On 22 April 2004 15:22, Paul wrote:
> Hi!
> Got this script:
>
> <?php
> for($i='A';$i<='Z';$i++){ echo $i.' | '; }
> >
>
> The output is:
> 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 |
> ...
> YX | YY | YZ |
>
> where is should display only letters from A to Z.
> Why is that?
Because 'Z'++ (if you see what I mean!) is 'AA'.
(So, at the end of the loop iteration which echoes 'Z', $i becomes 'AA',
which is <'Z', and as a result the loop continues on through all the values
you saw. The loop terminates after 'YZ' is echoed, since at the end of that
iteration $i increments to 'ZA', which is not <'Z', and Bob's your uncle!)
One way of solving this is:
for ($i='A'; $i!='AA'; $i++)
Cheers!
Mike
---------------------------------------------------------------------
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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