3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Foo {} class Bar {} var_dump(is_a('Bar', 'Bar', true));

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)
8.3.70.0160.00018.14
8.3.60.0130.00716.50
8.3.50.0160.00522.12
8.3.40.0110.00418.59
8.3.30.0070.00718.96
8.3.20.0070.00020.29
8.3.10.0000.00821.94
8.3.00.0060.00319.25
8.2.190.0070.00716.58
8.2.180.0140.00718.16
8.2.170.0040.01422.96
8.2.160.0070.00720.33
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00019.54
8.2.110.0090.00019.27
8.2.100.0060.00617.50
8.2.90.0040.00418.97
8.2.80.0040.00417.97
8.2.70.0090.00017.38
8.2.60.0060.00317.80
8.2.50.0000.00818.07
8.2.40.0050.00319.69
8.2.30.0050.00317.89
8.2.20.0040.00417.47
8.2.10.0040.00417.99
8.2.00.0000.00717.46
8.1.280.0150.00325.92
8.1.270.0080.00020.52
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.23
8.1.230.0080.00317.53
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0000.00820.18
8.1.160.0040.00421.91
8.1.150.0070.00018.77
8.1.140.0030.00517.33
8.1.130.0000.00717.75
8.1.120.0000.00717.29
8.1.110.0040.00417.36
8.1.100.0040.00317.24
8.1.90.0000.00817.30
8.1.80.0040.00417.34
8.1.70.0040.00417.31
8.1.60.0050.00317.34
8.1.50.0040.00417.40
8.1.40.0000.00717.31
8.1.30.0030.00617.57
8.1.20.0000.00717.42
8.1.10.0040.00417.35
8.1.00.0040.00417.28
8.0.300.0000.00718.77
8.0.290.0000.00716.58
8.0.280.0000.00818.33
8.0.270.0030.00317.06
8.0.260.0070.00017.05
8.0.250.0000.00716.84
8.0.240.0000.00616.85
8.0.230.0030.00316.83
8.0.220.0030.00316.76
8.0.210.0030.00316.66
8.0.200.0000.00716.71
8.0.190.0070.00016.83
8.0.180.0000.00716.68
8.0.170.0080.00016.87
8.0.160.0080.00016.78
8.0.150.0030.00316.77
8.0.140.0040.00416.62
8.0.130.0050.00013.26
8.0.120.0080.00016.63
8.0.110.0040.00416.58
8.0.100.0050.00216.63
8.0.90.0050.00216.61
8.0.80.0110.00716.82
8.0.70.0050.00316.63
8.0.60.0020.00516.64
8.0.50.0000.00816.66
8.0.30.0130.00616.82
8.0.20.0060.01217.40
8.0.10.0000.00716.84
8.0.00.0090.00916.57
7.4.330.0050.00015.03
7.4.320.0050.00316.24
7.4.300.0040.00416.43
7.4.290.0000.00716.47
7.4.280.0070.00016.44
7.4.270.0000.00716.33
7.4.260.0000.00716.25
7.4.250.0050.00316.40
7.4.240.0010.00616.46
7.4.230.0000.00716.50
7.4.220.0100.01316.54
7.4.210.0080.00916.46
7.4.200.0070.00016.50
7.4.160.0120.00416.34
7.4.150.0160.01017.40
7.4.140.0090.01117.86
7.4.130.0100.01016.42
7.4.120.0100.00716.34
7.4.110.0070.01316.30
7.4.100.0100.00716.47
7.4.90.0040.01316.28
7.4.80.0130.01019.39
7.4.70.0090.00616.33
7.4.60.0060.01016.23
7.4.50.0030.00616.52
7.4.40.0090.00916.29
7.4.30.0060.01216.14
7.4.00.0100.00314.94
7.3.330.0000.00512.95
7.3.320.0050.00913.10
7.3.310.0040.00416.06
7.3.300.0070.00016.18
7.3.290.0070.00016.04
7.3.280.0090.00616.16
7.3.270.0030.01317.40
7.3.260.0100.01016.36
7.3.250.0100.01216.31
7.3.240.0060.01216.42
7.3.230.0130.01016.39
7.3.210.0070.01016.43
7.3.200.0160.00319.39
7.3.190.0100.00616.13
7.3.180.0100.00716.14
7.3.170.0000.01616.27
7.3.160.0070.01116.13
7.2.330.0030.01416.30
7.2.320.0100.01016.46
7.2.310.0070.01416.47
7.2.300.0090.00816.53
7.2.290.0060.01516.39
7.2.80.0040.01116.41
7.2.60.0060.00916.53
7.2.00.0000.01319.07
7.1.200.0100.00315.60
7.1.100.0040.00818.09
7.1.70.0060.01016.86
7.1.60.0110.01419.50
7.1.50.0070.00716.50
7.1.00.0000.08022.54
7.0.200.0000.00916.76
7.0.140.0030.07322.10
7.0.60.0270.05020.02
7.0.50.0130.05317.88
7.0.40.0000.04720.04
7.0.30.0300.06320.15
7.0.20.0170.06020.12
7.0.10.0230.04320.22
7.0.00.0030.04720.24
5.6.280.0030.07320.99
5.6.210.0070.03720.64
5.6.200.0070.04018.18
5.6.190.0170.07720.45
5.6.180.0230.07020.36
5.6.170.0230.07720.57
5.6.160.0000.05720.57
5.6.150.0000.04718.29
5.6.140.0130.04018.15
5.6.130.0100.08018.19
5.6.120.0000.04721.14
5.6.110.0030.07021.08
5.6.100.0070.08320.97
5.6.90.0030.04020.88
5.6.80.0070.03720.33
5.5.350.0070.07020.42
5.5.340.0100.05018.03
5.5.330.0170.03320.22
5.5.320.0170.06720.21
5.5.310.0230.05020.37
5.5.300.0130.07718.08
5.5.290.0070.09017.96
5.5.280.0000.04720.90
5.5.270.0070.07720.96
5.5.260.0200.05720.93
5.5.250.0100.03320.68
5.5.240.0100.08020.25
5.4.450.0770.04719.45
5.4.440.1100.06719.55
5.4.430.0700.06319.58
5.4.420.0830.04719.19
5.4.410.1000.08019.06
5.4.400.0100.06318.76
5.4.390.0270.04018.56
5.4.380.0200.05018.49
5.4.370.0170.05018.57
5.4.360.0170.05318.70
5.4.350.0200.05318.55
5.4.340.0170.05318.70
5.4.320.0130.06018.43
5.4.310.0130.05318.78
5.4.300.0230.04718.74
5.4.290.0170.05018.55
5.4.280.0270.04318.41
5.4.270.0230.04718.57
5.4.260.0070.06318.48
5.4.250.0130.05718.71
5.4.240.0200.05018.78
5.4.230.0230.04718.74
5.4.220.0100.06018.69
5.4.210.0200.05318.79
5.4.200.0230.04316.64
5.4.190.0230.05318.47
5.4.180.0230.04718.78
5.4.170.0170.05318.70
5.4.160.0170.05318.66
5.4.150.0130.05718.52
5.4.140.0170.05016.22
5.4.130.0130.05716.35
5.4.120.0170.04716.25
5.4.110.0130.05016.27
5.4.100.0200.05716.29
5.4.90.0130.05316.24
5.4.80.0130.05316.25
5.4.70.0130.05316.22
5.4.60.0170.05316.27
5.4.50.0230.04316.26
5.4.40.0130.05316.24
5.4.30.0070.05716.21
5.4.20.0130.05316.21
5.4.10.0100.05316.13
5.4.00.0100.05315.66
5.3.290.0100.06014.75
5.3.280.0100.05714.56
5.3.270.0100.06014.62
5.3.260.0200.04714.80
5.3.250.0200.04714.74
5.3.240.0200.04714.69
5.3.230.0130.05314.63
5.3.220.0200.07014.63
5.3.210.0230.05014.65
5.3.200.0100.05314.65
5.3.190.0070.06314.54
5.3.180.0200.05714.59
5.3.170.0130.06014.74
5.3.160.0170.07314.63
5.3.150.0230.07014.57
5.3.140.0170.05314.75
5.3.130.0100.06014.53
5.3.120.0200.05014.52
5.3.110.0300.04714.74
5.3.100.0130.05314.10
5.3.90.0170.05014.02
5.3.80.0170.05014.04
5.3.70.0100.05714.01
5.3.60.0170.04714.11
5.3.50.0100.05314.04
5.3.40.0230.04314.09
5.3.30.0270.04313.88
5.3.20.0200.04713.69
5.3.10.0030.05713.84
5.3.00.0200.06013.71
5.2.170.0130.04311.17
5.2.160.0170.04011.35
5.2.150.0200.04011.22
5.2.140.0170.04311.23
5.2.130.0170.04011.14
5.2.120.0200.03711.14
5.2.110.0070.04711.30
5.2.100.0100.04311.09
5.2.90.0100.04711.19
5.2.80.0000.05711.14
5.2.70.0100.04711.17
5.2.60.0130.04011.14
5.2.50.0170.04311.20
5.2.40.0070.04311.06
5.2.30.0230.03011.07
5.2.20.0130.04011.12
5.2.10.0070.05010.95
5.2.00.0070.04710.88
5.1.60.0100.04010.00
5.1.50.0070.04710.00
5.1.40.0170.0439.99
5.1.30.0070.05710.40
5.1.20.0070.04310.40
5.1.10.0070.04010.23
5.1.00.0070.04010.16
5.0.50.0070.0308.55
5.0.40.0030.0308.50
5.0.30.0070.0438.27
5.0.20.0030.0308.20
5.0.10.0070.0278.18
5.0.00.0100.0478.25
4.4.90.0070.0205.89
4.4.80.0030.0235.91
4.4.70.0030.0235.88
4.4.60.0070.0235.88
4.4.50.0030.0235.90
4.4.40.0030.0405.92
4.4.30.0170.0135.82
4.4.20.0070.0205.93
4.4.10.0070.0205.88
4.4.00.0070.0335.90
4.3.110.0070.0205.81
4.3.100.0070.0205.81
4.3.90.0070.0235.89
4.3.80.0030.0375.78
4.3.70.0170.0105.88
4.3.60.0070.0205.80
4.3.50.0030.0235.79
4.3.40.0030.0375.88
4.3.30.0030.0274.89
4.3.20.0100.0174.89
4.3.10.0070.0204.89
4.3.00.0130.0276.79

preferences:
40.65 ms | 401 KiB | 5 Q