RE: [PHP] A to Z incremental

use the chr($i) system > -----Original Message----- > From: Ford, Mike [LSS] [mailto:M.Ford@leedsmet.ac.uk] > Sent: Friday, April 23, 2004 9:31 PM > To: 'Paul'; php-general@lists.php.net > Subject: RE: [PHP] A to Z incremental > > > On 22 April 2004 15:22, Paul wrote: > > > Hi! > > Got this script: > > > > <?php > > for($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: m.ford@leedsmet.ac.uk > Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php