- print_r: documentation ( source)
- explode: documentation ( source)
<?php
$eligible_categories = array("mens:apparel");
$list_categories = array("mens:apparel:shirts", "mens:footwear");
$test1 = explode(":",$eligible_categories);
$test2 = explode(":", $list_categories);
print_r($test1);
print_r($tes2);