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  1. <?php
  2.  
  3. function numberToColumnName($number){
  4.     $abc = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
  5.     $abc_len = strlen($abc);
  6.  
  7.     $result = "";
  8.     $tmp = $number;
  9.  
  10.     while($number > $abc_len) {
  11.         $remainder = $number % $abc_len;
  12.         $result = $abc[$remainder-1].$result;
  13.         $number = floor($number / $abc_len);
  14.     }
  15.     return $abc[$number-1].$result;
  16. }
  17.  
  18. for($i = 0; $i < 50; $i++){
  19.     echo numberToColumnName($i)."\n";
  20. }
Success #stdin #stdout #stderr 0.02s 52432KB
comments (?)
stdin
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Standard input is empty
stdout
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A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
AA
AB
AC
AD
AE
AF
AG
AH
AI
AJ
AK
AL
AM
AN
AO
AP
AQ
AR
AS
AT
AU
AV
AW
stderr
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PHP Notice:  Uninitialized string offset: -1 in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
PHP Notice:  String offset cast occurred in /home/RKZ7sS/prog.php on line 15
https://ideone.com/pHr0BD
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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