- print_r: documentation ( source)
<?php
function getAllCombinationsArray(){
$return = array();
$root = array( 1=>'cat1', 2=>'cat2', 3=>'cat3' );
$child_1 = array( 1=>'sub_cat1', 2=>'sub_cat2', 3=>'sub_cat3' );
$child_2 = array( 1=>'sub_sub_cat1', 2=>'sub_sub_cat2', 3=>'sub_sub_cat3' );
foreach($root as $fk => $fv){
foreach($child_1 as $ck => $cv){
$cid = $fk.'_'.$ck;
$cname = $fv.' -> '.$cv;
foreach($child_2 as $ck2 => $cv2){
$id = $cid.'_'.$ck2;
$name = $cname.' -> '.$cv2;
$return[$id] = $name;
}
}
}
return $return;
}
print_r(getAllCombinationsArray());