3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Bar {}; class Bla extends Bar {}; class Foo extends Bla {}; $foo = new Foo(); $className = 'Bar'; var_dump(is_subclass_of($foo, $className));

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)
8.3.60.0070.01516.50
8.3.50.0090.00616.20
8.3.40.0040.01418.65
8.3.30.0110.00418.41
8.3.20.0040.00420.34
8.3.10.0120.00021.77
8.3.00.0050.00222.05
8.2.180.0120.00916.63
8.2.170.0040.01122.96
8.2.160.0070.00718.70
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0090.00019.24
8.2.120.0030.00526.35
8.2.110.0030.00622.11
8.2.100.0070.00417.78
8.2.90.0080.00017.90
8.2.80.0080.00317.97
8.2.70.0090.00317.34
8.2.60.0000.00817.91
8.2.50.0080.00018.10
8.2.40.0030.00520.53
8.2.30.0040.00420.91
8.2.20.0110.00017.97
8.2.10.0070.00017.95
8.2.00.0040.00417.95
8.1.280.0040.01125.92
8.1.270.0080.00021.93
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0040.00422.05
8.1.230.0040.00720.99
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0030.00517.23
8.1.180.0040.00418.10
8.1.170.0070.00018.86
8.1.160.0030.00318.99
8.1.150.0080.00020.52
8.1.140.0000.00819.39
8.1.130.0030.00318.76
8.1.120.0040.00417.28
8.1.110.0050.00317.33
8.1.100.0050.00217.38
8.1.90.0090.00017.43
8.1.80.0000.00717.40
8.1.70.0080.00017.29
8.1.60.0090.00017.51
8.1.50.0040.00417.45
8.1.40.0040.00417.38
8.1.30.0040.00417.43
8.1.20.0040.00417.57
8.1.10.0060.00317.45
8.1.00.0040.00417.44
8.0.300.0030.00419.90
8.0.290.0060.00316.63
8.0.280.0040.00418.25
8.0.270.0000.00717.11
8.0.260.0030.00316.73
8.0.250.0000.00716.91
8.0.240.0000.01016.81
8.0.230.0040.00416.89
8.0.220.0040.00416.76
8.0.210.0000.00716.75
8.0.200.0030.00316.74
8.0.190.0050.00316.84
8.0.180.0000.00716.86
8.0.170.0080.00016.87
8.0.160.0050.00316.88
8.0.150.0040.00416.77
8.0.140.0070.00016.80
8.0.130.0000.00613.24
8.0.120.0040.00416.81
8.0.110.0000.00716.59
8.0.100.0070.00016.75
8.0.90.0040.00416.82
8.0.80.0140.00716.86
8.0.70.0070.00016.77
8.0.60.0040.00416.76
8.0.50.0000.00716.66
8.0.30.0090.01017.12
8.0.20.0100.01117.40
8.0.10.0040.00416.96
8.0.00.0030.01416.78
7.4.330.0000.00515.55
7.4.320.0000.00616.43
7.4.300.0000.00716.44
7.4.290.0050.00316.52
7.4.280.0040.00416.50
7.4.270.0040.00416.46
7.4.260.0040.00416.53
7.4.250.0000.00716.41
7.4.240.0040.00416.44
7.4.230.0030.00316.50
7.4.220.0100.01416.43
7.4.210.0040.01416.42
7.4.200.0000.00816.50
7.4.160.0060.00916.31
7.4.150.0050.01417.40
7.4.140.0090.00817.86
7.4.130.0070.01716.32
7.4.120.0150.00416.28
7.4.110.0090.01516.37
7.4.100.0050.01116.41
7.4.90.0070.01116.43
7.4.80.0060.01019.39
7.4.70.0080.00816.32
7.4.60.0150.00316.32
7.4.50.0030.01016.48
7.4.40.0070.01016.30
7.4.30.0120.00916.29
7.4.00.0120.00314.89
7.3.330.0000.00513.12
7.3.320.0050.00013.24
7.3.310.0040.00416.15
7.3.300.0000.00716.03
7.3.290.0060.00816.12
7.3.280.0090.00916.13
7.3.270.0100.00717.40
7.3.260.0090.00916.36
7.3.250.0070.01016.41
7.3.240.0100.00616.08
7.3.230.0000.01716.12
7.3.210.0120.00416.29
7.3.200.0030.01516.43
7.3.190.0070.01116.21
7.3.180.0030.01416.58
7.3.170.0120.00916.34
7.3.160.0120.00916.07
7.3.10.0070.01016.65
7.3.00.0120.00316.38
7.2.330.0030.01316.55
7.2.320.0070.01416.60
7.2.310.0130.00316.65
7.2.300.0150.00616.40
7.2.290.0110.00616.41
7.2.130.0040.01116.81
7.2.120.0060.00916.54
7.2.110.0090.00616.79
7.2.100.0030.01016.55
7.2.90.0070.00416.63
7.2.80.0080.00316.36
7.2.70.0030.01016.72
7.2.60.0050.01016.73
7.2.50.0070.01116.61
7.2.40.0030.00616.70
7.2.30.0040.00816.78
7.2.20.0000.01516.65
7.2.10.0100.00616.71
7.2.00.0090.00617.95
7.1.250.0030.01015.73
7.1.240.0070.00715.66
7.1.230.0000.01015.45
7.1.220.0040.00715.82
7.1.210.0040.00715.82
7.1.200.0080.00315.76
7.1.190.0100.01015.71
7.1.180.0060.00615.34
7.1.170.0040.00415.64
7.1.160.0000.01315.73
7.1.150.0100.00615.63
7.1.140.0040.00415.59
7.1.130.0030.01015.79
7.1.120.0070.00415.64
7.1.110.0070.00715.91
7.1.100.0090.00416.84
7.1.90.0040.01215.60
7.1.80.0080.00815.52
7.1.70.0090.00816.42
7.1.60.0120.01325.33
7.1.50.0160.01325.13
7.1.40.0200.00824.94
7.1.30.0120.01425.13
7.1.20.0180.01125.07
7.1.10.0210.01015.29
7.1.00.0030.01116.16
7.0.330.0040.01115.17
7.0.320.0090.00615.18
7.0.310.0070.00715.51
7.0.300.0070.00715.42
7.0.290.0000.01315.31
7.0.280.0030.01015.19
7.0.270.0070.00715.41
7.0.260.0000.01315.25
7.0.250.0040.00415.15
7.0.240.0040.00915.19
7.0.230.0030.00715.43
7.0.220.0100.00315.07
7.0.210.0130.00315.46
7.0.200.0050.00915.84
7.0.190.0040.01315.99
7.0.180.0050.00915.73
7.0.170.0070.00515.72
7.0.160.0070.01015.84
7.0.150.0210.01114.79
7.0.140.0050.00915.67
7.0.130.0210.00515.13
7.0.120.0170.01014.98
7.0.110.0000.01415.68
7.0.100.0050.00715.64
7.0.90.0190.01014.71
7.0.80.0050.00815.87
7.0.70.0050.01015.78
7.0.60.0210.01214.60
7.0.50.0060.00915.75
7.0.40.0040.00914.69
7.0.30.0050.01114.77
7.0.20.0130.00514.85
7.0.10.0110.00714.84
7.0.00.0120.00414.84
5.6.380.0040.00414.55

preferences:
42.64 ms | 401 KiB | 5 Q