3v4l.org

run code in 300+ PHP versions simultaneously
<?php function variations($length, $chars) { $unique_chars = count_chars($chars, 3); if ($length <= 0 || $unique_chars <= 0) return 0; $additional = ($length > 1) ? variations($length - 1, $chars) : 0; return pow($unique_chars, $length) + $additional; } echo variations(10, 26);

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)
8.3.60.0060.00916.50
8.3.50.0160.00721.93
8.3.40.0120.00318.73
8.3.30.0100.00318.83
8.3.20.0130.00320.21
8.3.10.0080.00023.66
8.3.00.0090.00019.26
8.2.180.0080.00818.43
8.2.170.0070.00722.96
8.2.160.0040.01120.34
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00926.16
8.2.120.0020.00521.93
8.2.110.0090.00022.15
8.2.100.0040.00817.72
8.2.90.0030.00619.26
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0040.00418.03
8.2.50.0050.00318.07
8.2.40.0030.00619.88
8.2.30.0060.00319.83
8.2.20.0030.00617.67
8.2.10.0040.00417.96
8.2.00.0050.00517.68
8.1.280.0100.01025.92
8.1.270.0060.00323.91
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0060.00323.83
8.1.230.0070.00419.10
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0100.00017.22
8.1.190.0000.01217.00
8.1.180.0030.00618.10
8.1.170.0060.00318.65
8.1.160.0070.00022.00
8.1.150.0090.00018.59
8.1.140.0040.00417.37
8.1.130.0000.00717.80
8.1.120.0040.00417.45
8.1.110.0000.00717.33
8.1.100.0050.00217.31
8.1.90.0050.00217.45
8.1.80.0030.00517.35
8.1.70.0000.00817.31
8.1.60.0090.00017.54
8.1.50.0040.00417.40
8.1.40.0040.00417.36
8.1.30.0030.00517.59
8.1.20.0040.00417.57
8.1.10.0000.00717.49
8.1.00.0000.00717.50
8.0.300.0000.00720.73
8.0.290.0030.00617.04
8.0.280.0030.00318.46
8.0.270.0070.00017.23
8.0.260.0040.00418.39
8.0.250.0030.00316.91
8.0.240.0040.00416.94
8.0.230.0070.00016.93
8.0.220.0000.00716.88
8.0.210.0000.00616.91
8.0.200.0030.00316.84
8.0.190.0040.00416.81
8.0.180.0070.00016.89
8.0.170.0040.00416.91
8.0.160.0070.00016.92
8.0.150.0100.00016.80
8.0.140.0000.00716.87
8.0.130.0050.00013.32
8.0.120.0040.00416.78
8.0.110.0040.00416.86
8.0.100.0070.00016.67
8.0.90.0050.00216.75
8.0.80.0060.00916.85
8.0.70.0000.00716.88
8.0.60.0000.00716.91
8.0.50.0070.00016.84
8.0.30.0120.00616.94
8.0.20.0100.00817.40
8.0.10.0050.00216.89
8.0.00.0120.00716.74
7.4.330.0070.00015.00
7.4.320.0030.00316.59
7.4.300.0000.00616.50
7.4.290.0000.00716.59
7.4.280.0040.00416.53
7.4.270.0030.00316.49
7.4.260.0070.00016.59
7.4.250.0000.00816.55
7.4.240.0050.00216.62
7.4.230.0000.00716.43
7.4.220.0030.01416.53
7.4.210.0050.01116.46
7.4.200.0030.00516.38
7.4.190.0070.00016.43
7.4.160.0070.01016.48
7.4.150.0120.00617.40
7.4.140.0080.00817.86
7.4.130.0100.00816.67
7.4.120.0080.00916.49
7.4.110.0070.01116.34
7.4.100.0180.00416.39
7.4.90.0180.00016.38
7.4.80.0160.00319.39
7.4.70.0120.00316.36
7.4.60.0070.01016.41
7.4.50.0030.00516.60
7.4.40.0080.01016.48
7.4.30.0090.00616.35
7.4.00.0030.01014.94
7.3.330.0060.00013.25
7.3.320.0070.00013.05
7.3.310.0000.00716.29
7.3.300.0050.00216.20
7.3.290.0070.00716.34
7.3.280.0110.00916.29
7.3.270.0170.00717.40
7.3.260.0120.00616.36
7.3.250.0120.00916.34
7.3.240.0070.01016.46
7.3.230.0100.00716.39
7.3.210.0080.01216.49
7.3.200.0060.01019.39
7.3.190.0060.01616.52
7.3.180.0090.00616.66
7.3.170.0180.00316.27
7.3.160.0050.01016.35
7.3.120.0110.00414.80
7.3.10.0120.00516.66
7.3.00.0090.00416.50
7.2.330.0140.00516.36
7.2.320.0130.00416.73
7.2.310.0090.00916.49
7.2.300.0070.01016.39
7.2.290.0100.00716.74
7.2.130.0090.00316.51
7.2.120.0030.01416.60
7.2.110.0090.00916.37
7.2.100.0040.01216.49
7.2.90.0040.00716.71
7.2.80.0150.00416.44
7.2.70.0090.00516.51
7.2.60.0030.01116.61
7.2.50.0190.00316.47
7.2.40.0000.01216.42
7.2.30.0120.00316.49
7.2.20.0000.01516.21
7.2.10.0180.00416.33
7.2.00.0150.00916.82
7.1.250.0000.01415.44
7.1.200.0000.01315.76
7.1.70.0050.00317.02
7.1.60.0140.01019.46
7.1.50.0120.00916.96
7.1.00.0030.07722.35
7.0.200.0570.01315.02
7.0.140.0030.09022.00
7.0.60.0130.05720.04
7.0.50.0000.05317.86
7.0.40.0000.09020.09
7.0.30.0330.07020.07
7.0.20.0330.08020.23
7.0.10.0070.09020.23
7.0.00.0030.06020.06
5.6.280.0030.05020.82
5.6.210.0130.07320.75
5.6.200.0030.06718.25
5.6.190.0070.08720.48
5.6.180.0100.05020.52
5.6.170.0430.06720.60
5.6.160.0100.04320.59
5.6.150.0070.04718.15
5.6.140.0030.04718.27
5.6.130.0100.07018.29
5.6.120.0070.08721.05
5.6.110.0030.04020.99
5.6.100.0130.06721.01
5.6.90.0170.05320.95
5.6.80.0130.04020.53
5.6.70.4200.04320.50
5.5.350.0070.06320.47
5.5.340.0030.05717.97
5.5.330.0100.03720.27
5.5.320.0470.06720.27
5.5.310.0270.06020.19
5.5.300.0130.07317.98
5.5.290.0030.08717.91
5.5.280.0070.06320.80
5.5.270.0070.09020.73
5.5.260.0100.07720.89
5.5.250.0070.04320.66
5.5.240.0230.07320.18
5.4.450.0870.07719.30
5.4.440.0430.06719.61
5.4.430.1000.05319.60
5.4.420.0670.00019.32
5.4.410.0100.05318.69
5.4.400.0330.04718.82
5.4.390.0330.05718.71
5.4.380.0270.05318.59
5.4.370.0470.03718.77
5.4.360.0230.04018.53
5.4.350.0080.03612.02
5.4.340.0070.03912.01
5.4.320.0050.03712.50
5.4.310.0040.04012.50
5.4.300.0070.03512.50
5.4.290.0050.03912.48
5.4.280.0010.04012.38
5.4.270.0030.04112.39
5.4.260.0070.05012.38
5.4.250.0040.04012.39
5.4.240.0090.04812.38
5.4.230.0070.03812.37
5.4.220.0070.03612.38
5.4.210.0090.04512.38
5.4.200.0090.05712.38
5.4.190.0120.04912.38
5.4.180.0030.04512.38
5.4.170.0130.04412.38
5.4.160.0040.04012.38
5.4.150.0090.04812.37
5.4.140.0040.05112.06
5.4.130.0040.03712.04
5.4.120.0050.05012.00
5.4.110.0030.03712.00
5.4.100.0070.03412.00
5.4.90.0070.03712.00
5.4.80.0060.03711.99
5.4.70.0040.03711.99
5.4.60.0050.03511.99
5.4.50.0050.04111.99
5.4.40.0070.04011.98
5.4.30.0060.03511.98
5.4.20.0070.03611.98
5.4.10.0040.03911.98
5.4.00.0040.05211.47
5.3.290.0060.03812.80
5.3.280.0080.04812.70
5.3.270.0070.05112.73
5.3.260.0090.04212.72
5.3.250.0090.04412.72
5.3.240.0070.05712.72
5.3.230.0050.04412.71
5.3.220.0030.04612.68
5.3.210.0040.04112.68
5.3.200.0030.04112.68
5.3.190.0040.04012.68
5.3.180.0060.03812.67
5.3.170.0080.03512.66
5.3.160.0070.03612.67
5.3.150.0110.04512.67
5.3.140.0050.05412.66
5.3.130.0090.04612.66
5.3.120.0110.04512.66
5.3.110.0070.03912.65
5.3.100.0050.04112.12
5.3.90.0090.03812.10
5.3.80.0090.03412.09
5.3.70.0060.03712.09
5.3.60.0060.03712.08
5.3.50.0080.03512.02
5.3.40.0050.03812.02
5.3.30.0060.03711.98
5.3.20.0070.04211.76
5.3.10.0090.05011.73
5.3.00.0080.05911.72
5.2.170.0090.0479.22
5.2.160.0050.0429.21
5.2.150.0030.0359.21
5.2.140.0070.0299.21
5.2.130.0050.0379.17
5.2.120.0050.0439.18
5.2.110.0060.0439.18
5.2.100.0040.0339.18
5.2.90.0050.0299.17
5.2.80.0050.0319.18
5.2.70.0080.0299.18
5.2.60.0070.0359.13
5.2.50.0060.0339.10
5.2.40.0100.0269.07
5.2.30.0050.0329.05
5.2.20.0060.0299.04
5.2.10.0050.0348.94
5.2.00.0050.0328.81
5.1.60.0050.0258.09
5.1.50.0070.0268.09
5.1.40.0040.0288.07
5.1.30.0070.0368.42
5.1.20.0080.0398.44
5.1.10.0060.0388.17
5.1.00.0090.0288.16
5.0.50.0030.0266.65
5.0.40.0050.0196.50
5.0.30.0060.0296.32
5.0.20.0030.0206.29
5.0.10.0060.0176.26
5.0.00.0020.0326.26
4.4.90.0040.0144.77
4.4.80.0010.0174.75
4.4.70.0030.0154.76
4.4.60.0050.0144.76
4.4.50.0050.0194.77
4.4.40.0040.0314.71
4.4.30.0020.0214.76
4.4.20.0020.0174.84
4.4.10.0020.0174.85
4.4.00.0040.0244.76
4.3.110.0060.0184.66
4.3.100.0000.0174.66
4.3.90.0020.0164.63
4.3.80.0040.0234.59
4.3.70.0040.0144.63
4.3.60.0030.0144.63
4.3.50.0050.0154.62
4.3.40.0020.0254.55
4.3.30.0030.0183.36
4.3.20.0040.0153.36
4.3.10.0010.0233.30
4.3.00.0370.0176.91

preferences:
45.7 ms | 401 KiB | 5 Q