3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B {} interface A {} var_dump(class_exists('B', false)); var_dump(class_exists('A', false));

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)
8.3.40.0070.00718.59
8.3.30.0070.00718.90
8.3.20.0000.00720.05
8.3.10.0040.00423.48
8.3.00.0030.00617.67
8.2.170.0070.00722.96
8.2.160.0030.01020.23
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00020.73
8.2.110.0090.00921.00
8.2.100.0080.00317.78
8.2.90.0050.00319.15
8.2.80.0030.00517.97
8.2.70.0030.00517.50
8.2.60.0030.00617.80
8.2.50.0030.00618.10
8.2.40.0000.00717.91
8.2.30.0040.00417.99
8.2.20.0040.00417.42
8.2.10.0020.00517.93
8.2.00.0050.00317.55
8.1.270.0050.00323.88
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0090.00023.91
8.1.230.0100.00017.77
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0060.00317.10
8.1.180.0040.00418.10
8.1.170.0030.00518.40
8.1.160.0000.00721.90
8.1.150.0040.00418.70
8.1.140.0080.00017.19
8.1.130.0070.00017.25
8.1.120.0030.00317.30
8.1.110.0030.00617.19
8.1.100.0000.00717.36
8.1.90.0020.00517.21
8.1.80.0060.00317.32
8.1.70.0000.00817.32
8.1.60.0040.00417.45
8.1.50.0030.00617.45
8.1.40.0000.00817.38
8.1.30.0050.00317.45
8.1.20.0040.00417.41
8.1.10.0040.00417.42
8.1.00.0050.00217.33
8.0.300.0040.00418.77
8.0.290.0000.00716.58
8.0.280.0000.00718.30
8.0.270.0000.00717.16
8.0.260.0080.00016.69
8.0.250.0020.00516.87
8.0.240.0000.00716.79
8.0.230.0000.00716.80
8.0.220.0030.00316.76
8.0.210.0030.00316.66
8.0.200.0060.00316.81
8.0.190.0040.00416.80
8.0.180.0040.00416.79
8.0.170.0030.00616.69
8.0.160.0030.00316.64
8.0.150.0000.01016.65
8.0.140.0000.00816.64
8.0.130.0050.00313.20
8.0.120.0000.00716.68
8.0.110.0000.00816.73
8.0.100.0000.00716.70
8.0.90.0000.00716.79
8.0.80.0120.00316.77
8.0.70.0000.00716.59
8.0.60.0000.00716.66
8.0.50.0040.00416.61
8.0.30.0120.00816.91
8.0.20.0170.00517.40
8.0.10.0040.00416.89
8.0.00.0120.00516.55
7.4.330.0020.00215.00
7.4.320.0060.00016.40
7.4.300.0000.00716.34
7.4.290.0040.00416.39
7.4.280.0040.00416.40
7.4.270.0030.00316.36
7.4.260.0070.00016.37
7.4.250.0070.00016.43
7.4.240.0030.00416.40
7.4.230.0030.00316.21
7.4.220.0000.01516.38
7.4.210.0000.01416.48
7.4.200.0040.00416.36
7.4.160.0140.00416.41
7.4.150.0090.00917.40
7.4.140.0070.01017.86
7.4.130.0060.01216.37
7.4.120.0050.01116.31
7.4.110.0070.01016.55
7.4.100.0090.00916.31
7.4.90.0080.00816.38
7.4.80.0140.00819.39
7.4.70.0090.00916.42
7.4.60.0140.00316.39
7.4.50.0020.00216.29
7.4.40.0060.01216.23
7.4.30.0030.01216.45
7.4.00.0030.01014.72
7.3.330.0030.00313.10
7.3.320.0000.00513.04
7.3.310.0040.00416.13
7.3.300.0030.00316.03
7.3.290.0070.01016.18
7.3.280.0070.01116.17
7.3.270.0060.01317.40
7.3.260.0000.01616.38
7.3.250.0120.00516.15
7.3.240.0080.00916.44
7.3.230.0080.00916.39
7.3.210.0080.01216.25
7.3.200.0080.00816.19
7.3.190.0100.00716.18
7.3.180.0090.00616.47
7.3.170.0130.00316.27
7.3.160.0080.00816.13
7.3.120.0030.01314.70
7.3.00.0030.01016.12
7.2.330.0070.01116.24
7.2.320.0120.00616.60
7.2.310.0060.01716.57
7.2.300.0110.00616.21
7.2.290.0060.00916.54
7.2.130.0000.01316.48
7.2.120.0090.00616.50
7.2.110.0070.00716.39
7.2.100.0140.00016.35
7.2.90.0080.01116.55
7.2.80.0000.01416.36
7.2.70.0030.01416.68
7.2.60.0060.01016.50
7.2.50.0060.00916.79
7.2.40.0030.01216.47
7.2.30.0110.00316.42
7.2.20.0070.00316.45
7.2.10.0150.00016.63
7.2.00.0040.00717.95
7.1.250.0110.00015.61
7.1.240.0070.00315.58
7.1.230.0060.00615.66
7.1.220.0030.00615.63
7.1.210.0100.00615.35
7.1.200.0030.00915.27
7.1.190.0030.01015.73
7.1.180.0070.00415.46
7.1.170.0030.00715.64
7.1.160.0000.00815.40
7.1.150.0100.00015.42
7.1.140.0040.00815.78
7.1.130.0060.00615.56
7.1.120.0060.00915.45
7.1.110.0000.00915.68
7.1.100.0030.00916.90
7.1.90.0080.00315.63
7.1.80.0000.01215.34
7.1.70.0000.00916.14
7.1.60.0060.01017.33
7.1.50.0180.00824.96
7.1.40.0110.00315.52
7.1.30.0100.00315.29
7.1.20.0070.00415.38
7.1.10.0000.00715.70
7.1.00.0070.04018.90
7.0.330.0030.00715.21
7.0.320.0000.01815.32
7.0.310.0090.00615.03
7.0.300.0090.00315.09
7.0.290.0070.00614.84
7.0.280.0070.00315.00
7.0.270.0100.00315.36
7.0.260.0000.00715.17
7.0.250.0040.00815.34
7.0.240.0100.00015.28
7.0.230.0040.00415.16
7.0.220.0000.01015.29
7.0.210.0030.00715.11
7.0.200.0050.00515.96
7.0.190.0000.01315.38
7.0.180.0040.00715.07
7.0.170.0070.00314.90
7.0.160.0070.00315.08
7.0.150.0090.00315.02
7.0.140.0030.04118.58
7.0.130.0040.00815.13
7.0.120.0000.00815.09
7.0.110.0030.01015.17
7.0.100.0070.00315.17
7.0.90.0090.00015.06
7.0.80.0030.01015.17
7.0.70.0060.00614.89
7.0.60.0050.04617.29
7.0.50.0030.02616.45
7.0.40.0090.04116.50
7.0.30.0150.03016.70
7.0.20.0130.03016.57
7.0.10.0130.02816.57
7.0.00.0030.04516.49
5.6.380.0090.00314.09
5.6.370.0060.00613.81
5.6.360.0110.00314.31
5.6.350.0110.00414.21
5.6.340.0060.00613.70
5.6.330.0000.00814.48
5.6.320.0000.01314.33
5.6.310.0090.00014.07
5.6.300.0060.00914.07
5.6.290.0000.01114.13
5.6.280.0020.04117.59
5.6.270.0030.00614.08
5.6.260.0030.01013.89
5.6.250.0110.00014.20
5.6.240.0090.00413.93
5.6.230.0070.00713.58
5.6.220.0060.00614.11
5.6.210.0070.02217.26
5.6.200.0120.03316.05
5.6.190.0080.04817.24
5.6.180.1600.02217.35
5.6.170.0080.04617.16
5.6.160.0060.02217.33
5.6.150.0050.04716.26
5.6.140.0110.03916.15
5.6.130.0070.02216.14
5.6.120.0050.02317.60
5.6.110.0100.04117.44
5.6.100.0080.02217.54
5.6.90.0090.02017.49
5.6.80.0080.03017.15
5.6.70.2250.02417.16
5.6.60.0090.00613.97
5.6.50.0040.00813.87
5.6.40.0090.00613.88
5.6.30.0000.01313.63
5.6.20.0040.00414.05
5.6.10.0050.00513.70
5.6.00.0060.00614.04
5.5.380.0030.00310.83
5.5.370.0050.00510.46
5.5.360.0030.00910.93
5.5.350.0200.03515.59
5.5.340.0030.02214.45
5.5.330.0150.03815.60
5.5.320.0270.02015.55
5.5.310.0120.03215.75
5.5.300.0060.04014.38
5.5.290.0070.02014.37
5.5.280.0020.03315.62
5.5.270.0070.04415.82
5.5.260.0120.03215.81
5.5.250.0090.04215.73
5.5.240.0020.04115.48
5.5.230.0030.00510.66
5.5.220.0080.00510.75
5.5.210.0030.00311.04
5.5.200.0000.00710.64
5.5.190.0070.00410.71
5.5.180.0060.00010.96
5.5.170.0060.00310.91
5.5.160.0090.00310.52
5.5.150.0070.00010.41
5.5.140.0000.00810.80
5.5.130.0080.00410.94
5.5.120.0030.00910.59
5.5.110.0000.01110.99
5.5.100.0030.00710.60
5.5.90.0090.00310.82
5.5.80.0030.00510.39
5.5.70.0060.00610.85
5.5.60.0030.00710.92
5.5.50.0070.00310.98
5.5.40.0000.00610.39
5.5.30.0060.00611.02
5.5.20.0000.00810.42
5.5.10.0030.00310.92
5.5.00.0000.00910.70
5.4.450.0330.02115.14
5.4.440.0330.03715.04
5.4.430.0080.02815.19
5.4.420.0150.03514.97
5.4.410.0010.03515.16
5.4.400.0130.02215.02
5.4.390.0050.03214.87
5.4.380.0150.02314.80
5.4.370.0080.01814.84
5.4.360.0020.02614.73
5.4.350.0030.02511.46
5.4.340.0050.02211.42
5.4.330.0040.00810.70
5.4.320.0050.02011.48
5.4.310.0040.02711.65
5.4.300.0060.02711.60
5.4.290.0070.02211.63
5.4.280.0070.02411.51
5.4.270.0050.01911.57
5.4.260.0070.01911.66
5.4.250.0030.02411.71
5.4.240.0050.02111.46
5.4.230.0060.01911.56
5.4.220.0030.02011.75
5.4.210.0020.02211.54
5.4.200.0050.02211.65
5.4.190.0030.02111.59
5.4.180.0050.02011.61
5.4.170.0070.01711.59
5.4.160.0090.01711.59
5.4.150.0040.02111.59
5.4.140.0030.02211.36
5.4.130.0040.02111.34
5.4.120.0040.02011.44
5.4.110.0060.02011.41
5.4.100.0060.02111.46
5.4.90.0040.02511.28
5.4.80.0040.02911.48
5.4.70.0030.01911.46
5.4.60.0030.02111.26
5.4.50.0050.02211.23
5.4.40.0050.01811.38
5.4.30.0050.02311.35
5.4.20.0070.01911.23
5.4.10.0020.02311.46
5.4.00.0060.02011.16
5.3.290.0030.02311.66
5.3.280.0080.01911.54
5.3.270.0040.02711.62
5.3.260.0060.02311.59
5.3.250.0030.02411.59
5.3.240.0020.02311.51
5.3.230.0030.02411.47
5.3.220.0030.02211.52
5.3.210.0020.02411.40
5.3.200.0070.01811.40
5.3.190.0070.01811.55
5.3.180.0060.02311.60
5.3.170.0040.02211.49
5.3.160.0050.02211.63
5.3.150.0020.02511.49
5.3.140.0030.02211.59
5.3.130.0020.03011.59
5.3.120.0050.02511.48
5.3.110.0050.02211.59
5.3.100.0010.02711.36
5.3.90.0030.02411.26
5.3.80.0070.01711.18
5.3.70.0060.02211.25
5.3.60.0040.02211.26
5.3.50.0020.02411.07
5.3.40.0020.02211.19
5.3.30.0050.02011.09
5.3.20.0080.01610.99
5.3.10.0040.02010.93
5.3.00.0080.01810.95
5.2.170.0050.0179.33
5.2.160.0020.0189.34
5.2.150.0040.0179.34
5.2.140.0040.0179.34
5.2.130.0060.0149.27
5.2.120.0020.0179.30
5.2.110.0090.0139.26
5.2.100.0040.0159.27
5.2.90.0060.0149.23
5.2.80.0020.0199.20
5.2.70.0060.0159.10
5.2.60.0060.0159.21
5.2.50.0030.0209.19
5.2.40.0040.0169.19
5.2.30.0040.0189.10
5.2.20.0030.0189.12
5.2.10.0010.0198.98
5.2.00.0010.0198.82
5.1.60.0040.0148.25
5.1.50.0030.0158.23
5.1.40.0050.0138.27
5.1.30.0020.0168.52
5.1.20.0040.0158.52
5.1.10.0040.0148.24
5.1.00.0060.0128.24
5.0.50.0050.0107.48
5.0.40.0020.0137.41
5.0.30.0060.0147.32
5.0.20.0040.0107.30
5.0.10.0050.0107.29
5.0.00.0030.0157.28
4.4.90.0010.0106.55
4.4.80.0030.0076.54
4.4.70.0010.0116.54
4.4.60.0020.0096.54
4.4.50.0020.0106.55
4.4.40.0020.0156.52
4.4.30.0020.0106.54
4.4.20.0040.0096.59
4.4.10.0010.0126.59
4.4.00.0030.0136.54
4.3.110.0010.0106.50
4.3.100.0010.0096.50
4.3.90.0010.0106.48
4.3.80.0020.0146.46
4.3.70.0030.0086.48
4.3.60.0040.0096.48
4.3.50.0030.0086.48
4.3.40.0030.0146.43
4.3.30.0030.0095.81
4.3.20.0020.0105.80
4.3.10.0010.0125.78
4.3.00.0110.00711.79

preferences:
41.98 ms | 400 KiB | 5 Q