3v4l.org

run code in 300+ PHP versions simultaneously
<?php class BaseClass { } class MyClass extends BaseClass{ } $object = new MyClass(); echo is_subclass_of('BaseClass', 'BaseClass')? 'Yes<br />':'No<br />'; echo is_subclass_of('MyClass', 'BaseClass')? 'Yes<br />':'No<br />'; echo is_subclass_of('myclass', 'baseclass')? 'Yes<br />':'No<br />'; echo is_subclass_of('myClass', 'baseclass', false)? 'Yes<br />':'No<br />'; echo is_subclass_of($object, 'baseclass', false)? 'Yes<br />':'No<br />'; echo is_subclass_of($object, 'BaseClass')? 'Yes<br />':'No<br />';

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)
8.3.40.0170.00318.79
8.3.30.0130.00618.72
8.3.20.0040.00418.43
8.3.10.0040.00420.79
8.3.00.0040.00423.48
8.2.170.0120.00322.96
8.2.160.0030.01020.47
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.96
8.2.110.0040.00420.52
8.2.100.0040.00817.84
8.2.90.0030.00619.09
8.2.80.0070.00017.97
8.2.70.0090.00017.63
8.2.60.0060.00317.91
8.2.50.0030.00518.07
8.2.40.0000.00818.16
8.2.30.0000.00821.22
8.2.20.0040.00417.53
8.2.10.0040.00417.61
8.2.00.0000.00717.49
8.1.270.0000.00823.99
8.1.260.0180.00426.35
8.1.250.0000.00728.09
8.1.240.0050.00522.55
8.1.230.0070.00420.89
8.1.220.0090.00018.77
8.1.210.0000.00818.91
8.1.200.0060.00317.23
8.1.190.0030.00517.39
8.1.180.0030.00618.10
8.1.170.0040.00418.53
8.1.160.0080.00018.86
8.1.150.0050.00318.58
8.1.140.0030.00517.44
8.1.130.0000.00717.79
8.1.120.0000.00817.34
8.1.110.0040.00417.31
8.1.100.0030.00417.32
8.1.90.0070.00017.30
8.1.80.0040.00417.40
8.1.70.0000.00717.35
8.1.60.0050.00517.57
8.1.50.0000.00717.39
8.1.40.0030.00617.36
8.1.30.0040.00417.60
8.1.20.0040.00417.54
8.1.10.0030.00617.61
8.1.00.0030.00717.51
8.0.300.0000.00720.02
8.0.290.0050.00217.30
8.0.280.0000.00718.45
8.0.270.0000.00917.19
8.0.260.0030.00316.92
8.0.250.0070.00016.92
8.0.240.0030.00616.85
8.0.230.0030.00716.89
8.0.220.0030.00316.89
8.0.210.0000.00716.88
8.0.200.0000.00716.93
8.0.190.0000.00716.84
8.0.180.0000.00716.84
8.0.170.0040.00416.92
8.0.160.0000.00716.79
8.0.150.0050.00216.84
8.0.140.0050.00316.82
8.0.130.0060.00013.25
8.0.120.0040.00416.83
8.0.110.0070.00016.87
8.0.100.0070.00016.80
8.0.90.0080.00016.72
8.0.80.0090.00616.89
8.0.70.0000.00716.66
8.0.60.0040.00416.80
8.0.50.0000.00716.71
8.0.30.0150.00417.06
8.0.20.0080.01117.40
8.0.10.0000.00716.81
8.0.00.0100.00616.67
7.4.330.0020.00214.63
7.4.320.0060.00316.54
7.4.300.0000.00616.49
7.4.290.0070.00016.39
7.4.280.0030.00316.43
7.4.270.0060.00016.46
7.4.260.0060.00013.27
7.4.250.0080.00016.51
7.4.240.0000.00716.59
7.4.230.0000.00716.29
7.4.220.0090.01216.45
7.4.210.0050.00816.53
7.4.200.0030.00316.43
7.4.190.0040.00416.59
7.4.160.0100.00716.48
7.4.150.0000.01717.40
7.4.140.0080.01017.86
7.4.130.0070.01016.53
7.4.120.0110.00716.30
7.4.110.0080.01216.36
7.4.100.0120.00916.34
7.4.90.0100.01016.36
7.4.80.0100.00719.39
7.4.70.0030.01316.47
7.4.60.0130.00316.54
7.4.50.0030.00616.25
7.4.40.0030.00922.77
7.4.30.0100.00616.36
7.4.00.0070.01014.76
7.3.330.0050.00013.18
7.3.320.0030.00312.99
7.3.310.0030.00316.14
7.3.300.0000.00616.04
7.3.290.0030.01416.09
7.3.280.0110.00616.20
7.3.270.0070.01017.40
7.3.260.0100.00818.24
7.3.250.0100.01016.38
7.3.240.0060.01016.45
7.3.230.0100.00616.50
7.3.210.0160.00316.27
7.3.200.0130.01019.39
7.3.190.0090.01316.23
7.3.180.0060.01016.33
7.3.170.0120.00316.40
7.3.160.0060.01116.18
7.3.120.0120.00314.76
7.2.330.0100.00716.57
7.2.320.0100.01016.59
7.2.310.0090.00916.35
7.2.300.0070.01016.44
7.2.290.0070.01016.58
7.2.00.0030.01319.36
7.1.100.0070.00317.70
7.1.70.0000.00717.22
7.1.60.0100.01419.40
7.1.50.0070.01816.54
7.1.00.0070.03022.35
7.0.200.0030.00716.80
7.0.140.0070.07021.93
7.0.70.0070.03719.88
7.0.60.0030.05319.93
7.0.50.0030.04320.25
7.0.40.0030.04320.10
7.0.30.0070.09020.11
7.0.20.0100.06320.18
7.0.10.0130.07019.95
7.0.00.0030.05720.14
5.6.280.0070.07021.15
5.6.220.0030.04020.52
5.6.210.0000.04720.68
5.6.200.0070.04021.04
5.6.190.0130.03320.93
5.6.180.0170.07721.03
5.6.170.0100.08721.02
5.6.160.0130.07021.00
5.6.150.0030.09021.04
5.6.140.0000.08021.02
5.6.130.0070.08720.91
5.6.120.0170.08021.17
5.6.110.0130.08021.02
5.6.100.0000.05020.98
5.6.90.0130.05020.93
5.6.80.0000.09020.50
5.6.70.0100.08020.54
5.6.60.0130.07320.43
5.6.50.0100.05720.46
5.6.40.0070.07720.41
5.6.30.0070.05020.40
5.6.20.0030.07020.30
5.6.10.0070.08720.49
5.6.00.0100.07320.39
5.5.360.0070.03720.39
5.5.350.0000.04320.41
5.5.340.0070.04020.64
5.5.330.0000.04320.91
5.5.320.0070.08320.80
5.5.310.0130.07720.90
5.5.300.0030.08320.77
5.5.290.0070.05020.92
5.5.280.0100.05720.90
5.5.270.0100.06720.73
5.5.260.0070.07020.79
5.5.250.0070.07720.56
5.5.240.0030.08020.21
5.5.230.0030.08320.19
5.5.220.0070.08020.13
5.5.210.0100.08320.18
5.5.200.0130.05720.21
5.5.190.0100.06320.21
5.5.180.0070.05020.13
5.5.160.0100.08020.11
5.5.150.0030.06320.11
5.5.140.0170.07720.09
5.5.130.0070.07320.10
5.5.120.0030.06320.18
5.5.110.0070.06720.21
5.5.100.0030.06020.15
5.5.90.0130.07320.04
5.5.80.0100.08020.06
5.5.70.0030.08020.05
5.5.60.0030.06720.15
5.5.50.0130.06320.07
5.5.40.0100.04720.07
5.5.30.0100.07320.05
5.5.20.0070.07720.13
5.5.10.0070.08020.06
5.5.00.0070.07719.96
5.4.450.0070.06019.42
5.4.440.0130.07319.36
5.4.430.0100.03719.20
5.4.420.0100.04319.57
5.4.410.0070.07719.35
5.4.400.0070.07718.88
5.4.390.0070.08019.03
5.4.380.0230.05719.11
5.4.370.0030.08019.12
5.4.360.0030.08019.03
5.4.350.0070.06319.04
5.4.340.0070.07719.14
5.4.320.0070.06019.04
5.4.310.0070.05018.90
5.4.300.0130.08019.04
5.4.290.0200.06719.14
5.4.280.0070.07719.20
5.4.270.0100.08019.21
5.4.260.0100.07718.89
5.4.250.0130.07018.84
5.4.240.0030.07319.13
5.4.230.0100.07019.08
5.4.220.0130.07319.11
5.4.210.0100.06718.90
5.4.200.0030.04319.13
5.4.190.0070.06019.08
5.4.180.0030.08319.03
5.4.170.0030.08019.13
5.4.160.0000.05719.10
5.4.150.0070.08019.14
5.4.140.0030.07716.51
5.4.130.0030.05016.39
5.4.120.0030.07716.54
5.4.110.0100.07016.47
5.4.100.0000.05316.52
5.4.90.0030.06716.44
5.4.80.0070.04716.46
5.4.70.0070.07016.47
5.4.60.0100.07016.32
5.4.50.0130.04016.36
5.4.40.0030.08016.38
5.4.30.0100.06716.36
5.4.20.0130.06716.26
5.4.10.0070.07716.39
5.4.00.0000.08015.86
5.3.290.0070.05314.61
5.3.280.0030.08014.68
5.3.270.0030.05014.69
5.3.260.0070.08314.50
5.3.250.0000.05714.71
5.3.240.0100.06314.53
5.3.230.0070.07014.56
5.3.220.0100.07714.58
5.3.210.0070.07714.58
5.3.200.0100.07714.63
5.3.190.0170.06314.62
5.3.180.0030.05714.49
5.3.170.0070.07714.55
5.3.160.0070.07014.64
5.3.150.0030.06314.51
5.3.140.0030.07314.61
5.3.130.0130.07314.47
5.3.120.0130.07014.57
5.3.110.0070.06714.53
5.3.100.0100.05714.06
5.3.90.0070.07314.00
5.3.80.0030.07713.91
5.3.70.0130.07014.10
5.3.60.0070.08014.09
5.3.50.0100.05314.08
5.3.40.0070.04313.93
5.3.30.0070.04714.04
5.3.20.0000.04313.69
5.3.10.0070.07313.63
5.3.00.0100.06313.77
5.2.170.0030.04311.38
5.2.160.0000.03711.38
5.2.150.0030.06711.38
5.2.140.0100.02311.38
5.2.130.0000.03011.38
5.2.120.0030.06711.38
5.2.110.0100.04311.38
5.2.100.0100.06011.38
5.2.90.0100.04311.38
5.2.80.0000.03311.38
5.2.70.0000.07011.38
5.2.60.0070.04311.38
5.2.50.0070.04311.38
5.2.40.0070.04311.38
5.2.30.0070.06311.38
5.2.20.0000.05311.38
5.2.10.0030.03011.38
5.2.00.0000.03011.38
5.1.60.0030.05311.38
5.1.50.0070.05011.38
5.1.40.0030.05311.38
5.1.30.0000.06311.38
5.1.20.0000.06011.38
5.1.10.0030.05311.38
5.1.00.0100.04011.38
5.0.50.0030.04711.38
5.0.40.0000.05011.38
5.0.30.0070.06011.38
5.0.20.0070.04011.38
5.0.10.0030.04311.38
5.0.00.0000.06711.38
4.4.90.0070.03311.38
4.4.80.0030.03711.38
4.4.70.0000.03011.38
4.4.60.0070.03311.38
4.4.50.0030.03311.38
4.4.40.0000.04711.38
4.4.30.0070.03311.38
4.4.20.0030.03711.38
4.4.10.0030.01711.38
4.4.00.0070.05011.38
4.3.110.0030.03311.38
4.3.100.0000.03711.38
4.3.90.0030.03711.38
4.3.80.0000.04311.38
4.3.70.0030.03311.38
4.3.60.0000.03011.38
4.3.50.0000.02711.38
4.3.40.0070.04711.38
4.3.30.0030.03311.38
4.3.20.0000.03711.38
4.3.10.0000.03711.38
4.3.00.0030.03011.38

preferences:
66.78 ms | 400 KiB | 5 Q