3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { } class B extends A { } var_dump(is_subclass_of('B', '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)
8.3.60.0100.00718.43
8.3.50.0120.01021.08
8.3.40.0090.01218.79
8.3.30.0030.01019.05
8.3.20.0080.00020.38
8.3.10.0070.00021.92
8.3.00.0110.00722.28
8.2.180.0120.00616.50
8.2.170.0180.00322.96
8.2.160.0150.00020.35
8.2.150.0070.01124.18
8.2.140.0170.00324.66
8.2.130.0040.00426.16
8.2.120.0030.00619.43
8.2.110.0060.00321.94
8.2.100.0060.00617.78
8.2.90.0040.00418.93
8.2.80.0000.00719.38
8.2.70.0050.00317.25
8.2.60.0000.00817.66
8.2.50.0080.00018.07
8.2.40.0000.00818.09
8.2.30.0050.00217.81
8.2.20.0060.00317.59
8.2.10.0000.00717.52
8.2.00.0000.00717.61
8.1.280.0100.00325.92
8.1.270.0150.00320.23
8.1.260.0090.00626.35
8.1.250.0080.00028.09
8.1.240.0030.00623.92
8.1.230.0090.00320.97
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0100.00017.10
8.1.190.0000.00817.38
8.1.180.0000.00819.01
8.1.170.0040.00418.65
8.1.160.0030.00322.18
8.1.150.0000.00718.39
8.1.140.0000.00717.32
8.1.130.0030.00317.80
8.1.120.0050.00317.22
8.1.110.0080.00017.23
8.1.100.0000.00717.35
8.1.90.0000.00717.37
8.1.80.0000.00717.32
8.1.70.0030.00317.31
8.1.60.0040.00417.35
8.1.50.0040.00417.43
8.1.40.0040.00417.41
8.1.30.0050.00217.48
8.1.20.0030.00517.44
8.1.10.0070.00017.37
8.1.00.0100.00017.16
8.0.300.0030.00618.77
8.0.290.0000.00717.05
8.0.280.0070.00018.29
8.0.270.0070.00017.12
8.0.260.0060.00016.68
8.0.250.0030.00316.73
8.0.240.0000.00816.79
8.0.230.0030.00316.79
8.0.220.0060.00016.77
8.0.210.0030.00416.80
8.0.200.0000.00616.81
8.0.190.0040.00416.72
8.0.180.0070.00016.71
8.0.170.0040.00416.80
8.0.160.0080.00016.64
8.0.150.0000.00716.62
8.0.140.0000.00716.65
8.0.130.0030.00313.23
8.0.120.0070.00016.74
8.0.110.0000.00816.68
8.0.100.0070.00016.82
8.0.90.0040.00416.67
8.0.80.0100.00716.68
8.0.70.0070.00016.73
8.0.60.0000.00716.74
8.0.50.0030.00516.76
8.0.30.0130.00816.78
8.0.20.0090.00917.40
8.0.10.0040.00416.91
8.0.00.0110.00816.58
7.4.330.0000.00615.00
7.4.320.0060.00016.42
7.4.300.0040.00416.36
7.4.290.0060.00016.46
7.4.280.0040.00416.45
7.4.270.0000.00716.39
7.4.260.0000.00916.48
7.4.250.0070.00016.27
7.4.240.0000.00716.43
7.4.230.0040.00416.54
7.4.220.0070.01016.55
7.4.210.0100.00616.43
7.4.200.0000.00616.29
7.4.190.0030.00516.62
7.4.160.0090.00916.55
7.4.150.0100.00717.40
7.4.140.0120.00517.86
7.4.130.0090.01016.44
7.4.120.0090.01116.35
7.4.110.0090.01216.30
7.4.100.0070.01016.30
7.4.90.0030.01316.39
7.4.80.0060.01619.39
7.4.70.0030.01416.51
7.4.60.0080.00816.45
7.4.50.0030.00316.45
7.4.40.0030.01222.77
7.4.30.0090.01116.33
7.4.00.0000.01514.99
7.3.330.0020.00213.21
7.3.320.0030.00313.04
7.3.310.0000.00716.27
7.3.300.0000.00616.18
7.3.290.0110.00816.09
7.3.280.0090.00916.17
7.3.270.0140.00717.40
7.3.260.0000.01616.05
7.3.250.0140.00516.13
7.3.240.0100.00716.35
7.3.230.0190.00016.39
7.3.210.0090.00616.03
7.3.200.0130.00419.39
7.3.190.0070.01116.20
7.3.180.0060.01015.98
7.3.170.0120.00616.27
7.3.160.0060.01116.39
7.3.120.0060.00614.66
7.2.330.0060.01116.50
7.2.320.0130.00316.23
7.2.310.0070.01716.25
7.2.300.0070.01016.33
7.2.290.0080.00816.27
7.1.200.0040.00715.41
7.1.70.0060.00317.15
7.1.60.0040.01819.50
7.1.50.0070.01416.84
7.1.00.0030.03322.30
7.0.200.0000.00716.71
7.0.140.0030.07322.00
7.0.60.0270.07721.77
7.0.50.0030.04017.97
7.0.40.0100.08020.23
7.0.30.0370.06720.19
7.0.20.0270.08320.06
7.0.10.0070.05020.24
7.0.00.0000.07020.25
5.6.280.0030.09720.77
5.6.210.0070.08020.62
5.6.200.0100.05018.14
5.6.190.0070.04020.62
5.6.180.0300.08320.33
5.6.170.0300.06320.66
5.6.160.0170.07320.46
5.6.150.0100.06318.29
5.6.140.0030.03718.27
5.6.130.0100.04018.18
5.6.120.0030.04020.97
5.6.110.0000.04720.95
5.6.100.0070.06721.09
5.6.90.0100.07320.95
5.6.80.0070.05020.30
5.5.350.0230.05720.42
5.5.340.0000.04717.97
5.5.330.0100.07020.43
5.5.320.0330.07720.41
5.5.310.0400.03320.28
5.5.300.0170.03017.95
5.5.290.0100.07717.96
5.5.280.0200.04720.65
5.5.270.0070.07320.67
5.5.260.0070.08320.60
5.5.250.0070.07720.68
5.5.240.0330.06720.26
5.4.450.4830.04019.39
5.4.440.0070.07719.45
5.4.430.1170.04019.30
5.4.420.4070.03719.31
5.4.410.4630.03019.34
5.4.400.3770.03718.97
5.4.390.0130.07719.20
5.4.380.2830.04019.21
5.4.370.0170.07719.05
5.4.360.2670.03719.04
5.4.350.3830.03019.12
5.4.340.4230.03319.21
5.4.320.3670.04719.15
5.4.310.4430.03719.21
5.4.300.4300.04019.21
5.4.290.4800.02718.93
5.4.280.4770.03319.04
5.4.270.4100.04319.04
5.4.260.4270.03318.97
5.4.250.4600.03019.12
5.4.240.3630.04019.18
5.4.230.4630.03719.25
5.4.220.3830.03719.11
5.4.210.3870.03319.07
5.4.200.3530.04019.19
5.4.190.4400.03318.96
5.4.180.4270.04019.20
5.4.170.4070.03719.14
5.4.160.3600.03318.91
5.4.150.4570.03719.04
5.4.140.3930.04016.55
5.4.130.4370.03716.39
5.4.120.3370.03016.41
5.4.110.3330.03716.61
5.4.100.3370.03316.57
5.4.90.3970.03316.53
5.4.80.3770.04016.31
5.4.70.4670.03316.55
5.4.60.4670.03016.29
5.4.50.4400.03716.32
5.4.40.3800.03716.42
5.4.30.3730.04016.52
5.4.20.4700.04716.29
5.4.10.3930.03716.44
5.4.00.4070.03315.70
5.3.290.4100.04014.68
5.3.280.3770.04014.58
5.3.270.4300.04314.59
5.3.260.4670.04014.48
5.3.250.3870.04314.75
5.3.240.4600.03714.60
5.3.230.3730.03014.61
5.3.220.4100.04314.47
5.3.210.3400.04014.57
5.3.200.3730.03314.58
5.3.190.3500.03714.61
5.3.180.3870.03714.55
5.3.170.3970.04014.59
5.3.160.4530.03714.61
5.3.150.4070.03314.59
5.3.140.4330.03314.58
5.3.130.3670.03014.55
5.3.120.4570.03714.70
5.3.110.4230.04014.46
5.3.100.4070.03314.20
5.3.90.4330.04314.06
5.3.80.4530.04014.01
5.3.70.2330.03013.98
5.3.60.1530.03714.14
5.3.50.2500.04013.93
5.3.40.3330.03313.94
5.3.30.0600.03313.90
5.3.20.0030.03713.74
5.3.10.3400.02313.68
5.3.00.2930.02713.68
5.2.170.1630.03311.21
5.2.160.2800.03711.06
5.2.150.2830.02711.11
5.2.140.0030.03011.30
5.2.130.0030.02711.15
5.2.120.2070.02711.05
5.2.110.2700.02311.13
5.2.100.2630.03311.05
5.2.90.1970.03011.10
5.2.80.1800.03011.23
5.2.70.2630.04011.12
5.2.60.2330.03311.12
5.2.50.3170.03710.90
5.2.40.2570.02011.15
5.2.30.2800.03310.92
5.2.20.2730.03010.95
5.2.10.2430.02710.91
5.2.00.2570.02710.71
5.1.60.2700.04310.04
5.1.50.3300.02310.14
5.1.40.0630.03710.02
5.1.30.0070.04710.39
5.1.20.0070.05310.50
5.1.10.0000.04010.02
5.1.00.0070.03710.12
5.0.50.1000.0238.54
5.0.40.2100.0208.31
5.0.30.1530.0338.20
5.0.20.1800.0178.18
5.0.10.1270.0178.18
5.0.00.1400.0308.12
4.4.90.0500.0175.78
4.4.80.0600.0175.75
4.4.70.1330.0175.80
4.4.60.1430.0205.88
4.4.50.1500.0175.85
4.4.40.1470.0305.79
4.4.30.1800.0175.78
4.4.20.0070.0305.86
4.4.10.0030.0305.88
4.4.00.1530.0175.92
4.3.110.1800.0205.70
4.3.100.1800.0175.79
4.3.90.1530.0235.80
4.3.80.1630.0375.67
4.3.70.1470.0135.68
4.3.60.1470.0135.70
4.3.50.1530.0135.74
4.3.40.1030.0205.76
4.3.30.0470.0305.11
4.3.20.0970.0235.11
4.3.10.0770.0175.11
4.3.00.0870.0235.11

preferences:
37.66 ms | 401 KiB | 5 Q