3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface I { } class A implements I { } class B extends A { } $b = new B(); echo "B <-> I:\n"; var_dump($b instanceof I); var_dump(is_a($b, "I")); var_dump(is_subclass_of($b, "I")); $rc = new ReflectionClass("B"); var_dump($rc->getInterfaceNames()); echo "\n\nB <-> A:\n"; var_dump($b instanceof A); var_dump(is_a($b, "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)
8.3.60.0140.00416.50
8.3.50.0100.00719.87
8.3.40.0110.00418.45
8.3.30.0110.00418.77
8.3.20.0000.00721.90
8.3.10.0080.00023.39
8.3.00.0080.00019.13
8.2.180.0040.01116.63
8.2.170.0040.01122.96
8.2.160.0070.00720.28
8.2.150.0000.00825.66
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00420.86
8.2.110.0100.00721.04
8.2.100.0060.00617.91
8.2.90.0000.00817.75
8.2.80.0000.00818.82
8.2.70.0050.00317.63
8.2.60.0060.00317.50
8.2.50.0000.00817.50
8.2.40.0030.00519.23
8.2.30.0080.00019.11
8.2.20.0040.00418.18
8.2.10.0000.00718.06
8.2.00.0080.00017.61
8.1.280.0120.00625.92
8.1.270.0090.00020.32
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0030.01022.05
8.1.230.0100.00020.77
8.1.220.0050.00317.78
8.1.210.0000.01018.77
8.1.200.0000.00817.35
8.1.190.0030.00517.00
8.1.180.0000.00818.10
8.1.170.0050.00317.62
8.1.160.0070.00018.96
8.1.150.0040.00420.32
8.1.140.0030.00519.57
8.1.130.0040.00419.07
8.1.120.0040.00417.53
8.1.110.0040.00417.49
8.1.100.0040.00417.37
8.1.90.0000.00717.45
8.1.80.0040.00417.37
8.1.70.0070.00017.52
8.1.60.0000.00817.45
8.1.50.0070.00017.58
8.1.40.0040.00417.52
8.1.30.0040.00417.65
8.1.20.0000.00717.51
8.1.10.0040.00417.60
8.1.00.0030.00517.50
8.0.300.0050.00218.87
8.0.290.0000.00816.75
8.0.280.0070.00018.45
8.0.270.0030.00617.19
8.0.260.0060.00317.27
8.0.250.0080.00016.99
8.0.240.0000.00716.86
8.0.230.0030.00316.98
8.0.220.0000.00816.88
8.0.210.0040.00416.88
8.0.200.0070.00317.02
8.0.190.0040.00417.00
8.0.180.0030.00316.82
8.0.170.0070.00016.99
8.0.160.0000.00716.93
8.0.150.0000.00816.87
8.0.140.0030.00516.89
8.0.130.0030.00313.29
8.0.120.0000.00716.84
8.0.110.0000.00816.90
8.0.100.0020.00516.88
8.0.90.0040.00416.93
8.0.80.0060.00916.82
8.0.70.0000.00717.01
8.0.60.0030.00516.80
8.0.50.0080.00016.89
8.0.30.0120.00617.13
8.0.20.0110.01017.40
8.0.10.0000.00716.99
8.0.00.0120.00616.78
7.4.330.0030.00315.55
7.4.320.0000.00616.50
7.4.300.0000.00616.52
7.4.290.0070.00016.60
7.4.280.0040.00416.40
7.4.270.0030.00616.62
7.4.260.0000.00716.61
7.4.250.0040.00416.49
7.4.240.0000.00816.48
7.4.230.0000.00616.41
7.4.220.0120.00616.63
7.4.210.0120.00316.65
7.4.200.0000.00716.65
7.4.160.0100.00916.51
7.4.150.0070.01417.40
7.4.140.0150.00717.86
7.4.130.0070.01216.49
7.4.120.0110.00816.55
7.4.110.0100.01316.38
7.4.100.0060.01016.32
7.4.90.0130.00416.40
7.4.80.0130.00719.39
7.4.70.0140.00816.43
7.4.60.0110.00616.44
7.4.50.0080.00816.62
7.4.40.0140.00316.40
7.4.30.0070.01016.57
7.4.00.0050.01214.87
7.3.330.0070.00013.33
7.3.320.0000.00513.13
7.3.310.0030.00316.26
7.3.300.0030.00316.32
7.3.290.0060.01016.28
7.3.280.0100.00916.28
7.3.270.0090.00917.40
7.3.260.0100.01116.22
7.3.250.0100.00716.36
7.3.240.0110.01116.55
7.3.230.0100.00616.54
7.3.210.0070.01616.28
7.3.200.0150.00719.39
7.3.190.0040.01216.32
7.3.180.0080.00816.23
7.3.170.0070.01016.41
7.3.160.0040.01216.38
7.3.120.0040.01514.46
7.3.110.0090.00914.36
7.3.100.0070.00414.76
7.3.90.0060.01314.80
7.3.80.0000.01415.00
7.3.70.0060.00314.67
7.3.60.0070.00414.75
7.3.50.0000.01314.96
7.3.40.0000.01214.76
7.3.30.0000.00914.89
7.3.20.0070.00316.60
7.3.10.0040.00716.52
7.3.00.0050.01116.37
7.2.330.0070.01016.55
7.2.320.0140.00916.56
7.2.310.0100.00716.38
7.2.300.0120.01216.54
7.2.290.0080.00816.30
7.2.250.0000.01515.11
7.2.240.0070.01415.25
7.2.230.0120.00615.25
7.2.220.0060.00615.07
7.2.210.0030.01414.57
7.2.200.0030.01014.89
7.2.190.0070.00714.69
7.2.180.0030.01215.01
7.2.170.0090.00614.98
7.2.130.0140.00316.87
7.2.120.0070.00716.51
7.2.110.0030.01416.54
7.2.100.0090.01316.91
7.2.90.0200.00716.84
7.2.80.0000.01816.92
7.2.70.0110.01216.65
7.2.60.0090.00916.95
7.2.50.0050.01316.76
7.2.40.0000.02016.80
7.2.30.0110.01416.78
7.2.20.0170.00016.59
7.2.10.0140.00916.64
7.2.00.0030.01416.70
7.1.330.0070.00715.82
7.1.320.0040.00815.65
7.1.310.0000.01115.94
7.1.300.0100.00015.71
7.1.290.0000.01215.72
7.1.280.0070.00315.53
7.1.270.0060.00315.97
7.1.260.0030.01015.94
7.1.250.0100.00615.59
7.1.240.0090.00615.46
7.1.230.0110.00015.16
7.1.220.0000.01315.35
7.1.210.0090.01315.40
7.1.200.0040.01315.55
7.1.190.0130.00515.49
7.1.180.0130.01315.80
7.1.170.0060.01215.88
7.1.160.0120.00415.47
7.1.150.0060.01115.75
7.1.140.0100.01015.67
7.1.130.0180.00415.80
7.1.120.0100.01015.69
7.1.110.0070.01115.34
7.1.100.0000.01015.33
7.1.90.0050.00515.71
7.1.80.0130.00315.46
7.1.70.0070.00616.46
7.1.60.0050.00716.30
7.1.50.0060.01015.93
7.1.40.0030.01215.70
7.1.30.0040.01015.63
7.1.20.0080.00415.76
7.1.10.0100.03118.76
7.1.00.0080.03819.10
7.0.330.0100.00615.44
7.0.320.0030.00715.04
7.0.310.0130.01015.34
7.0.300.0120.00315.25
7.0.290.0070.01015.24
7.0.280.0110.00815.36
7.0.270.0130.00415.31
7.0.260.0090.00615.27
7.0.250.0060.00615.41
7.0.240.0040.00815.11
7.0.230.0030.00715.04
7.0.220.0120.00415.50
7.0.210.0150.00715.25
7.0.200.0090.00615.93
7.0.190.0220.00315.26
7.0.180.0140.00715.46
7.0.170.0100.00315.26
7.0.160.0060.00915.34
7.0.150.0100.03018.57
7.0.140.0070.03318.63
7.0.130.0070.03118.53
7.0.120.0070.03018.78
7.0.110.0030.04518.67
7.0.100.0060.04318.60
7.0.90.0100.03518.50
7.0.80.0030.03618.53
7.0.70.0150.03418.62
7.0.60.0000.04118.69
7.0.50.0050.03118.57
7.0.40.0050.03617.50
7.0.30.0040.03217.59
7.0.20.0090.02817.67
7.0.10.0020.03517.59
7.0.00.0030.03717.73
5.6.380.0090.00314.10

preferences:
63.23 ms | 401 KiB | 5 Q