Re: [PHP] Tricky sorting problem
the -5 should be -7
René Fournier wrote:
(Well, at least it's tricky for me... :-)
I need to sort an array based on three numbers that are situated in
the middle of each array element. For example:
$list[] is an array, and contains the following [unsorted] elements:
Super-S862-030.jpg
Super-S1162-040.jpg
Super-S874-010.jpg
Super-S1174-020.jpg
I want to sort $list based on those last three numbers, just before
the extension, so that the new sort order is:
Super-S874-010.jpg
Super-S1174-020.jpg
Super-S862-030.jpg
Super-S1162-040.jpg
I tried writing my own sort function--but can't seem to get anywhere
with it:
function cmp ($a,$b) {
if (substr($a,-5,2) == substr($b,-5,2)) return 0;
return (substr($a,-5,2) substr($b,-5,2)) ? -1 : 1 ;
}
usort($list,cmp);
Any ideas? (Thanks.)
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
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Re: [PHP] Tricky sorting problem
...and the 2 should be 3 :)
- E
Marek Kilimajer [EMAIL PROTECTED] wrote:
the -5 should be -7
René Fournier wrote:
(Well, at least it's tricky for me... :-)
I need to sort an array based on three numbers that are situated in
the middle of each array element. For example:
$list[] is an array, and contains the following [unsorted] elements:
Super-S862-030.jpg
Super-S1162-040.jpg
Super-S874-010.jpg
Super-S1174-020.jpg
I want to sort $list based on those last three numbers, just before
the extension, so that the new sort order is:
Super-S874-010.jpg
Super-S1174-020.jpg
Super-S862-030.jpg
Super-S1162-040.jpg
I tried writing my own sort function--but can't seem to get anywhere
with it:
function cmp ($a,$b) {
if (substr($a,-5,2) == substr($b,-5,2)) return 0;
return (substr($a,-5,2) substr($b,-5,2)) ? -1 : 1 ;
}
usort($list,cmp);
Any ideas? (Thanks.)
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
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Re: [PHP] Tricky sorting problem
Yes, and 2 should be 3
Marek Kilimajer wrote:
the -5 should be -7
René Fournier wrote:
(Well, at least it's tricky for me... :-)
I need to sort an array based on three numbers that are situated in
the middle of each array element. For example:
$list[] is an array, and contains the following [unsorted] elements:
Super-S862-030.jpg
Super-S1162-040.jpg
Super-S874-010.jpg
Super-S1174-020.jpg
I want to sort $list based on those last three numbers, just before
the extension, so that the new sort order is:
Super-S874-010.jpg
Super-S1174-020.jpg
Super-S862-030.jpg
Super-S1162-040.jpg
I tried writing my own sort function--but can't seem to get anywhere
with it:
function cmp ($a,$b) {
if (substr($a,-5,2) == substr($b,-5,2)) return 0;
return (substr($a,-5,2) substr($b,-5,2)) ? -1 : 1 ;
}
usort($list,cmp);
Any ideas? (Thanks.)
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Tricky sorting problem
I need to sort an array based on three numbers that are situated in
the
middle of each array element. For example:
$list[] is an array, and contains the following [unsorted] elements:
Super-S862-030.jpg
Super-S1162-040.jpg
Super-S874-010.jpg
Super-S1174-020.jpg
I want to sort $list based on those last three numbers, just before
the
extension, so that the new sort order is:
Super-S874-010.jpg
Super-S1174-020.jpg
Super-S862-030.jpg
Super-S1162-040.jpg
Maybe something like this?
foreach($list as $k = $v)
{
$p = explode('-',$v);
$new_list[$p[2]] = $v;
}
ksort($new_list);
reset($new_list);
$new_list will have the XXX number as the key of the array element and
the name of the file corresponding to the number as it's value.
If that won't work, let us know.
---John Holmes...
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Re: [PHP] Tricky sorting problem
It works! Thanks.
On Wednesday, October 30, 2002, at 10:50 AM, @ Edwin wrote:
...and the 2 should be 3 :)
- E
Marek Kilimajer [EMAIL PROTECTED] wrote:
the -5 should be -7
René Fournier wrote:
(Well, at least it's tricky for me... :-)
I need to sort an array based on three numbers that are situated in
the middle of each array element. For example:
$list[] is an array, and contains the following [unsorted] elements:
Super-S862-030.jpg
Super-S1162-040.jpg
Super-S874-010.jpg
Super-S1174-020.jpg
I want to sort $list based on those last three numbers, just before
the extension, so that the new sort order is:
Super-S874-010.jpg
Super-S1174-020.jpg
Super-S862-030.jpg
Super-S1162-040.jpg
I tried writing my own sort function--but can't seem to get anywhere
with it:
function cmp ($a,$b) {
if (substr($a,-5,2) == substr($b,-5,2)) return 0;
return (substr($a,-5,2) substr($b,-5,2)) ? -1 : 1 ;
}
usort($list,cmp);
Any ideas? (Thanks.)
...Rene
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
---
René Fournier,
[EMAIL PROTECTED]
Toll-free +1.888.886.2754
Tel +1.403.291.3601
Fax +1.403.250.5228
www.smartslitters.com
SmartSlitters International
#33, 1339 - 40th Ave NE
Calgary AB T2E 8N6
Canada
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
