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  1. <?php
  2.  
  3. foreach(array_merge(range(0, 9), range('A', 'Z')) as $char) {
  4. echo $char . PHP_EOL;
  5. }
Success #stdin #stdout 0.02s 52432KB
stdin
Standard input is empty
stdout
0
1
2
3
4
5
6
7
8
9
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