3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Everything you enter here will be executed by our servers. Try it! class A { public $b; public function A(B $b = null){ $this->b = $b; } } class B { public $a; public function B(A $a = null) { $this->a = $a; } } var_dump(new A(new B(new A())));

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)
8.3.70.0150.00316.25
8.3.60.0090.01216.50
8.3.50.0100.01017.29
8.3.40.0150.00018.54
8.3.30.0080.00818.63
8.3.20.0040.00418.60
8.3.10.0000.00820.36
8.3.00.0060.00319.25
8.2.180.0070.01418.41
8.2.170.0070.01422.96
8.2.160.0070.00721.07
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0000.00820.58
8.2.110.0090.00021.05
8.2.100.0000.01117.78
8.2.90.0060.00619.36
8.2.80.0000.00719.38
8.2.70.0000.00817.25
8.2.60.0000.00717.68
8.2.50.0040.00418.07
8.2.40.0040.00417.97
8.2.30.0050.00317.99
8.2.20.0070.00017.59
8.2.10.0040.00417.51
8.2.00.0030.00517.51
8.1.280.0100.00725.92
8.1.270.0000.00724.66
8.1.260.0110.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.98
8.1.230.0040.00720.89
8.1.220.0040.00417.74
8.1.210.0030.00618.79
8.1.200.0030.00617.13
8.1.190.0060.00317.38
8.1.180.0000.00818.10
8.1.170.0040.00418.77
8.1.160.0040.00418.68
8.1.150.0040.00418.46
8.1.140.0000.00717.23
8.1.130.0070.00017.81
8.1.120.0070.00017.31
8.1.110.0000.00717.29
8.1.100.0040.00417.38
8.1.90.0000.00717.32
8.1.80.0000.00817.23
8.1.70.0000.00717.29
8.1.60.0000.00817.51
8.1.50.0060.00317.21
8.1.40.0040.00417.30
8.1.30.0030.00617.56
8.1.20.0060.00317.56
8.1.10.0000.00717.38
8.1.00.0000.00717.38
8.0.300.0030.00519.93
8.0.290.0000.00816.63
8.0.280.0050.00318.30
8.0.270.0040.00417.25
8.0.260.0030.00316.75
8.0.250.0050.00316.84
8.0.240.0080.00016.77
8.0.230.0030.00316.74
8.0.220.0030.00516.77
8.0.210.0040.00416.74
8.0.200.0000.01016.85
8.0.190.0040.00416.90
8.0.180.0030.00316.71
8.0.170.0060.00316.71
8.0.160.0050.00216.68
8.0.150.0050.00316.67
8.0.140.0070.00016.64
8.0.130.0030.00613.18
8.0.120.0030.00516.70
8.0.110.0050.00216.78
8.0.100.0070.00016.75
8.0.90.0000.00716.84
8.0.80.0060.00916.72
8.0.70.0070.00016.80
8.0.60.0030.00616.58
8.0.50.0030.00516.85
8.0.30.0120.00716.91
8.0.20.0120.00617.09
8.0.10.0030.00516.77
8.0.00.0120.00716.66
7.4.330.0000.00612.85
7.4.320.0000.00816.52
7.4.300.0000.00616.42
7.4.290.0000.00716.54
7.4.280.0000.00716.50
7.4.270.0000.00816.30
7.4.260.0020.00313.22
7.4.250.0050.00216.57
7.4.240.0040.00416.55
7.4.230.0030.00316.64
7.4.220.0100.00916.50
7.4.210.0070.00716.51
7.4.200.0000.00716.52
7.4.190.0080.00016.64
7.4.160.0080.00816.49
7.4.150.0070.01116.63
7.4.140.0060.01116.47
7.4.130.0080.01016.48
7.4.120.0090.00716.45
7.4.110.0110.00716.30
7.4.100.0060.01216.52
7.4.90.0080.00916.61
7.4.80.0160.00019.39
7.4.70.0080.01116.59
7.4.60.0120.00316.41
7.4.50.0060.00616.29
7.4.40.0000.01516.53
7.4.30.0110.00716.48
7.4.00.0030.01415.11
7.3.330.0030.00313.25
7.3.320.0000.00713.29
7.3.310.0030.00316.25
7.3.300.0060.00016.24
7.3.290.0100.00616.30
7.3.280.0110.00816.28
7.3.270.0100.01316.54
7.3.260.0030.01516.38
7.3.250.0090.00816.23
7.3.240.0120.00616.41
7.3.230.0140.00716.21
7.3.210.0070.01016.37
7.3.200.0090.00916.36
7.3.190.0070.01316.20
7.3.180.0040.01316.48
7.3.170.0050.01616.50
7.3.160.0080.00816.31
7.3.120.0090.00614.48
7.3.110.0030.01014.73
7.3.100.0000.01014.84
7.3.90.0070.01014.83
7.3.80.0080.00814.48
7.3.70.0040.01114.81
7.3.60.0060.00614.75
7.3.50.0130.00314.70
7.3.40.0100.00614.76
7.3.30.0040.01214.48
7.3.20.0100.00616.50
7.3.10.0000.01816.36
7.3.00.0030.01416.71
7.2.330.0040.02016.73
7.2.320.0100.00616.64
7.2.310.0190.00516.38
7.2.300.0060.01216.59
7.2.290.0120.00616.60
7.2.240.0060.00914.92
7.2.230.0030.01015.11
7.2.220.0080.00814.94
7.2.210.0060.00614.91
7.2.200.0060.01014.98
7.2.190.0030.01315.10
7.2.180.0000.01615.05
7.2.170.0060.00614.91
7.2.160.0030.01014.83
7.2.150.0060.01216.82
7.2.140.0070.01016.86
7.2.130.0120.00316.91
7.2.120.0060.01016.73
7.2.110.0070.00716.87
7.2.100.0000.01416.93
7.2.90.0080.00816.95
7.2.80.0070.01116.98
7.2.70.0070.00716.80
7.2.60.0060.00916.88
7.2.50.0030.00916.73
7.2.40.0000.01516.46
7.2.30.0030.01316.69
7.2.20.0060.00616.82
7.2.10.0040.01416.71
7.2.00.0120.00316.94
7.1.330.0030.01015.71
7.1.320.0030.01515.61
7.1.310.0070.00915.68
7.1.300.0000.01615.38
7.1.290.0030.01315.63
7.1.280.0080.00615.97
7.1.270.0080.00815.86
7.1.260.0040.00715.75
7.1.250.0070.00715.84
7.1.200.0080.00415.77
7.1.70.0030.00716.89
7.1.60.0110.01519.40
7.1.50.0100.00716.79
7.1.00.0000.07322.30
7.0.200.0150.00715.04
7.0.140.0000.07722.15
7.0.120.0070.06722.18
7.0.110.0070.08319.86
7.0.100.0000.05719.96
7.0.90.0070.07719.89
7.0.80.0070.07319.92
7.0.70.0070.08719.89
7.0.60.0030.08320.02
7.0.50.0100.05319.89
7.0.40.0000.05319.60
7.0.30.0100.04019.68
7.0.20.0030.04019.66
7.0.10.0030.04719.70
7.0.00.0030.04019.65
5.6.280.0000.07721.15
5.6.260.0100.08320.66
5.6.250.0030.08020.64
5.6.240.0000.09020.57
5.6.230.0070.07720.66
5.6.220.0100.08020.57
5.6.210.0070.05320.65
5.6.200.0130.06320.48
5.6.190.0100.04320.61
5.6.180.0100.03320.68
5.6.170.0030.04720.52
5.6.160.0000.04320.57
5.6.150.0130.03020.62
5.6.140.0070.04320.57
5.6.130.0000.05020.56
5.6.120.0100.06720.61
5.6.110.0000.08720.80
5.6.100.0000.04020.65
5.6.90.0030.04020.55
5.6.80.0030.04019.89
5.6.70.0100.04019.84
5.6.60.0000.04319.94
5.6.50.0000.04320.00
5.6.40.0030.04019.88
5.6.30.0100.03720.16
5.6.20.0000.04319.87
5.6.10.0030.04019.87
5.6.00.0030.03319.87
5.5.380.0070.06020.49
5.5.370.0030.08320.33
5.5.360.0030.09020.52
5.5.350.0130.07720.40
5.5.340.0030.08720.97
5.5.330.0130.03720.80
5.5.320.0070.04720.97
5.5.310.0030.04020.73
5.5.300.0000.04320.76
5.5.290.0030.07720.71
5.5.280.0100.07720.73
5.5.270.0100.03720.91
5.5.260.0070.06320.83
5.5.250.0030.06320.80
5.5.240.0100.06020.32
5.5.230.0030.04020.03
5.5.220.0070.06020.31
5.5.210.0170.06720.28
5.5.200.0030.04720.05
5.5.190.0000.08020.20
5.5.180.0030.04720.11
5.5.160.0100.03720.27
5.5.150.0000.04320.11
5.5.140.0030.07020.28
5.5.130.0000.07320.06
5.5.120.0100.03320.13
5.5.110.0000.04320.28
5.5.100.0070.03320.21
5.5.90.0030.03719.95
5.5.80.0100.03320.12
5.5.70.0000.04019.95
5.5.60.0030.04019.98
5.5.50.0000.04020.21
5.5.40.0070.03320.04
5.5.30.0030.08720.04
5.5.20.0100.07720.18
5.5.10.0070.08019.90
5.5.00.0100.07720.17
5.4.450.0030.04319.50
5.4.440.0000.04019.27
5.4.430.0070.03319.32
5.4.420.0130.05319.35
5.4.410.0000.04719.54
5.4.400.0030.07319.19
5.4.390.0030.04319.14
5.4.380.0030.05719.14
5.4.370.0130.07319.18
5.4.360.0030.07719.33
5.4.350.0000.06019.02
5.4.340.0030.03719.03
5.4.320.0000.03719.02
5.4.310.0000.04019.14
5.4.300.0100.03019.00
5.4.290.0070.07019.14
5.4.280.0030.05319.24
5.4.270.0000.04019.21
5.4.260.0000.03719.16
5.4.250.0000.04019.32
5.4.240.0000.04019.02
5.4.230.0030.04719.09
5.4.220.0000.04018.99
5.4.210.0000.04319.18
5.4.200.0070.03319.17
5.4.190.0030.06319.15
5.4.180.0100.05718.97
5.4.170.0100.05019.23
5.4.160.0070.08019.00
5.4.150.0100.07018.93
5.4.140.0130.07316.67
5.4.130.0100.03316.60
5.4.120.0030.04316.52
5.4.110.0100.07016.46
5.4.100.0070.07316.64
5.4.90.0200.07016.31
5.4.80.0000.06016.60
5.4.70.0100.07016.46
5.4.60.0030.04316.52
5.4.50.0030.07316.56
5.4.40.0070.07716.58
5.4.30.0070.07316.39
5.4.20.0070.07316.39
5.4.10.0070.07716.51
5.4.00.0100.07015.80
5.3.290.0030.03714.82
5.3.280.0030.04714.70
5.3.270.0130.07014.70
5.3.260.0000.08014.70
5.3.250.0130.06714.70
5.3.240.0030.07014.70
5.3.230.0070.06714.70
5.3.220.0130.07014.70
5.3.210.0070.08014.70
5.3.200.0070.07314.70
5.3.190.0100.07314.80
5.3.180.0170.06314.70
5.3.170.0100.07014.70
5.3.160.0100.07714.70
5.3.150.0100.07314.70
5.3.140.0170.05014.70
5.3.130.0070.06314.70
5.3.120.0130.07314.70
5.3.110.0100.06714.70
5.3.100.0030.07714.70
5.3.90.0130.06314.70
5.3.80.0130.04314.70
5.3.70.0100.07014.70
5.3.60.0100.06014.70
5.3.50.0030.08014.70
5.3.40.0130.06714.70
5.3.30.0100.07314.70
5.3.20.0030.07014.70
5.3.10.0170.06314.70
5.3.00.0170.06314.70
5.2.170.0100.05314.70
5.2.160.0070.04714.70
5.2.150.0100.03714.70
5.2.140.0070.06314.70
5.2.130.0100.05714.70
5.2.120.0000.06714.70
5.2.110.0030.06314.70
5.2.100.0070.06014.70
5.2.90.0030.06314.70
5.2.80.0030.06014.70
5.2.70.0030.06314.70
5.2.60.0070.06014.70
5.2.50.0000.06314.70
5.2.40.0000.05714.70
5.2.30.0000.07014.70
5.2.20.0000.06714.70
5.2.10.0070.04714.70
5.2.00.0070.05314.70
5.1.60.0130.04314.70
5.1.50.0070.05014.70
5.1.40.0100.04714.70
5.1.30.0000.05314.70
5.1.20.0030.05714.70
5.1.10.0030.05014.70
5.1.00.0100.05314.70
5.0.50.0100.02314.70
5.0.40.0030.04714.70
5.0.30.0030.06014.70
5.0.20.0030.04314.70
5.0.10.0030.04314.70
5.0.00.0070.06314.70
4.4.90.0000.03714.70
4.4.80.0030.03014.70
4.4.70.0030.03714.70
4.4.60.0000.02714.70
4.4.50.0000.03714.70
4.4.40.0030.05014.70
4.4.30.0000.04014.70
4.4.20.0000.03714.70
4.4.10.0000.03014.70
4.4.00.0030.05014.70
4.3.110.0070.03014.70
4.3.100.0000.03314.70
4.3.90.0070.03014.70
4.3.80.0030.05314.70
4.3.70.0000.03714.70
4.3.60.0070.03014.70
4.3.50.0030.03314.70
4.3.40.0000.05314.70
4.3.30.0030.03314.70
4.3.20.0030.03314.70
4.3.10.0000.04014.70
4.3.00.0030.03014.70

preferences:
35.07 ms | 401 KiB | 5 Q