3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B { var $dd = NULL; } class A { function b() { static $c = null; if (!is_object($c)) $c = new B(); $c->dd++; return $c->dd; } } var_dump(A::b()); var_dump(A::b());

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)
8.3.60.0070.00716.75
8.3.50.0180.00617.23
8.3.40.0110.00418.84
8.3.30.0030.01418.83
8.3.20.0080.00018.70
8.3.10.0030.00620.48
8.3.00.0030.00619.50
8.2.180.0120.00618.29
8.2.170.0090.00622.96
8.2.160.0100.01019.32
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0050.00520.38
8.2.110.0050.00522.25
8.2.100.0040.00717.78
8.2.90.0030.00621.04
8.2.80.0040.00419.21
8.2.70.0040.00417.50
8.2.60.0000.00817.80
8.2.50.0050.00318.07
8.2.40.0050.00318.03
8.2.30.0060.00318.04
8.2.20.0050.00519.32
8.2.10.0000.00817.62
8.2.00.0040.00417.59
8.1.280.0110.00425.92
8.1.270.0000.00724.66
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00422.52
8.1.230.0130.00017.42
8.1.220.0040.00417.74
8.1.210.0040.00418.91
8.1.200.0050.00517.25
8.1.190.0090.00017.40
8.1.180.0050.00318.10
8.1.170.0060.00318.90
8.1.160.0040.00418.76
8.1.150.0000.00718.56
8.1.140.0040.00417.28
8.1.130.0070.00017.75
8.1.120.0000.01017.34
8.1.110.0000.00817.22
8.1.100.0030.00417.31
8.1.90.0050.00217.30
8.1.80.0040.00417.18
8.1.70.0070.00017.24
8.1.60.0040.00717.57
8.1.50.0050.00317.37
8.1.40.0040.00417.34
8.1.30.0000.00817.59
8.1.20.0070.00017.43
8.1.10.0040.00417.45
8.1.00.0050.00317.31
8.0.300.0040.00419.90
8.0.290.0080.00016.63
8.0.280.0000.00718.34
8.0.270.0000.00717.08
8.0.260.0030.00316.81
8.0.250.0070.00016.99
8.0.240.0050.00516.86
8.0.230.0000.00716.93
8.0.220.0000.00716.89
8.0.210.0040.00416.89
8.0.200.0030.00316.98
8.0.190.0000.00716.93
8.0.180.0050.00316.95
8.0.170.0040.00416.75
8.0.160.0030.00516.94
8.0.150.0050.00216.82
8.0.140.0090.00416.85
8.0.130.0050.00013.36
8.0.120.0000.00716.88
8.0.110.0070.00016.84
8.0.100.0000.00916.91
8.0.90.0040.00416.72
8.0.80.0090.00616.88
8.0.70.0050.00316.67
8.0.60.0050.00316.84
8.0.50.0030.00616.73
8.0.30.0070.01317.20
8.0.20.0070.01217.11
8.0.10.0080.00016.75
8.0.00.0090.01116.85
7.4.330.0020.00212.89
7.4.320.0000.00616.45
7.4.300.0030.00316.48
7.4.290.0000.00716.57
7.4.280.0000.00816.59
7.4.270.0070.00016.44
7.4.260.0030.00313.28
7.4.250.0050.00216.40
7.4.240.0030.00316.50
7.4.230.0030.00316.34
7.4.220.0160.00316.58
7.4.210.0110.00316.54
7.4.200.0000.00716.54
7.4.190.0040.00416.46
7.4.160.0040.01116.68
7.4.150.0060.01716.50
7.4.140.0100.00716.38
7.4.130.0100.00716.35
7.4.120.0070.01616.39
7.4.110.0140.00316.63
7.4.100.0030.01416.36
7.4.90.0140.00816.54
7.4.80.0080.00819.39
7.4.70.0120.00616.35
7.4.60.0090.00616.33
7.4.50.0040.00416.47
7.4.40.0090.00216.26
7.4.30.0140.00716.37
7.4.00.0110.00714.95
7.3.330.0030.00313.29
7.3.320.0050.00013.09
7.3.310.0070.00016.32
7.3.300.0000.00716.15
7.3.290.0070.00716.26
7.3.280.0130.00516.25
7.3.270.0060.01416.48
7.3.260.0030.01316.24
7.3.250.0130.00916.49
7.3.240.0070.01016.33
7.3.230.0130.00316.45
7.3.210.0000.01716.45
7.3.200.0090.00916.45
7.3.190.0130.00316.37
7.3.180.0090.00616.22
7.3.170.0150.00316.28
7.3.160.0060.00916.26
7.3.120.0060.00914.78
7.2.330.0080.00816.38
7.2.320.0090.00916.59
7.2.310.0070.01116.53
7.2.300.0110.00716.49
7.2.290.0080.00816.40
7.2.60.0060.00917.09
7.2.50.0060.01017.05
7.2.00.0030.01219.23
7.1.200.0000.01115.92
7.1.70.0030.00617.20
7.1.60.0070.00717.17
7.1.50.0030.01416.95
7.1.00.0000.06722.45
7.0.200.0040.01216.52
7.0.140.0000.07321.95
7.0.120.0070.03022.16
7.0.60.0030.08321.70
7.0.50.0130.06017.96
7.0.40.0070.04020.05
7.0.30.0270.04020.08
7.0.20.0270.06720.34
7.0.10.0070.05320.07
7.0.00.0030.04320.32
5.6.280.0070.06721.09
5.6.210.0070.07720.66
5.6.200.0200.06318.20
5.6.190.0070.08320.55
5.6.180.0170.05020.68
5.6.170.0300.06320.51
5.6.160.0030.04020.57
5.6.150.0030.04318.16
5.6.140.0070.03718.11
5.6.130.0200.03718.12
5.6.120.0030.04020.99
5.6.110.0130.07321.00
5.6.100.0000.04720.98
5.6.90.0000.08021.11
5.6.80.0030.08020.38
5.5.350.0130.07720.44
5.5.340.0000.05717.96
5.5.330.0030.04020.44
5.5.320.0570.07020.30
5.5.310.0130.04720.36
5.5.300.0070.03718.08
5.5.290.0030.04017.92
5.5.280.0030.09020.66
5.5.270.0100.08320.79
5.5.260.0030.09020.76
5.5.250.0100.07320.71
5.5.240.0100.05020.36
5.4.450.0130.07019.57
5.4.440.0130.05719.18
5.4.430.0100.04019.56
5.4.420.0130.06719.48
5.4.410.0130.07319.16
5.4.400.0170.04319.25
5.4.390.0100.04718.86
5.4.380.0230.06019.15
5.4.370.0100.07719.14
5.4.360.0100.07019.14
5.4.350.0070.04318.98
5.4.340.0070.07719.00
5.4.320.0100.07718.95
5.4.310.0070.07719.14
5.4.300.0130.05319.14
5.4.290.0030.04019.16
5.4.280.0070.07019.24
5.4.270.0100.07018.98
5.4.260.0070.07718.84
5.4.250.0030.04019.14
5.4.240.0100.04018.96
5.4.230.0100.04018.91
5.4.220.0100.04319.20
5.4.210.0030.07019.14
5.4.200.0170.07318.96
5.4.190.0030.03719.13
5.4.180.0070.06719.23
5.4.170.0100.04019.23
5.4.160.0100.06319.22
5.4.150.0100.07319.24
5.4.140.0070.07316.38
5.4.130.0000.05316.31
5.4.120.0000.04316.48
5.4.110.0000.03716.54
5.4.100.0100.03016.52
5.4.90.0070.03016.35
5.4.80.0030.03716.29
5.4.70.0030.03716.34
5.4.60.0070.03016.27
5.4.50.0000.03716.46
5.4.40.0070.03016.40
5.4.30.0030.03316.36
5.4.20.0000.03716.36
5.4.10.0070.05016.35
5.4.00.0000.03715.74
5.3.290.0100.07314.70
5.3.280.0030.07714.62
5.3.270.0030.08014.75
5.3.260.0100.05714.68
5.3.250.0030.04014.61
5.3.240.0130.06714.79
5.3.230.0000.04314.48
5.3.220.0070.04014.71
5.3.210.0030.04014.66
5.3.200.0070.03314.48
5.3.190.0070.03314.60
5.3.180.0000.03714.57
5.3.170.0070.04014.64
5.3.160.0030.03714.57
5.3.150.0070.03714.57
5.3.140.0070.03314.56
5.3.130.0030.03714.55
5.3.120.0000.04014.54
5.3.110.0030.03714.70
5.3.100.0100.02714.05
5.3.90.0000.03714.01
5.3.80.0070.03314.07
5.3.70.0000.03714.05
5.3.60.0070.03314.00
5.3.50.0030.03313.99
5.3.40.0000.04014.09
5.3.30.0030.03313.91
5.3.20.0030.03713.70
5.3.10.0000.03713.66
5.3.00.0030.03313.61
5.2.170.0000.03011.14
5.2.160.0030.02711.16
5.2.150.0000.03311.09
5.2.140.0030.02711.14
5.2.130.0000.03011.07
5.2.120.0000.03011.11
5.2.110.0000.03011.11
5.2.100.0070.02311.10
5.2.90.0070.02311.00
5.2.80.0030.02711.09
5.2.70.0030.02711.11
5.2.60.0030.03011.07
5.2.50.0000.03011.02
5.2.40.0070.02310.93
5.2.30.0030.02710.97
5.2.20.0000.03010.92
5.2.10.0000.03011.02
5.2.00.0000.03010.73
5.1.60.0070.02010.15
5.1.50.0030.0239.96
5.1.40.0000.02310.04
5.1.30.0030.03710.25
5.1.20.0030.05710.38
5.1.10.0030.04310.23
5.1.00.0030.04010.04
5.0.50.0170.0238.55
5.0.40.0030.0408.38
5.0.30.0030.0438.38
5.0.20.0070.0238.26
5.0.10.0070.0138.26
5.0.00.0000.0408.26
4.4.90.0000.0178.26
4.4.80.0000.0178.26
4.4.70.0000.0178.26
4.4.60.0030.0138.26
4.4.50.0000.0178.26
4.4.40.0000.0238.26
4.4.30.0000.0178.26
4.4.20.0000.0378.26
4.4.10.0030.0308.26
4.4.00.0030.0508.26
4.3.110.0000.0278.26
4.3.100.0000.0308.26
4.3.90.0000.0208.26
4.3.80.0030.0278.26
4.3.70.0030.0178.26
4.3.60.0070.0208.26
4.3.50.0070.0338.26
4.3.40.0000.0378.26
4.3.30.0070.0338.26
4.3.20.0070.0308.26
4.3.10.0000.0338.26
4.3.00.0000.0338.26

preferences:
82.03 ms | 401 KiB | 5 Q