3v4l.org

run code in 500+ PHP versions simultaneously
<?php class a {} abstract class b extends a { abstract function foo(); } class c extends b { function foo() {} } abstract class d extends c { abstract function foo(); } // Fatal error: Cannot make non abstract method c::foo() // abstract in class d ?>

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)
8.4.110.0400.00718.19
8.4.100.0350.01017.54
8.4.90.0370.01117.71
8.4.80.0390.00517.57
8.4.70.0430.00517.84
8.4.60.0320.00817.54
8.4.50.0350.00717.93
8.4.40.0410.01117.41
8.4.30.0390.01217.38
8.4.20.0360.01117.32
8.4.10.0190.00417.28
8.3.240.0260.01216.98
8.3.230.0380.00716.42
8.3.220.0390.00716.45
8.3.210.0360.00716.49
8.3.200.0140.00616.54
8.3.190.0170.00416.55
8.3.180.0370.01016.24
8.3.170.0420.00616.36
8.3.160.0390.01116.41
8.3.150.0420.00816.26
8.3.140.0370.01416.18
8.3.130.0330.00816.72
8.3.120.0360.00816.48
8.3.110.0390.00916.48
8.3.100.0420.00916.41
8.3.90.0430.00816.30
8.3.80.0450.00516.50
8.3.70.0420.00716.53
8.3.60.0430.00516.71
8.3.50.0360.00616.56
8.3.40.0440.00617.41
8.3.30.0320.00717.24
8.3.20.0310.01017.30
8.3.10.0340.00717.14
8.3.00.0380.01117.16
8.2.290.0310.01016.13
8.2.280.0190.00216.43
8.2.270.0170.00416.21
8.2.260.0140.00616.03
8.2.250.0170.00516.59
8.2.240.0180.00516.02
8.2.230.0140.00516.55
8.2.220.0200.00216.54
8.2.210.0170.00416.19
8.2.200.0160.00616.07
8.2.190.0150.00716.61
8.2.180.0130.00716.18
8.2.170.0210.00517.38
8.2.160.0170.00417.49
8.2.150.0160.00617.11
8.2.140.0180.00317.51
8.2.130.0170.00417.19
8.2.120.0220.00317.34
8.2.110.0160.00517.32
8.2.100.0220.00317.31
8.2.90.0150.00617.55
8.2.80.0150.00617.31
8.2.70.0170.00416.87
8.2.60.0180.00317.31
8.2.50.0170.00317.38
8.2.40.0160.00417.12
8.2.30.0170.00217.08
8.2.20.0240.00517.12
8.2.10.0190.00317.11
8.2.00.0140.00617.03
8.1.330.0160.00315.93
8.1.320.0160.00316.23
8.1.310.0150.00515.86
8.1.300.0180.00316.09
8.1.290.0160.00415.86
8.1.280.0160.00316.07
8.1.270.0150.00417.06
8.1.260.0140.00316.89
8.1.250.0140.00716.95
8.1.240.0140.00516.87
8.1.230.0150.00417.01
8.1.220.0150.00516.91
8.1.210.0160.00216.99
8.1.200.0140.00616.64
8.1.190.0180.00616.79
8.1.180.0130.00617.11
8.1.170.0160.00217.04
8.1.160.0170.00416.89
8.1.150.0140.00616.98
8.1.140.0160.00316.96
8.1.130.0140.00416.98
8.1.120.0130.00517.27
8.1.110.0170.00317.26
8.1.100.0110.00716.97
8.1.90.0160.00316.94
8.1.80.0160.00417.20
8.1.70.0140.00417.11
8.1.60.0140.00418.89
8.1.50.0180.00317.06
8.1.40.0180.00218.79
8.1.30.0160.00317.41
8.1.20.0140.00517.09
8.1.10.0150.00517.19
8.1.00.0150.00417.29
8.0.300.0180.00516.34
8.0.290.0170.00216.61
8.0.280.0170.00216.33
8.0.270.0130.00316.36
8.0.260.0180.00216.58
8.0.250.0160.00216.43
8.0.240.0140.00116.57
8.0.230.0140.00216.55
8.0.220.0120.00416.54
8.0.210.0130.00316.39
8.0.200.0130.00416.56
8.0.190.0290.00616.61
8.0.180.0180.00516.74
8.0.170.0320.00716.57
8.0.160.0300.00716.65
8.0.150.0310.00616.43
8.0.140.0300.00616.67
8.0.130.0210.00416.64
8.0.120.0210.00716.22
8.0.110.0180.00816.47
8.0.100.0190.00816.34
8.0.90.0230.00816.62
8.0.80.0190.00516.46
8.0.70.0230.00716.51
8.0.60.0270.01016.64
8.0.50.0250.00816.34
8.0.30.0280.00816.25
8.0.20.0300.01016.63
8.0.10.0320.00516.63
8.0.00.0330.00716.75
7.4.330.0320.00316.35
7.4.320.0250.01016.09
7.4.300.0280.00616.27
7.4.290.0270.00816.07
7.4.280.0280.00416.21
7.4.270.0280.00616.27
7.4.260.0270.00515.96
7.4.250.0240.00515.98
7.4.240.0130.00216.20
7.4.230.0180.00216.12
7.4.220.0110.00516.22
7.4.210.0160.00316.12
7.4.200.0170.00716.09
7.4.190.0300.00916.14
7.4.180.0250.00616.32
7.4.160.0320.00616.20
7.4.150.0310.00916.07
7.4.140.0400.00616.12
7.4.130.0290.00715.94
7.4.120.0300.00616.09
7.4.110.0240.00616.10
7.4.100.0260.00416.09
7.4.90.0310.00516.13
7.4.80.0280.01115.81
7.4.70.0290.00716.10
7.4.60.0290.00616.14
7.4.50.0210.00316.00
7.4.40.0130.00316.04
7.4.30.0130.00416.05
7.4.20.0280.00815.59
7.4.10.0250.00815.83
7.4.00.0320.00416.05
7.3.330.0290.00715.99
7.3.320.0220.01015.94
7.3.310.0260.00515.82
7.3.300.0220.00715.95
7.3.290.0200.00415.96
7.3.280.0130.00315.95
7.3.270.0130.00315.89
7.3.260.0300.00616.05
7.3.250.0290.00716.05
7.3.240.0280.00415.78
7.3.230.0260.00815.93
7.3.220.0290.00415.96
7.3.210.0300.00715.89
7.3.200.0270.00915.79
7.3.190.0310.00615.73
7.3.180.0340.00715.60
7.3.170.0270.00615.77
7.3.160.0160.00215.95
7.3.150.0450.00415.82
7.3.140.0310.00515.92
7.3.130.0260.01115.84
7.3.120.0190.00815.98
7.3.110.0250.00915.95
7.3.100.0260.00615.87
7.3.90.0190.00316.29
7.3.80.0290.00615.94
7.3.70.0230.01215.80
7.3.60.0290.00816.01
7.3.50.0290.00516.12
7.3.40.0240.01016.08
7.3.30.0300.00615.96
7.3.20.0300.00917.72
7.3.10.0270.00917.88
7.3.00.0270.00817.70
7.2.340.0270.00716.21
7.2.330.0240.00815.93
7.2.320.0200.00315.98
7.2.310.0290.01015.61
7.2.300.0250.00715.76
7.2.290.0260.00616.11
7.2.280.0270.00615.84
7.2.270.0240.00915.75
7.2.260.0280.00716.09
7.2.250.0260.00615.80
7.2.240.0100.00615.94
7.2.230.0120.00415.95
7.2.220.0190.00715.85
7.2.210.0280.00915.73
7.2.200.0360.00415.74
7.2.190.0300.00716.31
7.2.180.0390.00416.17
7.2.170.0400.00715.98
7.2.160.0190.00516.42
7.2.150.0150.00617.89
7.2.140.0280.00718.16
7.2.130.0270.00918.13
7.2.120.0250.00918.12
7.2.110.0270.00817.75
7.2.100.0280.00718.01
7.2.90.0230.00418.02
7.2.80.0210.00618.07
7.2.70.0280.00418.09
7.2.60.0260.01018.09
7.2.50.0220.00218.16
7.2.40.0120.00317.86
7.2.30.0260.00817.70
7.2.20.0180.00517.93
7.2.10.0140.00218.02
7.2.00.0260.00918.28
7.1.330.0250.00616.82
7.1.320.0220.01217.04
7.1.310.0270.00616.88
7.1.300.0250.00716.75
7.1.290.0270.00916.94
7.1.280.0150.00716.79
7.1.270.0240.00816.81
7.1.260.0240.00617.03
7.1.250.0250.00716.77
7.1.240.0270.00516.78
7.1.230.0240.00616.72
7.1.220.0210.00916.36
7.1.210.0250.00616.66
7.1.200.0260.00616.75
7.1.190.0280.00516.80
7.1.180.0280.00816.90
7.1.170.0230.00916.78
7.1.160.0270.00516.93
7.1.150.0170.00116.95
7.1.140.0130.00316.57
7.1.130.0110.00316.88
7.1.120.0130.00116.63
7.1.110.0240.00916.49
7.1.100.0240.00616.75
7.1.90.0270.00616.68
7.1.80.0160.00416.69
7.1.70.0110.00416.51
7.1.60.0130.00116.73
7.1.50.0190.00316.57
7.1.40.0280.00416.70
7.1.30.0280.00416.75
7.1.20.0240.00316.39
7.1.10.0140.00116.58
7.1.00.0140.00616.72
7.0.330.0110.00316.45
7.0.320.0130.00216.47
7.0.310.0110.00316.52
7.0.300.0260.00516.40
7.0.290.0240.00516.44
7.0.280.0160.00416.52
7.0.270.0180.01116.30
7.0.260.0240.00616.30
7.0.250.0260.00616.50
7.0.240.0260.00516.69
7.0.230.0220.00716.41
7.0.220.0130.00316.36
7.0.210.0110.00216.48
7.0.200.0220.00816.58
7.0.190.0210.00816.47
7.0.180.0200.00216.42
7.0.170.0240.00716.37
7.0.160.0260.00516.45
7.0.150.0250.00616.42
7.0.140.0260.00416.46
7.0.130.0240.00616.36
7.0.120.0230.00916.68
7.0.110.0220.00716.32
7.0.100.0310.00516.34
7.0.90.0380.00916.46
7.0.80.0260.00516.23
7.0.70.0260.00416.54
7.0.60.0250.00616.48
7.0.50.0220.01116.53
7.0.40.0280.00316.55
7.0.30.0230.00816.71
7.0.20.0260.00516.44
7.0.10.0240.00716.49
7.0.00.0230.00816.37
5.6.400.0250.00715.54
5.6.390.0270.00615.27
5.6.380.0270.00915.27
5.6.370.0190.00915.33
5.6.360.0270.00515.29
5.6.350.0270.00615.33
5.6.340.0260.00615.29
5.6.330.0250.00715.49
5.6.320.0250.00515.12
5.6.310.0190.00715.45
5.6.300.0240.00715.29
5.6.290.0240.00815.39
5.6.280.0280.00515.31
5.6.270.0260.00615.52
5.6.260.0270.00615.41
5.6.250.0240.00215.41
5.6.240.0090.00515.43
5.6.230.0180.00315.44
5.6.220.0260.00315.59
5.6.210.0260.00415.43
5.6.200.0140.00715.82
5.6.190.0150.00215.50
5.6.180.0280.00415.53
5.6.170.0260.00515.54
5.6.160.0280.00415.40
5.6.150.0250.00715.32
5.6.140.0240.00515.48
5.6.130.0240.00915.68
5.6.120.0220.00815.64
5.6.110.0250.00715.29
5.6.100.0310.00215.48
5.6.90.0230.00615.54
5.6.80.0120.00215.41
5.6.70.0090.00415.50
5.6.60.0290.00415.51
5.6.50.0380.00615.25
5.6.40.0270.00715.58
5.6.30.0210.01015.37
5.6.20.0280.00215.28
5.6.10.0240.00615.24
5.6.00.0260.00715.50
5.5.380.0230.00715.53
5.5.370.0200.00515.45
5.5.360.0180.00415.43
5.5.350.0240.00715.17
5.5.340.0240.00815.43
5.5.330.0200.01115.30
5.5.320.0250.00615.28
5.5.310.0190.00715.19
5.5.300.0220.01015.27
5.5.290.0270.00415.40
5.5.280.0220.00815.12
5.5.270.0230.00815.36
5.5.260.0230.00115.10
5.5.250.0230.00615.45
5.5.240.0250.00415.32
5.5.230.0220.00915.51
5.5.220.0250.00515.57
5.5.210.0230.00715.64
5.5.200.0210.01014.97
5.5.190.0220.00815.27
5.5.180.0260.00415.48
5.5.170.0220.01015.39
5.5.160.0240.00615.09
5.5.150.0210.00815.32
5.5.140.0230.00614.94
5.5.130.0150.00515.02
5.5.120.0180.00715.22
5.5.110.0160.00415.03
5.5.100.0220.00915.18
5.5.90.0220.00815.40
5.5.80.0210.01015.54
5.5.70.0190.00615.32
5.5.60.0140.00515.33
5.5.50.0110.00315.69
5.5.40.0240.00415.27
5.5.30.0230.00715.44
5.5.20.0300.00815.51
5.5.10.0440.00715.05
5.5.00.0240.00714.88
5.4.450.0190.00513.75
5.4.440.0200.00513.75
5.4.430.0200.00413.75
5.4.420.0190.00613.75
5.4.410.0190.00513.75
5.4.400.0120.00913.75
5.4.390.0190.00513.75
5.4.380.0230.00113.75
5.4.370.0160.00913.75
5.4.360.0170.00513.75
5.4.350.0090.00213.75
5.4.340.0100.00213.75
5.4.330.0150.00213.75
5.4.320.0070.00413.75
5.4.310.0100.00213.75
5.4.300.0090.00213.75
5.4.290.0130.00313.75
5.4.280.0140.00713.75
5.4.270.0190.01013.75
5.4.260.0140.00513.75
5.4.250.0080.00413.75
5.4.240.0060.00513.75
5.4.230.0080.00413.75
5.4.220.0190.00613.75
5.4.210.0180.00613.75
5.4.200.0160.00313.75
5.4.190.0080.00313.75
5.4.180.0080.00313.75
5.4.170.0070.00413.75
5.4.160.0080.00313.75
5.4.150.0090.00213.75
5.4.140.0070.00413.75
5.4.130.0080.00313.75
5.4.120.0160.00713.75
5.4.110.0180.00413.75
5.4.100.0160.00613.75
5.4.90.0150.00313.75
5.4.80.0130.00813.75
5.4.70.0210.00313.75
5.4.60.0200.00613.75
5.4.50.0190.00513.75
5.4.40.0070.00313.75
5.4.30.0090.00313.75
5.4.20.0130.00113.75
5.4.10.0110.00113.75
5.4.00.0100.00113.75
5.3.290.0220.00313.75
5.3.280.0270.00413.75
5.3.270.0140.00413.75
5.3.260.0200.00513.75
5.3.250.0180.00613.75
5.3.240.0090.00213.75
5.3.230.0070.00413.75
5.3.220.0220.00213.75
5.3.210.0160.00713.75
5.3.200.0130.00513.75
5.3.190.0190.00613.75
5.3.180.0170.00413.75
5.3.170.0240.00313.75
5.3.160.0170.01013.75
5.3.150.0200.00513.75
5.3.140.0190.00513.75
5.3.130.0130.00413.75
5.3.120.0110.00013.75
5.3.110.0190.00513.75
5.3.100.0200.00413.75
5.3.90.0190.00513.75
5.3.80.0210.00313.75
5.3.70.0170.00713.75
5.3.60.0190.00513.75
5.3.50.0190.00513.75
5.3.40.0180.00613.75
5.3.30.0200.00513.75
5.3.20.0180.00313.75
5.3.10.0160.00813.75
5.3.00.0180.00513.75
5.2.170.0150.00513.75
5.2.160.0180.00213.75
5.2.150.0160.00513.75
5.2.140.0170.00413.75
5.2.130.0160.00413.75
5.2.120.0130.00513.75
5.2.110.0170.00313.75
5.2.100.0150.00613.75
5.2.90.0160.00413.75
5.2.80.0120.00813.75
5.2.70.0160.00613.75
5.2.60.0150.00513.75
5.2.50.0170.00313.75
5.2.40.0170.00313.75
5.2.30.0160.00413.75
5.2.20.0160.00413.75
5.2.10.0110.00913.75
5.2.00.0160.00713.75
5.1.60.0150.00513.75
5.1.50.0150.00313.75
5.1.40.0140.00413.75
5.1.30.0140.00513.75
5.1.20.0140.00613.75
5.1.10.0150.00413.75
5.1.00.0130.00513.75
5.0.50.0120.00413.75
5.0.40.0100.00613.75
5.0.30.0120.00613.75
5.0.20.0100.00513.75
5.0.10.0080.00613.75
5.0.00.0110.00413.75
4.4.90.0080.00113.75
4.4.80.0070.00213.75
4.4.70.0090.00013.75
4.4.60.0070.00213.75
4.4.50.0080.00113.75
4.4.40.0070.00213.75
4.4.30.0090.00013.75
4.4.20.0080.00113.75
4.4.10.0100.00013.75
4.4.00.0090.00113.75
4.3.110.0080.00113.75
4.3.100.0080.00113.75
4.3.90.0110.00213.75
4.3.80.0090.00213.75
4.3.70.0100.00313.75
4.3.60.0090.00013.75
4.3.50.0080.00113.75
4.3.40.0040.00313.75
4.3.30.0030.00013.75
4.3.20.0030.00013.75
4.3.10.0060.00113.75
4.3.00.0020.00113.75

preferences:
124.95 ms | 2623 KiB | 4 Q