sort based on substring

[brechmos]

A bit of a dumb question. I have an array of directories and would
like to sort the array based on the third directory element...

e.g., from...

here/there/200801/everywhere
here/there/200803/everywhere2
here/there/200802/everywhere3

to...

here/there/200801/everywhere
here/there/200802/everywhere2
here/there/200803/everywhere3

I can think of lots of unelegant ways, is there an elegant one? (few
lines of code?)

Thanks...

[Rik Wasmus]

On Tue, 22 Jan 2008 18:04:31 +0100, brechmos <br******@gmail.comwrote:

A bit of a dumb question. I have an array of directories and would
like to sort the array based on the third directory element...

e.g., from...

here/there/200801/everywhere
here/there/200803/everywhere2
here/there/200802/everywhere3

to...

here/there/200801/everywhere
here/there/200802/everywhere2
here/there/200803/everywhere3

I can think of lots of unelegant ways, is there an elegant one? (few
lines of code?)

function _mysort($a,$b){
$a_array = explode('/',$a);
$asorter = isset($a_array[2]) ? $a_array[2] : '';
$b_array = explode('/',$b);
$bsorter = isset($b_array[2]) ? $b_array[2] : '';
return strcmp($asorter,$bsorter);
}
usort($array,'_mysort');

--
Rik Wasmus

[brechmos]

I knew there must be a good answer. Thanks.

>
function _mysort($a,$b){
$a_array = explode('/',$a);
$asorter = isset($a_array[2]) ? $a_array[2] : '';
$b_array = explode('/',$b);
$bsorter = isset($b_array[2]) ? $b_array[2] : '';
return strcmp($asorter,$bsorter);}

usort($array,'_mysort');

--
Rik Wasmus