3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getColumnLetter($index) { $letters = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'U', 'V', 'W', 'X', 'Y', 'Z'); $result = ""; while ($index >= count($letters)) { $place = $index * count($letters); while ($index >= $place) { echo $index; } } } echo getColumnLetter(2200);

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)
8.3.60.0071.99518.43
8.3.50.0171.98621.22
8.3.40.0071.99618.68
8.3.30.0072.00119.01
8.3.20.0031.99720.36
8.3.10.0031.99921.86
8.3.00.0171.98523.49
8.2.180.0101.99218.29
8.2.170.0071.99122.96
8.2.160.0101.99322.05
8.2.150.0101.99224.18
8.2.140.0031.99924.66
8.2.130.0101.99126.16
8.2.120.0071.99517.50
8.2.110.0071.99522.20
8.2.100.0071.99517.78
8.2.90.0002.00319.08
8.2.80.0031.99717.97
8.2.70.0032.00017.38
8.2.60.0071.99517.80
8.2.50.0002.00018.07
8.2.40.0071.99521.07
8.2.30.0032.00319.92
8.2.20.0101.98917.75
8.2.10.0031.99818.06
8.2.00.0002.00318.09
8.1.280.0201.98325.92
8.1.270.0131.98820.43
8.1.260.0071.99726.35
8.1.250.0071.99528.09
8.1.240.0071.99722.74
8.1.230.0101.99317.52
8.1.220.0071.99417.78
8.1.210.0032.00318.77
8.1.200.0032.00017.35
8.1.190.0032.00017.23
8.1.180.0032.00018.10
8.1.170.0071.99718.64
8.1.160.0031.99922.07
8.1.150.0101.99718.86
8.1.140.0002.00517.46
8.1.130.0032.00317.87
8.1.120.0002.00217.49
8.1.110.0031.99917.40
8.1.100.0002.00217.51
8.1.90.0131.99517.50
8.1.80.0002.00117.51
8.1.70.0002.00417.49
8.1.60.0032.00017.59
8.1.50.0031.99817.55
8.1.40.0002.00217.43
8.1.30.0002.00317.44
8.1.20.0031.99917.61
8.1.10.0071.99717.59
8.1.00.0002.00417.45
8.0.300.0031.99618.77
8.0.290.0002.00516.63
8.0.280.0002.00018.38
8.0.270.0071.99617.09
8.0.260.0002.00217.18
8.0.250.0032.00016.85
8.0.240.0071.99416.82
8.0.230.0071.99616.71
8.0.220.0002.00416.62
8.0.210.0002.00116.78
8.0.200.0002.00216.88
8.0.190.0002.00416.87
8.0.180.0032.00016.61
8.0.170.0032.00516.78
8.0.160.0032.00016.68
8.0.150.0071.99716.73
8.0.140.0002.00216.79
8.0.130.0002.00213.31
8.0.120.0002.00116.84
8.0.110.0031.99916.82
8.0.100.0031.99816.75
8.0.90.0002.00316.66
8.0.80.0131.98916.74
8.0.70.0002.00416.76
8.0.60.0002.00416.64
8.0.50.0031.99916.59
8.0.30.0131.98916.96
8.0.20.0161.98717.40
8.0.10.0032.00116.95
8.0.00.0101.99216.71
7.4.330.0032.00315.08
7.4.320.0071.99616.39
7.4.300.0071.99516.36
7.4.290.0101.99616.48
7.4.280.0032.00016.51
7.4.270.0031.99916.48
7.4.260.0031.99916.36
7.4.250.0031.99916.40
7.4.240.0032.00016.34
7.4.230.0002.00116.50
7.4.220.0002.00416.49
7.4.210.0131.98016.50
7.4.200.0032.00016.27
7.4.160.0201.97116.36
7.4.150.0161.98117.40
7.4.140.0321.94317.86
7.4.130.0311.97216.56
7.4.120.0151.98516.39
7.4.110.0202.43616.42
7.4.100.0102.43816.21
7.4.90.0262.45216.39
7.4.80.0102.46619.39
7.4.70.0032.41216.40
7.4.60.0032.46316.45
7.4.50.0032.49616.29
7.4.40.0062.43616.29
7.4.30.0132.46416.36
7.4.00.0072.49014.84
7.3.330.0002.00313.32
7.3.320.0002.00213.16
7.3.310.0002.00216.07
7.3.300.0071.99516.16
7.3.290.0161.98416.24
7.3.280.0321.75416.15
7.3.270.0071.98717.40
7.3.260.0151.94616.14
7.3.250.0131.98816.33
7.3.240.0291.96816.41
7.3.230.0162.46316.39
7.3.210.0162.45816.26
7.3.200.0102.47016.43
7.3.190.0232.14216.48
7.3.180.0032.47616.45
7.3.170.0132.46716.27
7.3.160.0132.45016.18
7.2.330.0232.41716.58
7.2.320.0032.47316.66
7.2.310.0102.41616.66
7.2.300.0262.18016.34
7.2.290.0102.44716.65
7.2.00.0032.49819.16
7.1.100.0132.48717.63
7.1.70.0002.50116.80
7.1.60.0072.49519.42
7.1.50.0032.49817.18
7.1.00.0032.49722.42
7.0.200.0602.41414.87
7.0.60.0032.49719.85
7.0.50.0032.47717.77
7.0.40.0132.47319.94
7.0.30.0232.46019.80
7.0.20.0332.45319.78
7.0.10.0172.46319.88
7.0.00.0102.47019.88
5.6.280.0002.50020.91
5.6.210.0102.47720.49
5.6.200.0002.50018.14
5.6.190.0032.47720.37
5.6.180.0232.46020.50
5.6.170.0232.44320.43
5.6.160.0002.48020.30
5.6.150.0072.48018.24
5.6.140.0132.48717.99
5.6.130.0032.47718.23
5.6.120.0002.48720.98
5.6.110.0072.49321.12
5.6.100.0032.49721.08
5.6.90.0102.49021.00
5.6.80.0132.46720.52
5.6.70.3672.13320.38
5.5.350.0102.49020.40
5.5.340.0032.48317.97
5.5.330.0001.78020.20
5.5.320.0272.45720.21
5.5.310.0202.46720.13
5.5.300.0072.49317.92
5.5.290.0072.48317.93
5.5.280.0032.49720.88
5.5.270.0132.48720.96
5.5.260.0102.49020.96
5.5.250.0132.48720.79
5.5.240.0102.49020.20
5.4.450.0132.48319.61
5.4.440.0630.33019.09
5.4.430.0670.35319.29
5.4.420.0700.35019.54
5.4.410.0730.33719.06
5.4.400.0700.32319.10
5.4.390.0530.33018.90
5.4.380.0430.36719.20
5.4.370.0530.40019.08
5.4.360.0600.35719.08
5.4.350.0600.36718.93
5.4.340.0730.35318.92
5.4.320.0600.36319.00
5.4.310.0500.36318.79
5.4.300.0500.38318.93
5.4.290.0630.38719.05
5.4.280.0530.36719.17
5.4.270.0670.32319.07
5.4.260.0500.35319.04
5.4.250.0430.36019.09
5.4.240.0230.35719.03
5.4.230.0170.37019.07
5.4.220.0430.34318.99
5.4.210.0870.29319.03
5.4.200.0800.30016.84
5.4.190.0770.32718.98
5.4.180.0730.35019.05
5.4.170.0630.33318.86
5.4.160.0630.33319.14
5.4.150.0570.35018.79
5.4.140.0270.38316.34
5.4.130.0530.37016.37
5.4.120.0300.39016.50
5.4.110.0500.40316.36
5.4.100.0530.35016.33
5.4.90.0630.36016.31
5.4.80.0770.32316.49
5.4.70.0630.32316.38
5.4.60.0032.47716.25
5.4.50.0002.49716.41
5.4.40.0002.49716.41
5.4.30.0232.47316.50
5.4.20.0172.48016.35

preferences:
55.85 ms | 401 KiB | 5 Q