3v4l.org

run code in 300+ PHP versions simultaneously
<?php function count_digits($digit, $base) { // TODO: add type validation return $digit >= $base ? 1 + count_digits($digit / $base, $base) : 1; } $digit = 1554; $tries = 10000; var_dump(count_digits($digit, 2), decbin($digit));

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)
8.3.40.0100.01018.60
8.3.30.0030.01020.17
8.3.20.0040.00420.27
8.3.10.0000.00922.09
8.3.00.0040.00422.52
8.2.170.0100.01022.96
8.2.160.0140.00020.57
8.2.150.0040.00424.18
8.2.140.0040.01124.66
8.2.130.0030.01326.16
8.2.120.0040.00419.54
8.2.110.0030.00621.95
8.2.100.0070.00717.78
8.2.90.0000.00719.05
8.2.80.0000.00719.33
8.2.70.0000.00817.37
8.2.60.0000.00818.04
8.2.50.0000.00818.07
8.2.40.0000.00818.14
8.2.30.0110.00018.01
8.2.20.0000.00817.52
8.2.10.0040.00417.55
8.2.00.0060.00417.65
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0090.00024.02
8.1.230.0060.00619.09
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0000.00917.54
8.1.180.0060.00320.08
8.1.170.0040.00418.57
8.1.160.0040.00422.03
8.1.150.0040.00418.56
8.1.140.0050.00217.42
8.1.130.0030.00317.82
8.1.120.0040.00417.30
8.1.110.0040.00417.41
8.1.100.0000.00717.41
8.1.90.0070.00017.35
8.1.80.0040.00317.33
8.1.70.0030.00317.36
8.1.60.0030.00817.64
8.1.50.0000.00717.50
8.1.40.0050.00217.50
8.1.30.0030.00517.63
8.1.20.0030.00617.61
8.1.10.0040.00417.49
8.1.00.0020.01017.31
8.0.300.0070.00018.77
8.0.290.0030.00317.15
8.0.280.0030.00318.42
8.0.270.0030.00317.14
8.0.260.0030.00316.79
8.0.250.0000.00716.86
8.0.240.0000.00816.91
8.0.230.0070.00016.82
8.0.220.0070.00016.88
8.0.210.0030.00316.74
8.0.200.0030.00316.82
8.0.190.0040.00416.80
8.0.180.0030.00616.80
8.0.170.0040.00416.75
8.0.160.0030.00516.83
8.0.150.0030.00516.77
8.0.140.0040.00416.67
8.0.130.0000.00513.21
8.0.120.0040.00416.79
8.0.110.0050.00316.88
8.0.100.0000.00816.68
8.0.90.0080.00016.85
8.0.80.0090.00616.76
8.0.70.0040.00416.93
8.0.60.0000.00816.81
8.0.50.0050.00216.88
8.0.30.0100.00916.83
8.0.20.0100.00817.40
8.0.10.0050.00316.91
8.0.00.0130.00516.83
7.4.330.0000.00615.00
7.4.320.0000.00616.41
7.4.300.0000.00816.59
7.4.290.0000.00816.59
7.4.280.0030.00516.37
7.4.270.0070.00016.63
7.4.260.0000.01016.58
7.4.250.0080.00016.45
7.4.240.0020.00516.55
7.4.230.0000.00716.34
7.4.220.0030.01316.54
7.4.210.0100.00916.44
7.4.200.0000.00716.61
7.4.190.0000.00716.71
7.4.160.0120.00916.58
7.4.150.0080.00817.40
7.4.140.0070.01517.86
7.4.130.0090.00916.50
7.4.120.0120.00516.50
7.4.110.0090.00916.59
7.4.100.0110.01016.65
7.4.90.0150.00616.64
7.4.80.0070.01119.39
7.4.70.0070.01016.41
7.4.60.0080.00916.71
7.4.50.0060.00016.39
7.4.40.0000.01822.77
7.4.30.0030.01316.60
7.4.00.0130.00315.18
7.3.330.0000.00513.24
7.3.320.0030.00313.22
7.3.310.0030.00316.37
7.3.300.0030.00316.16
7.3.290.0070.00716.27
7.3.280.0080.00716.35
7.3.270.0100.00717.40
7.3.260.0040.02016.40
7.3.250.0130.00616.46
7.3.240.0000.01616.24
7.3.230.0100.00716.66
7.3.210.0120.00616.41
7.3.200.0110.00719.39
7.3.190.0150.00316.57
7.3.180.0120.00916.49
7.3.170.0080.00816.50
7.3.160.0060.01016.27
7.3.120.0060.00914.86
7.2.330.0100.00716.47
7.2.320.0070.01016.32
7.2.310.0110.00716.34
7.2.300.0120.00616.21
7.2.290.0060.01016.68
7.2.60.0000.01316.93
7.1.200.0070.00415.88
7.1.70.0050.00217.04
7.1.60.0120.00619.21
7.1.50.0100.01317.13
7.1.00.0030.04322.43
7.0.200.0100.00714.90
7.0.140.0030.07722.02
7.0.60.0170.06319.97
7.0.50.0100.08317.86
7.0.40.0070.08719.96
7.0.30.0300.05020.21
7.0.20.0370.05020.14
7.0.10.0200.08720.27
7.0.00.0100.08720.06
5.6.280.0030.07321.07
5.6.210.0070.08020.51
5.6.200.0100.08318.29
5.6.190.0170.04720.54
5.6.180.0270.08020.34
5.6.170.0130.04320.62
5.6.160.0030.09020.54
5.6.150.0070.07018.27
5.6.140.0170.03718.12
5.6.130.0200.06718.17
5.6.120.0100.08020.99
5.6.110.0100.07720.96
5.6.100.0100.08021.01
5.6.90.0070.04020.99
5.6.80.0070.04720.38
5.6.70.0170.08020.28
5.5.350.0070.04720.46
5.5.340.0030.04018.01
5.5.330.0030.04020.19
5.5.320.0200.08320.36
5.5.310.0200.07020.26
5.5.300.0030.04018.03
5.5.290.0130.07717.98
5.5.280.0030.08720.80
5.5.270.0070.05320.86
5.5.260.0230.06720.83
5.5.250.0130.05320.50
5.5.240.0200.07020.16
5.4.450.0000.06319.36
5.4.440.0900.05019.16
5.4.430.0730.05719.46
5.4.420.1170.08719.62
5.4.410.0900.05319.41
5.4.400.1370.05018.82
5.4.390.0900.07318.57
5.4.380.0200.05318.75
5.4.370.0230.04318.73
5.4.360.0100.05318.77
5.4.350.0110.04112.02
5.4.340.0040.04012.01
5.4.320.0020.03912.50
5.4.310.0090.04112.50
5.4.300.0070.03512.50
5.4.290.0070.04112.50
5.4.280.0040.03712.40
5.4.270.0050.04112.39
5.4.260.0070.04612.40
5.4.250.0070.05318.84
5.4.240.0170.04318.73
5.4.230.0030.08318.65
5.4.220.0000.06318.90
5.4.210.0170.07019.05
5.4.200.0030.05718.94
5.4.190.0070.05718.81
5.4.180.0100.05718.78
5.4.170.0100.05318.79
5.4.160.0130.05718.72
5.4.150.0100.06318.97
5.4.140.0000.06316.43
5.4.130.0100.06716.38
5.4.120.0070.05316.42
5.4.110.0170.06016.49
5.4.100.0070.05716.46
5.4.90.0200.05716.46
5.4.80.0100.06316.39
5.4.70.0100.04716.54
5.4.60.0030.05016.48
5.4.50.0000.05316.48
5.4.40.0130.06016.54
5.4.30.0100.04716.36
5.4.20.0070.04716.32
5.4.10.0070.07316.44
5.4.00.0170.04015.79
5.3.290.0050.04012.80
5.3.280.0100.05014.61
5.3.270.0100.06314.59
5.3.260.0100.07714.59
5.3.250.0100.06714.68
5.3.240.0200.05714.68
5.3.230.0100.05714.72
5.3.220.0100.05314.78
5.3.210.0130.05014.53
5.3.200.0170.06714.58
5.3.190.0030.05314.57
5.3.180.0100.05314.57
5.3.170.0070.05014.39
5.3.160.0070.05714.77
5.3.150.0100.04714.73
5.3.140.0000.05314.62
5.3.130.0070.05314.61
5.3.120.0100.04714.77
5.3.110.0030.05314.53
5.3.100.0170.05313.86
5.3.90.0100.04713.84
5.3.80.0070.04713.94
5.3.70.0070.06714.11
5.3.60.0070.04714.07
5.3.50.0130.04014.16
5.3.40.0100.04713.93
5.3.30.0030.05014.08
5.3.20.0100.04313.91
5.3.10.0100.04713.55
5.3.00.0030.07313.71
5.2.170.0130.05311.11
5.2.160.0030.04011.12
5.2.150.0030.04711.13
5.2.140.0070.04011.12
5.2.130.0000.04311.18
5.2.120.0070.05711.10
5.2.110.0000.04711.16
5.2.100.0000.04311.16
5.2.90.0100.04011.10
5.2.80.0070.06011.27
5.2.70.0030.04311.18
5.2.60.0030.04311.12
5.2.50.0100.03711.01
5.2.40.0030.04010.98
5.2.30.0030.05310.95
5.2.20.0000.04311.04
5.2.10.0030.03710.93
5.2.00.0070.04010.70
5.1.60.0070.03010.20
5.1.50.0130.02710.15
5.1.40.0030.03310.07
5.1.30.0030.03710.39
5.1.20.0100.03310.43
5.1.10.0200.02710.13
5.1.00.0000.04010.18
5.0.50.0030.0308.46
5.0.40.0000.0308.46
5.0.30.0030.0408.26
5.0.20.0000.0278.11
5.0.10.0030.0278.13
5.0.00.0070.0378.22
4.4.90.0000.0237.38
4.4.80.0000.0337.38
4.4.70.0000.0237.38
4.4.60.0000.0237.38
4.4.50.0100.0137.38
4.4.40.0000.0337.38
4.4.30.0000.0237.38
4.4.20.0000.0237.38
4.4.10.0000.0237.38
4.4.00.0000.0337.38
4.3.110.0070.0177.38
4.3.100.0000.0237.38
4.3.90.0000.0207.38
4.3.80.0070.0407.38
4.3.70.0030.0177.38
4.3.60.0070.0177.38
4.3.50.0030.0207.38
4.3.40.0000.0337.38
4.3.30.0030.0207.38
4.3.20.0000.0237.38
4.3.10.0000.0237.38
4.3.00.0070.0236.41

preferences:
44.68 ms | 400 KiB | 5 Q