PHP Sort array by field? -

possible duplicate:
how sort multidemensional array inner key
how sort array of arrays in php?

how can sort array like: $array[$i]['title'];

array structure might like:

array[0]( 'id' => 321, 'title' => 'some title', 'slug' => 'some-title', 'author' => 'some author', 'author_slug' => 'some-author');  array[1]( 'id' => 123, 'title' => 'another title', 'slug' => 'another-title', 'author' => 'another author', 'author_slug' => 'another-author'); 

so data displayed in asc order based off title field in array?

use usort built explicitly purpose.

function cmp($a, $b) {     return strcmp($a["title"], $b["title"]); }  usort($array, "cmp");