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 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)
8.3.60.0031.99918.43
8.3.50.0081.99321.01
8.3.40.0101.99418.77
8.3.30.0071.99718.90
8.3.20.0101.99220.34
8.3.10.0101.99121.90
8.3.00.0031.99823.60
8.2.180.0071.99518.04
8.2.170.0101.99222.96
8.2.160.0071.99622.25
8.2.150.0101.99224.18
8.2.140.0101.99124.66
8.2.130.0071.99726.16
8.2.120.0071.99419.15
8.2.110.0101.99222.11
8.2.100.0101.99617.75
8.2.90.0032.00019.28
8.2.80.0002.00617.97
8.2.70.0071.99817.50
8.2.60.0031.99817.93
8.2.50.0102.00018.07
8.2.40.0032.00021.05
8.2.30.0031.99818.14
8.2.20.0032.00117.73
8.2.10.0032.00018.07
8.2.00.0031.99718.07
8.1.280.0071.99625.92
8.1.270.0071.99520.40
8.1.260.0032.00126.35
8.1.250.0071.99528.09
8.1.240.0031.99823.92
8.1.230.0071.99619.14
8.1.220.0032.00217.79
8.1.210.0002.00418.77
8.1.200.0001.99917.35
8.1.190.0002.00317.35
8.1.180.0031.99818.10
8.1.170.0032.00018.55
8.1.160.0071.99222.07
8.1.150.0002.00218.99
8.1.140.0031.99717.55
8.1.130.0032.00017.81
8.1.120.0101.99317.57
8.1.110.0071.99717.50
8.1.100.0002.00117.56
8.1.90.0032.00017.58
8.1.80.0031.99817.52
8.1.70.0002.00317.50
8.1.60.0002.00517.56
8.1.50.0131.99017.52
8.1.40.0031.99917.55
8.1.30.0002.00217.44
8.1.20.0031.99917.64
8.1.10.0002.00417.46
8.1.00.0032.00117.55
8.0.300.0032.00318.77
8.0.290.0032.00016.58
8.0.280.0031.99718.36
8.0.270.0031.99817.16
8.0.260.0002.00317.11
8.0.250.0002.00416.84
8.0.240.0031.99916.91
8.0.230.0071.99216.72
8.0.220.0101.99416.76
8.0.210.0002.00216.72
8.0.200.0031.99816.69
8.0.190.0101.99316.75
8.0.180.0031.99816.86
8.0.170.0031.99516.84
8.0.160.0002.00416.80
8.0.150.0071.99616.73
8.0.140.0032.00016.68
8.0.130.0031.99813.29
8.0.120.0071.99716.70
8.0.110.0002.00416.79
8.0.100.0031.99816.72
8.0.90.0101.99316.70
8.0.80.0131.98816.75
8.0.70.0032.00016.72
8.0.60.0002.00316.61
8.0.50.0031.99916.77
8.0.30.0071.99717.05
8.0.20.0111.98817.40
8.0.10.0031.99917.01
8.0.00.0231.97916.56
7.4.330.0031.99915.08
7.4.320.0032.00016.47
7.4.300.0032.00016.37
7.4.290.0101.99516.39
7.4.280.0071.99716.37
7.4.270.0032.00016.48
7.4.260.0031.99816.31
7.4.250.0071.99716.43
7.4.240.0022.00116.41
7.4.230.0071.99516.47
7.4.220.0131.98816.46
7.4.210.0001.99916.43
7.4.200.0002.00416.21
7.4.160.0201.97616.48
7.4.150.0131.99017.40
7.4.140.0111.98717.86
7.4.130.0211.97116.49
7.4.120.0081.99516.49
7.4.110.0102.45816.47
7.4.100.0102.45616.45
7.4.90.0132.45016.38
7.4.80.0102.45419.39
7.4.70.0362.38116.27
7.4.60.0062.47016.48
7.4.50.0002.49916.42
7.4.40.0002.46616.22
7.4.30.0062.46516.37
7.4.00.0032.49414.58
7.3.330.0071.99113.25
7.3.320.0032.00013.31
7.3.310.0071.99816.28
7.3.300.0002.00316.08
7.3.290.0121.98716.15
7.3.280.0211.81016.22
7.3.270.0131.98617.40
7.3.260.0281.97616.16
7.3.250.0091.99016.24
7.3.240.0201.98316.54
7.3.230.0102.46416.39
7.3.210.0102.41516.22
7.3.200.0072.45816.33
7.3.190.0292.10916.52
7.3.180.0132.45316.36
7.3.170.0102.45416.50
7.3.160.0162.42416.22
7.2.330.0162.43916.54
7.2.320.0132.45216.65
7.2.310.0132.46416.38
7.2.300.0262.07716.54
7.2.290.0192.44216.62
7.1.70.0072.24116.89
7.1.60.0102.49119.42
7.1.50.0032.49816.98
7.1.00.0002.50022.16
7.0.200.0832.30114.65
7.0.60.0102.49019.86
7.0.50.0072.49317.81
7.0.40.0002.50019.89
7.0.30.0502.45019.73
7.0.20.0132.48719.91
7.0.10.0072.49319.91
7.0.00.0072.49319.94
5.6.280.0072.49321.00
5.6.210.0072.49320.47
5.6.200.0032.47318.00
5.6.190.0032.49720.42
5.6.180.1702.33020.35
5.6.170.0272.47320.33
5.6.160.0072.49320.18
5.6.150.0072.49318.14
5.6.140.0032.49718.13
5.6.130.0032.49718.13
5.6.120.0032.49720.98
5.6.110.0032.49721.14
5.6.100.0072.49320.98
5.6.90.0172.48320.98
5.6.80.0032.49720.39
5.5.350.0202.48020.40
5.5.340.0132.48717.95
5.5.330.0032.49720.21
5.5.320.3432.15720.24
5.5.310.0232.47720.15
5.5.300.0132.48717.95
5.5.290.0072.49317.99
5.5.280.0102.49020.68
5.5.270.0032.49720.97
5.5.260.0132.48720.87
5.5.250.0102.49020.72
5.5.240.3002.20020.22
5.4.450.0372.46019.39
5.4.440.0600.31319.62
5.4.430.0570.32319.53
5.4.420.0800.32719.33
5.4.410.0700.30019.28
5.4.400.0630.33319.08
5.4.390.0600.32719.20
5.4.380.0700.31019.18
5.4.370.0570.30319.18
5.4.360.0630.33019.11
5.4.350.0600.35319.00
5.4.340.0670.33719.20
5.4.320.0770.35318.90
5.4.310.0670.37319.29
5.4.300.0630.34719.29
5.4.290.0670.38319.04
5.4.280.0470.38319.03
5.4.270.0570.38019.21
5.4.260.0670.35018.76
5.4.250.0630.36319.07
5.4.240.0570.38718.97
5.4.230.0670.37319.17
5.4.220.0470.41019.10
5.4.210.0370.39718.92
5.4.200.0570.32016.71
5.4.190.0630.31718.90
5.4.180.0270.34018.86
5.4.170.0570.32718.94
5.4.160.0770.30718.97
5.4.150.0470.32319.08
5.4.140.0300.34716.51
5.4.130.0500.33016.55
5.4.120.0630.38716.51
5.4.110.0670.33716.33
5.4.100.0570.33316.51
5.4.90.0530.32716.39
5.4.80.0770.30716.29
5.4.70.0600.33316.30
5.4.60.0202.47716.36
5.4.50.0002.49716.53
5.4.40.0272.47016.41
5.4.30.0232.47316.13
5.4.20.0372.46016.20

preferences:
60.58 ms | 401 KiB | 5 Q