3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { final public static function getclass() { var_dump(__CLASS__); } } class b extends a {} class c extends b {} class d extends c {} class e {} var_dump(is_subclass_of('e', 'a')); var_dump(get_declared_classes());

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)
8.3.60.0130.00616.50
8.3.50.0130.01021.97
8.3.40.0170.00718.68
8.3.30.0070.01018.42
8.3.20.0080.00020.16
8.3.10.0090.00023.36
8.3.00.0060.00319.26
8.2.180.0100.01018.16
8.2.170.0100.00622.96
8.2.160.0090.00622.08
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0090.00017.38
8.2.120.0060.00326.35
8.2.110.0110.00020.83
8.2.100.0100.00317.79
8.2.90.0050.00319.09
8.2.80.0040.00417.97
8.2.70.0070.00417.50
8.2.60.0000.01017.67
8.2.50.0040.00418.07
8.2.40.0030.00719.34
8.2.30.0040.00420.46
8.2.20.0040.00717.56
8.2.10.0030.00617.91
8.2.00.0040.00417.82
8.1.280.0110.00725.92
8.1.270.0030.00922.14
8.1.260.0030.00628.09
8.1.250.0060.00328.09
8.1.240.0060.00321.01
8.1.230.0000.01217.42
8.1.220.0040.00417.74
8.1.210.0070.00418.77
8.1.200.0030.00617.10
8.1.190.0030.00516.98
8.1.180.0000.00818.10
8.1.170.0060.00318.58
8.1.160.0000.00821.94
8.1.150.0040.00418.63
8.1.140.0030.00619.35
8.1.130.0000.00917.57
8.1.120.0050.00317.30
8.1.110.0040.00417.24
8.1.100.0080.00017.23
8.1.90.0000.00917.29
8.1.80.0030.00517.20
8.1.70.0060.00317.27
8.1.60.0000.00917.36
8.1.50.0030.00617.38
8.1.40.0000.00917.39
8.1.30.0060.00317.43
8.1.20.0040.00417.35
8.1.10.0050.00517.27
8.1.00.0000.00817.26
8.0.300.0000.00818.77
8.0.290.0000.00816.59
8.0.280.0080.00018.32
8.0.270.0020.00517.06
8.0.260.0030.00317.17
8.0.250.0040.00416.71
8.0.240.0040.00416.83
8.0.230.0030.00516.82
8.0.220.0000.00716.67
8.0.210.0070.00016.82
8.0.200.0040.00416.64
8.0.190.0060.00316.70
8.0.180.0000.00816.81
8.0.170.0030.00616.77
8.0.160.0060.00316.78
8.0.150.0040.00416.71
8.0.140.0000.01116.68
8.0.130.0030.00313.23
8.0.120.0040.00416.73
8.0.110.0050.00316.70
8.0.100.0000.00816.79
8.0.90.0040.00416.86
8.0.80.0100.00716.69
8.0.70.0000.00816.82
8.0.60.0000.00816.57
8.0.50.0050.00216.70
8.0.30.0140.00816.95
8.0.20.0180.00717.40
8.0.10.0040.00416.75
8.0.00.0150.00716.66
7.4.330.0030.00316.74
7.4.320.0040.00416.39
7.4.300.0060.00016.37
7.4.290.0060.00316.25
7.4.280.0070.00316.46
7.4.270.0040.00416.31
7.4.260.0030.00716.34
7.4.250.0000.00816.32
7.4.240.0040.00416.47
7.4.230.0070.00016.16
7.4.220.0070.02116.56
7.4.210.0090.01316.49
7.4.200.0020.00516.44
7.4.160.0120.00816.22
7.4.150.0130.00917.40
7.4.140.0130.01217.86
7.4.130.0100.01216.39
7.4.120.0080.01116.43
7.4.110.0130.00816.36
7.4.100.0130.01016.29
7.4.90.0140.00616.38
7.4.80.0030.01619.39
7.4.70.0170.00716.37
7.4.60.0090.00916.35
7.4.50.0000.01816.22
7.4.40.0090.01216.37
7.4.30.0080.01916.47
7.4.00.0150.00414.86
7.3.330.0000.00513.18
7.3.320.0000.00613.11
7.3.310.0040.00416.15
7.3.300.0000.00716.16
7.3.290.0080.01016.14
7.3.280.0100.00816.17
7.3.270.0150.00717.40
7.3.260.0180.00316.44
7.3.250.0140.00616.13
7.3.240.0150.00916.11
7.3.230.0170.00316.45
7.3.210.0130.01316.23
7.3.200.0130.01316.53
7.3.190.0070.01816.15
7.3.180.0070.01416.15
7.3.170.0130.00916.27
7.3.160.0140.00716.18
7.2.330.0130.01016.18
7.2.320.0080.02116.25
7.2.310.0110.00716.21
7.2.300.0100.01016.34
7.2.290.0100.01316.52
7.2.60.0030.01416.66
7.2.00.0030.01419.14
7.1.200.0030.01015.33
7.1.100.0040.00818.07
7.1.70.0040.00416.65
7.1.60.0070.02019.48
7.1.50.0030.02216.88
7.1.00.0100.07022.57
7.0.200.1440.00714.30
7.0.60.0000.04319.98
7.0.50.0030.08317.89
7.0.40.0130.07720.14
7.0.30.0000.08720.06
7.0.20.0330.07720.11
7.0.10.0070.06020.10
7.0.00.0070.09320.24
5.6.280.0070.03721.11
5.6.210.0070.07720.73
5.6.200.0130.08018.19
5.6.190.0030.04720.33
5.6.180.0230.04720.39
5.6.170.0170.04720.55
5.6.160.0100.03720.54
5.6.150.0130.08018.18
5.6.140.0170.05318.12
5.6.130.0070.03718.19
5.6.120.0000.04720.98
5.6.110.0070.08721.05
5.6.100.0030.09021.11
5.6.90.0170.07021.13
5.6.80.0230.07320.41
5.5.350.4130.04020.39
5.5.340.0100.06717.98
5.5.330.0000.09020.41
5.5.320.0300.07720.23
5.5.310.0170.04320.30
5.5.300.0200.07017.99
5.5.290.0030.06717.98
5.5.280.0030.06320.69
5.5.270.0070.07720.94
5.5.260.0000.04320.97
5.5.250.0000.06320.80
5.5.240.0370.05720.16

preferences:
46.7 ms | 401 KiB | 5 Q