7.0.10.0070.08720.10
7.0.00.0100.08320.04
5.6.280.0030.07321.05
5.6.220.0030.06020.59
5.6.210.0030.03720.48
5.6.200.0070.03720.98
5.6.190.0000.04021.04
5.6.180.0070.08020.96
5.6.170.0000.03721.00
5.6.160.0130.08021.13
5.6.150.0030.07721.03
5.6.140.0070.07720.96
5.6.130.0200.07021.09
5.6.120.0030.07021.13
5.6.110.0000.09021.14
5.6.100.0070.07721.04
5.6.90.0030.07021.04
5.6.80.0070.08020.51
5.6.70.0000.08320.35
5.6.60.0000.07320.34
5.6.50.0030.06020.41
5.6.40.0030.05720.39
5.6.30.0100.07320.48
5.6.20.0100.06720.45
5.6.10.0170.05320.50
5.6.00.0070.08020.29
5.5.360.0000.03720.57
5.5.350.0030.04020.37
5.5.340.0000.04020.82
5.5.330.0000.04720.86
5.5.320.0000.08020.66
5.5.310.0100.06720.78
5.5.300.0000.06020.78
5.5.290.0070.04020.85
5.5.280.0030.07020.85
5.5.270.0130.08020.92
5.5.260.0070.08320.80
5.5.250.0030.09020.71
5.5.240.0100.06720.23
5.5.230.0070.08020.13
5.5.220.0100.07320.25
5.5.210.0070.06020.26
5.5.200.0070.06320.20
5.5.190.0070.07720.23
5.5.180.0070.08020.24
5.5.160.0030.08720.10
5.5.150.0000.08320.24
5.5.140.0070.04020.14
5.5.130.0000.08320.12
5.5.120.0070.08020.29
5.5.110.0030.07020.22
5.5.100.0000.08320.09
5.5.90.0100.07720.11
5.5.80.0030.08020.09
5.5.70.0030.08020.14
5.5.60.0030.08020.18
5.5.50.0070.07720.07
5.5.40.0070.08019.98
5.5.30.0030.08320.16
5.5.20.0070.08320.07
5.5.10.0000.08319.98
5.5.00.0070.07719.98
5.4.450.0070.07319.48
5.4.440.0000.06019.46
5.4.430.0070.08319.53
5.4.420.0070.08019.37
5.4.410.0070.05319.09
5.4.400.0030.05719.03
5.4.390.0070.08019.25
5.4.380.0000.07719.05
5.4.370.0100.07019.23
5.4.360.0070.08019.14
5.4.350.0070.07319.04
5.4.340.0030.08018.87
5.4.320.0070.07319.09
5.4.310.0030.08019.14
5.4.300.0000.06019.02
5.4.290.0030.07319.04
5.4.280.0030.08019.02
5.4.270.0000.05719.18
5.4.260.0030.07719.09
5.4.250.0030.08019.18
5.4.240.0000.07319.02
5.4.230.0030.07719.18
5.4.220.0070.08019.11
5.4.210.0030.07319.04
5.4.200.0100.08019.15
5.4.190.0030.07319.10
5.4.180.0030.05719.14
5.4.170.0070.07719.14
5.4.160.0030.08019.02
5.4.150.0100.07019.05
5.4.140.0030.05316.49
5.4.130.0100.07016.39
5.4.120.0030.07716.24
5.4.110.0030.08016.52
5.4.100.0070.07316.52
5.4.90.0030.07716.49
5.4.80.0030.06716.55
5.4.70.0000.07316.50
5.4.60.0000.06716.33
5.4.50.0000.07716.25
5.4.40.0030.07716.45
5.4.30.0030.06316.49
5.4.20.0030.07316.29
5.4.10.0030.07016.47
5.4.00.0070.07315.86
5.3.290.0030.08314.70
5.3.280.0130.06714.59
5.3.270.0000.08314.64
5.3.260.0130.07014.63
5.3.250.0100.07014.55
5.3.240.0100.07314.58
5.3.230.0000.06014.55
5.3.220.0030.07314.70
5.3.210.0000.07714.52
5.3.200.0030.07714.72
5.3.190.0100.08014.57
5.3.180.0000.07314.50
5.3.170.0070.06014.56
5.3.160.0030.05314.54
5.3.150.0000.08314.70
5.3.140.0030.08014.54
5.3.130.0070.07714.49
5.3.120.0030.08014.70
5.3.110.0070.07714.55
5.3.100.0000.08014.11
5.3.90.0070.08014.18
5.3.80.0100.07014.01
5.3.70.0000.08014.14
5.3.60.0030.07014.08
5.3.50.0100.06713.90
5.3.40.0100.07014.06
5.3.30.0100.07313.98
5.3.20.0030.05713.85
5.3.10.0100.04713.66
5.3.00.0070.07313.77
5.2.170.0100.05312.32
5.2.160.0070.05712.32
5.2.150.0030.06312.32
5.2.140.0000.06712.32
5.2.130.0000.06312.32
5.2.120.0030.04312.32
5.2.110.0000.06712.32
5.2.100.0030.06312.32
5.2.90.0030.06012.32
5.2.80.0070.06312.32
5.2.70.0000.05712.32
5.2.60.0030.05012.32
5.2.50.0000.06012.32
5.2.40.0030.05012.32
5.2.30.0030.06012.32
5.2.20.0000.06712.32
5.2.10.0030.06312.32
5.2.00.0070.05312.32
5.1.60.0030.05012.32
5.1.50.0030.05712.32
5.1.40.0100.04712.32
5.1.30.0030.05712.32
5.1.20.0030.05712.32
5.1.10.0030.04712.32
5.1.00.0000.06012.32
5.0.50.0000.04012.32
5.0.40.0000.04712.32
5.0.30.0030.04712.32
5.0.20.0000.04012.32
5.0.10.0070.04312.32
5.0.00.0000.05012.32
4.4.90.0030.03712.32
4.4.80.0030.03712.32
4.4.70.0000.04012.32
4.4.60.0000.03312.32
4.4.50.0030.03012.32
4.4.40.0030.05312.32
4.4.30.0030.03312.32
4.4.20.0000.03712.32
4.4.10.0000.03312.32
4.4.00.0000.05712.32
4.3.110.0000.03012.32
4.3.100.0000.03712.32
4.3.90.0000.03712.32
4.3.80.0000.03012.32
4.3.70.0100.02712.32
4.3.60.0070.02012.32
4.3.50.0070.03312.32
4.3.40.0000.05712.32
4.3.30.0000.03712.32
4.3.20.0000.03712.32
4.3.10.0000.03712.32
4.3.00.0000.03712.32

preferences:
47.53 ms | 401 KiB | 5 Q