3v4l.org

run code in 300+ PHP versions simultaneously
<?php $function = new ReflectionFunction('class_exists'); print_r($function->getParameters());

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)
8.3.60.0070.00716.38
8.3.50.0120.00522.02
8.3.40.0070.01318.63
8.3.30.0100.01019.15
8.3.20.0110.00820.09
8.3.10.0040.00423.61
8.3.00.0080.00022.45
8.2.180.0070.01416.50
8.2.170.0040.01122.96
8.2.160.0100.00320.39
8.2.150.0080.00024.18
8.2.140.0150.00324.66
8.2.130.0040.00426.16
8.2.120.0000.00722.28
8.2.110.0040.00422.20
8.2.100.0080.00417.66
8.2.90.0060.00319.27
8.2.80.0000.00818.04
8.2.70.0000.01317.25
8.2.60.0080.00017.80
8.2.50.0060.00318.07
8.2.40.0000.00818.22
8.2.30.0040.00417.99
8.2.20.0050.00317.46
8.2.10.0040.00417.62
8.2.00.0000.00717.61
8.1.280.0030.01025.92
8.1.270.0110.00423.96
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00623.97
8.1.230.0040.00718.93
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0000.00817.30
8.1.180.0040.00418.10
8.1.170.0040.00418.44
8.1.160.0000.00721.82
8.1.150.0040.00418.48
8.1.140.0040.00417.39
8.1.130.0070.00017.87
8.1.120.0000.00717.29
8.1.110.0000.00717.27
8.1.100.0000.00717.45
8.1.90.0040.00417.45
8.1.80.0000.00717.34
8.1.70.0000.00717.38
8.1.60.0040.00417.48
8.1.50.0050.00317.41
8.1.40.0000.00817.44
8.1.30.0040.00417.59
8.1.20.0020.00517.53
8.1.10.0000.00817.56
8.1.00.0000.00717.29
8.0.300.0070.00018.77
8.0.290.0040.00416.90
8.0.280.0030.00318.46
8.0.270.0000.00717.09
8.0.260.0030.00316.74
8.0.250.0000.00616.80
8.0.240.0000.00716.88
8.0.230.0000.00816.88
8.0.220.0030.00316.75
8.0.210.0030.00316.83
8.0.200.0000.00616.90
8.0.190.0040.00416.82
8.0.180.0000.00816.83
8.0.170.0030.00516.84
8.0.160.0070.00016.82
8.0.150.0040.00416.65
8.0.140.0030.00616.77
8.0.130.0000.00513.23
8.0.120.0080.00016.70
8.0.110.0070.00016.71
8.0.100.0070.00016.69
8.0.90.0000.00716.87
8.0.80.0090.00616.88
8.0.70.0020.00516.71
8.0.60.0000.00716.84
8.0.50.0050.00316.75
8.0.30.0110.00816.98
8.0.20.0140.00517.40
8.0.10.0000.00816.90
8.0.00.0080.01216.71
7.4.330.0030.00315.09
7.4.320.0000.00716.51
7.4.300.0000.00616.52
7.4.290.0000.00616.52
7.4.280.0040.00416.50
7.4.270.0060.00016.44
7.4.260.0040.00416.46
7.4.250.0070.00016.50
7.4.240.0000.00716.33
7.4.230.0070.00016.43
7.4.220.0120.00616.50
7.4.210.0050.01116.47
7.4.200.0000.00716.34
7.4.190.0030.00316.45
7.4.160.0130.00616.26
7.4.150.0060.01117.40
7.4.140.0100.01217.86
7.4.130.0080.00816.37
7.4.120.0070.01016.54
7.4.110.0110.00716.43
7.4.100.0150.00316.40
7.4.90.0070.01016.38
7.4.80.0130.01019.39
7.4.70.0210.00316.43
7.4.60.0120.00616.38
7.4.50.0000.00616.52
7.4.40.0000.01222.77
7.4.30.0040.01216.45
7.4.00.0070.00714.90
7.3.330.0060.00012.98
7.3.320.0000.00512.96
7.3.310.0000.00716.29
7.3.300.0000.00716.02
7.3.290.0140.00616.12
7.3.280.0110.01016.13
7.3.270.0150.00717.40
7.3.260.0080.00816.09
7.3.250.0110.00716.27
7.3.240.0160.00416.18
7.3.230.0130.00316.39
7.3.210.0000.01716.41
7.3.200.0130.00719.39
7.3.190.0100.00716.24
7.3.180.0100.00716.46
7.3.170.0060.00916.34
7.3.160.0060.00916.09
7.3.120.0030.01314.73
7.3.10.0050.00516.14
7.3.00.0060.00916.38
7.2.330.0140.01016.65
7.2.320.0040.01316.37
7.2.310.0110.00716.31
7.2.300.0100.01316.29
7.2.290.0090.00616.25
7.2.130.0160.00016.54
7.2.120.0040.00716.45
7.2.110.0040.00616.47
7.2.100.0060.00616.21
7.2.90.0070.00316.62
7.2.80.0070.00316.48
7.2.70.0060.00616.53
7.2.60.0030.00916.37
7.2.50.0100.00716.34
7.2.40.0040.00416.49
7.2.30.0030.01016.05
7.2.20.0030.01016.14
7.2.10.0070.00716.33
7.2.00.0110.00617.92
7.1.250.0110.00415.57
7.1.100.0090.00017.87
7.1.70.0060.00317.10
7.1.60.0040.01516.86
7.1.50.0100.00316.78
7.1.40.0000.01216.50
7.1.30.0000.01216.36
7.1.20.0030.00916.60
7.1.10.0040.00416.47
7.1.00.0060.00616.45
7.0.200.0000.00916.30
7.0.190.0030.00716.69
7.0.180.0060.00315.96
7.0.170.0060.00315.89
7.0.160.0050.00516.24
7.0.150.0000.01116.05
7.0.140.0030.00616.31
7.0.130.0000.00816.23
7.0.120.0040.00416.48
7.0.110.0040.00416.21
7.0.100.0000.00716.14
7.0.90.0090.00016.45
7.0.80.0050.00316.30
7.0.70.0050.00316.28
7.0.60.0000.00716.13
7.0.50.0040.00416.16
7.0.40.0000.00815.65
7.0.30.0030.00715.65
7.0.20.0070.00415.65
7.0.10.0070.00315.65
7.0.00.0080.00315.65
5.6.300.0130.05120.91
5.6.290.0070.04820.84
5.6.280.0030.03920.75
5.6.270.0030.05220.99
5.6.260.0000.05120.79
5.6.250.0270.03720.74
5.6.240.0060.04220.96
5.6.230.0000.04520.75
5.6.220.0070.03720.77
5.6.210.0070.04220.89
5.6.200.0030.04620.61
5.6.190.0030.04120.69
5.6.180.0130.03220.70
5.6.170.0070.03620.73
5.6.160.0100.04420.75
5.6.150.0000.04820.75
5.6.140.0040.04620.87
5.6.130.0060.04720.63
5.6.120.0000.04920.70
5.6.110.0120.06720.62
5.6.100.0130.04020.93
5.6.90.0170.03120.74
5.6.80.0030.04920.02
5.6.70.0030.04720.13
5.6.60.0040.04920.22
5.6.50.0000.04120.27
5.6.40.0000.04220.11
5.6.30.0000.04620.12
5.6.20.0030.06020.01
5.6.10.0030.04320.06
5.6.00.0060.04120.07
5.5.380.0030.04617.43
5.5.370.0030.04117.40
5.5.360.0100.03317.39
5.5.350.0030.04217.36
5.5.340.0030.03818.00
5.5.330.0000.04617.93
5.5.320.0000.05018.00
5.5.310.0030.04617.99
5.5.300.0070.04117.99
5.5.290.0030.04817.96
5.5.280.0070.03717.65
5.5.270.0000.09318.03
5.5.260.0200.03917.79
5.5.250.0000.04317.73
5.5.240.0000.07717.34
5.5.230.0000.04917.37
5.5.220.0060.04417.38
5.5.210.0040.03917.29
5.5.200.0100.03217.29
5.5.190.0100.03217.15
5.5.180.0070.08517.39
5.5.160.0000.04317.00
5.5.150.0070.03317.26
5.5.140.0100.03617.38
5.5.130.0030.03717.31
5.5.120.0070.04517.14
5.5.110.0000.04317.35
5.5.100.0030.03717.05
5.5.90.0030.03817.25
5.5.80.0100.03317.13
5.5.70.0060.03917.03
5.5.60.0000.04017.22
5.5.50.0030.03917.09
5.5.40.0000.03917.20
5.5.30.0030.03717.04
5.5.20.0070.03617.04
5.5.10.0000.05917.27
5.5.00.0000.04417.11
5.4.450.0000.04919.28
5.4.440.0000.06219.08
5.4.430.0000.04519.15
5.4.420.0030.06519.27
5.4.410.0000.04119.07
5.4.400.0000.04018.79
5.4.390.0160.03818.93
5.4.380.0120.03018.89
5.4.370.0030.03518.96
5.4.360.0160.02618.82
5.4.350.0000.04418.96
5.4.340.0030.04018.88
5.4.320.0030.04218.78
5.4.310.0100.03518.82
5.4.300.0070.03618.96
5.4.290.0000.03819.07
5.4.280.0070.05318.79
5.4.270.0030.03918.75
5.4.260.0170.03418.93
5.4.250.0270.03619.05
5.4.240.0030.04118.79
5.4.230.0070.03718.94
5.4.220.0000.04519.05
5.4.210.0000.04418.79
5.4.200.0030.03918.87
5.4.190.0070.03618.85
5.4.180.0070.03318.78
5.4.170.0030.03619.08
5.4.160.0000.04118.79
5.4.150.0040.04218.77
5.4.140.0030.03516.69
5.4.130.0100.03016.41
5.4.120.0000.03916.54
5.4.110.0000.04516.49
5.4.100.0060.03216.32
5.4.90.0070.03016.50
5.4.80.0000.03916.32
5.4.70.0030.03716.49
5.4.60.0030.03416.49
5.4.50.0070.03316.52
5.4.40.0030.03816.66
5.4.30.0000.03816.30
5.4.20.0000.03616.48
5.4.10.0070.04616.24
5.4.00.0260.02915.92
5.3.290.0000.04415.65
5.3.280.0000.04515.65
5.3.270.0070.03715.65
5.3.260.0000.04015.65
5.3.250.0030.03415.65
5.3.240.0000.04615.65
5.3.230.0030.03615.65
5.3.220.0030.03515.65
5.3.210.0030.03615.65
5.3.200.0040.04215.65
5.3.190.0000.04115.65
5.3.180.0000.04315.65
5.3.170.0070.03615.65
5.3.160.0000.03815.65
5.3.150.0000.04015.65
5.3.140.0070.06015.65
5.3.130.0070.03415.65
5.3.120.0030.05715.65
5.3.110.0030.03915.65
5.3.100.0100.03415.65
5.3.90.0000.04115.65
5.3.80.0030.03915.65
5.3.70.0100.03015.65
5.3.60.0060.03215.65
5.3.50.0000.03815.65
5.3.40.0000.03715.65
5.3.30.0030.03415.65
5.3.20.0030.03315.65
5.3.10.0000.03715.65
5.3.00.0070.03315.65
5.2.170.0070.02715.65
5.2.160.0030.02715.65
5.2.150.0000.03015.65
5.2.140.0030.07515.65
5.2.130.0070.05415.65
5.2.120.0000.04515.65
5.2.110.0030.02715.65
5.2.100.0070.04615.65
5.2.90.0000.02915.65
5.2.80.0030.02915.65
5.2.70.0040.03215.65
5.2.60.0030.02915.65
5.2.50.0290.03315.65
5.2.40.0030.02815.65
5.2.30.0000.03415.65
5.2.20.0000.03015.65
5.2.10.0030.02815.65
5.2.00.0060.02615.65
5.1.60.0070.02115.65
5.1.50.0030.02515.65
5.1.40.0040.02515.65
5.1.30.0030.02415.65
5.1.20.0000.02915.65
5.1.10.0000.02615.65
5.1.00.0000.03015.65
5.0.50.0030.01915.65
5.0.40.0000.02115.65
5.0.30.0030.02815.65
5.0.20.0000.02215.65
5.0.10.0000.02315.65
5.0.00.0030.03015.65
4.4.90.0060.01215.65
4.4.80.0000.01815.65
4.4.70.0000.01715.65
4.4.60.0000.01715.65
4.4.50.0130.01315.65
4.4.40.0000.02515.65
4.4.30.0030.01615.65
4.4.20.0000.01615.65
4.4.10.0070.01715.65
4.4.00.0030.02415.65
4.3.110.0000.01615.65
4.3.100.0000.01815.65
4.3.90.0000.02015.65
4.3.80.0060.01915.65
4.3.70.0030.01315.65
4.3.60.0000.02315.65
4.3.50.0030.01515.65
4.3.40.0000.03315.65
4.3.30.0000.01615.65
4.3.20.0000.01715.65
4.3.10.0030.01615.65
4.3.00.0000.03015.65

preferences:
39.2 ms | 401 KiB | 5 Q