3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface A { } class B implements A { } $x = 'B'; var_dump( is_subclass_of( $x, '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)
8.3.60.0110.00416.50
8.3.50.0150.00622.12
8.3.40.0110.00418.72
8.3.30.0070.00718.96
8.3.20.0040.00420.09
8.3.10.0000.00723.71
8.3.00.0080.00019.13
8.2.180.0070.00718.06
8.2.170.0070.00722.96
8.2.160.0130.00720.14
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0110.00426.16
8.2.120.0040.00422.11
8.2.110.0000.01022.32
8.2.100.0040.00817.64
8.2.90.0080.00019.09
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0070.00017.80
8.2.50.0030.00618.07
8.2.40.0040.00418.22
8.2.30.0070.00018.11
8.2.20.0040.00417.73
8.2.10.0090.00017.99
8.2.00.0030.00817.61
8.1.280.0140.00025.92
8.1.270.0040.00422.01
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0100.00022.19
8.1.230.0080.00317.52
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0000.00717.53
8.1.180.0060.00319.01
8.1.170.0090.00018.36
8.1.160.0000.00722.00
8.1.150.0000.00718.55
8.1.140.0000.00717.36
8.1.130.0000.00717.76
8.1.120.0040.00417.50
8.1.110.0030.00617.40
8.1.100.0050.00317.43
8.1.90.0030.00317.37
8.1.80.0030.00617.42
8.1.70.0040.00417.45
8.1.60.0050.00317.55
8.1.50.0050.00317.50
8.1.40.0040.00417.48
8.1.30.0000.00817.61
8.1.20.0050.00317.54
8.1.10.0040.00417.37
8.1.00.0030.00617.37
8.0.300.0060.00318.77
8.0.290.0040.00416.62
8.0.280.0000.00718.44
8.0.270.0030.00317.13
8.0.260.0000.00717.12
8.0.250.0030.00316.83
8.0.240.0050.00216.91
8.0.230.0050.00316.83
8.0.220.0000.00716.78
8.0.210.0030.00316.80
8.0.200.0000.00716.93
8.0.190.0000.00716.97
8.0.180.0040.00416.80
8.0.170.0000.00816.82
8.0.160.0040.00416.89
8.0.150.0040.00816.72
8.0.140.0040.00416.81
8.0.130.0000.00513.40
8.0.120.0000.00716.90
8.0.110.0040.00416.87
8.0.100.0040.00416.75
8.0.90.0040.00416.91
8.0.80.0070.00716.84
8.0.70.0030.00316.79
8.0.60.0040.00416.87
8.0.50.0000.00716.75
8.0.30.0060.01217.14
8.0.20.0060.01217.40
8.0.10.0050.00216.87
8.0.00.0100.00716.70
7.4.330.0000.00515.00
7.4.320.0000.00716.41
7.4.300.0030.00316.60
7.4.290.0030.00316.61
7.4.280.0000.00816.58
7.4.270.0030.00316.52
7.4.260.0000.00816.48
7.4.250.0000.00816.60
7.4.240.0020.00516.50
7.4.230.0000.00716.58
7.4.220.0070.01416.41
7.4.210.0050.01116.49
7.4.200.0040.00416.49
7.4.190.0030.00316.49
7.4.160.0150.00316.58
7.4.150.0090.00917.40
7.4.140.0090.01117.86
7.4.130.0090.00916.46
7.4.120.0110.00716.55
7.4.110.0040.01216.38
7.4.100.0080.00816.29
7.4.90.0070.01016.44
7.4.80.0040.01419.39
7.4.70.0120.00316.52
7.4.60.0100.00616.41
7.4.50.0040.00416.34
7.4.40.0080.00322.77
7.4.30.0170.00716.50
7.4.00.0030.01414.77
7.3.330.0000.00512.93
7.3.320.0000.00513.18
7.3.310.0000.00816.21
7.3.300.0060.00016.17
7.3.290.0120.00316.11
7.3.280.0080.00916.17
7.3.270.0140.00317.40
7.3.260.0090.01516.25
7.3.250.0120.00516.35
7.3.240.0160.00816.46
7.3.230.0100.00716.55
7.3.210.0140.00316.37
7.3.200.0090.00919.39
7.3.190.0140.00316.23
7.3.180.0070.01016.52
7.3.170.0180.00316.52
7.3.160.0040.01216.09
7.3.120.0060.01214.92
7.3.10.0090.00616.45
7.3.00.0130.00216.36
7.2.330.0080.01216.37
7.2.320.0070.01016.66
7.2.310.0030.01416.52
7.2.300.0120.00416.39
7.2.290.0100.00716.56
7.2.130.0060.00916.69
7.2.120.0120.00716.44
7.2.110.0060.00616.36
7.2.100.0150.00316.31
7.2.90.0070.01016.89
7.2.80.0060.01016.54
7.2.70.0040.00716.63
7.2.60.0160.00216.56
7.2.50.0060.00616.69
7.2.40.0100.00516.78
7.2.30.0100.00716.84
7.2.20.0120.00316.67
7.2.10.0110.00916.61
7.2.00.0100.00817.50
7.1.250.0050.01015.48
7.1.200.0090.00315.69
7.1.100.0060.00618.16
7.1.70.0030.00617.06
7.1.60.0100.01319.46
7.1.50.0110.00616.80
7.1.00.0070.07322.31
7.0.200.0030.00716.54
7.0.140.0070.07022.01
7.0.60.0100.07719.93
7.0.50.0130.07717.83
7.0.40.0030.08320.26
7.0.30.0200.06720.06
7.0.20.0200.07720.26
7.0.10.0070.08320.07
7.0.00.0100.08720.23
5.6.280.0000.07321.10
5.6.210.0070.03720.64
5.6.200.0200.07018.16
5.6.190.0100.08320.57
5.6.180.0400.06720.52
5.6.170.0200.04020.67
5.6.160.0130.07720.46
5.6.150.0130.06718.15
5.6.140.0100.08018.17
5.6.130.0030.08718.17
5.6.120.0030.04321.01
5.6.110.0100.08321.11
5.6.100.0070.08721.11
5.6.90.0170.07320.92
5.6.80.0130.07320.42
5.6.70.3830.03720.36
5.5.350.0130.07020.41
5.5.340.0170.07317.95
5.5.330.0030.04320.41
5.5.320.0130.05720.35
5.5.310.0200.03720.36
5.5.300.0070.05318.07
5.5.290.0070.05317.95
5.5.280.0030.05720.88
5.5.270.0100.08320.72
5.5.260.0130.07720.75
5.5.250.0100.07020.46
5.5.240.0170.04320.26
5.4.450.0830.06019.44
5.4.440.0900.06719.16
5.4.430.1030.06019.61
5.4.420.0630.05319.61
5.4.410.1130.05019.35
5.4.400.0670.05019.29
5.4.390.0730.05019.26
5.4.380.0330.05018.59
5.4.370.0270.05318.71
5.4.360.0370.07718.75
5.4.350.0430.05318.80
5.4.340.0370.05318.48
5.4.320.0070.03912.50
5.4.310.0070.04512.49
5.4.300.0080.04512.49
5.4.290.0100.04012.49
5.4.280.0080.03612.36
5.4.270.0050.05312.37
5.4.260.0100.05012.36
5.4.250.0060.05612.37
5.4.240.0110.03812.36
5.4.230.0100.03812.36
5.4.220.0080.03612.36
5.4.210.0070.04312.36
5.4.200.0080.03912.35
5.4.190.0060.03612.35
5.4.180.0100.03712.36
5.4.170.0100.03612.36
5.4.160.0100.03412.36
5.4.150.0100.03412.35
5.4.140.0050.04312.04
5.4.130.0110.03612.03
5.4.120.0070.03911.98
5.4.110.0080.05011.98
5.4.100.0090.03611.98
5.4.90.0100.03611.98
5.4.80.0110.03311.98
5.4.70.0070.04311.98
5.4.60.0070.04811.98
5.4.50.0030.05011.98
5.4.40.0070.03611.97
5.4.30.0070.03811.96
5.4.20.0090.03911.96
5.4.10.0120.04811.96
5.4.00.0070.04711.45
5.3.290.0060.05212.80
5.3.280.0120.04112.71
5.3.270.0100.04012.73
5.3.260.0200.06112.72
5.3.250.0120.06912.71
5.3.240.0090.05512.72
5.3.230.0100.03812.71
5.3.220.0100.03912.68
5.3.210.0070.06112.68
5.3.200.0100.04912.68
5.3.190.0070.05412.68
5.3.180.0100.05212.68
5.3.170.0140.05812.67
5.3.160.0090.05312.67
5.3.150.0120.04112.67
5.3.140.0090.03612.66
5.3.130.0090.04112.66
5.3.120.0080.04312.66
5.3.110.0050.04112.66
5.3.100.0070.03812.12
5.3.90.0060.04312.08
5.3.80.0110.04512.08
5.3.70.0100.05012.07
5.3.60.0180.07012.06
5.3.50.0180.07212.00
5.3.40.0150.06912.00
5.3.30.0140.05511.95
5.3.20.0140.06211.73
5.3.10.0120.05311.70
5.3.00.0060.04111.69
5.2.170.0070.0309.18
5.2.160.0120.0399.18
5.2.150.0070.0329.18
5.2.140.0050.0319.18
5.2.130.0050.0299.14
5.2.120.0040.0299.14
5.2.110.0070.0289.15
5.2.100.0040.0299.14
5.2.90.0080.0319.14
5.2.80.0030.0419.14
5.2.70.0090.0489.13
5.2.60.0090.0429.09
5.2.50.0080.0439.06
5.2.40.0080.0389.04
5.2.30.0090.0419.02
5.2.20.0070.0408.99
5.2.10.0080.0318.91
5.2.00.0100.0358.77
5.1.60.0060.0298.05
5.1.50.0080.0338.06
5.1.40.0070.0348.04
5.1.30.0070.0318.38
5.1.20.0060.0378.41
5.1.10.0060.0268.14
5.1.00.0040.0288.13
5.0.50.0070.0206.61
5.0.40.0080.0266.47
5.0.30.0050.0326.29
5.0.20.0040.0236.25
5.0.10.0020.0306.23
5.0.00.0050.0356.21
4.4.90.0050.0164.78
4.4.80.0050.0134.75
4.4.70.0050.0144.76
4.4.60.0010.0174.75
4.4.50.0050.0144.77
4.4.40.0040.0314.71
4.4.30.0050.0244.76
4.4.20.0090.0174.84
4.4.10.0070.0164.85
4.4.00.0060.0314.76
4.3.110.0070.0184.67
4.3.100.0060.0144.67
4.3.90.0050.0134.63
4.3.80.0050.0264.58
4.3.70.0040.0174.63
4.3.60.0050.0154.63
4.3.50.0030.0184.63
4.3.40.0050.0314.54
4.3.30.0040.0173.27
4.3.20.0020.0233.25
4.3.10.0030.0213.21
4.3.00.0170.02310.30

preferences:
48.96 ms | 401 KiB | 5 Q