Retriving Subarrays PHP - php

Question

I have a database which has 6 column A B C D E X, for each combination of ABCDE I have a different value of X.
I need a way to search through, that will allow all values of X for different combinations (for example all X when A=1, or all X when A=1 and B=2 etc)
My thought was to translate it into a 5-D array which looks like this:
Array[A][B][C][D][E]=X;
But now I'm trying to extract sub arrays, when I don't know how may of the dimensions will be constant. So I need to be able to extract all value of X for Array[1][5][][][] or Array[2][4][5][][]… etc.
And I'm totally stuck.
I'm trying to do 6 loops one inside another but I don't know how to handle those that are constant.
Help with ideas will be very very helpful.
Edit
Database:
A B C D E X
1 1 1 1 1 53
1 1 2 3 2 34
2 1 1 4 2 64
Turned it into an array:
Array[1][1][1][1][1]=53
Array[1][1][2][3][2]=34
For
Input: A=1
Output 53,34
Input A=1,B=1,C=1
Output: 53,
etc

Answer 1

Try this then
<?php
$arr = array();
$result = mysql_query("SELECT A,B,C,D,E,X FROM table_name ORDER BY A ASC,B ASC,C ASC,D ASC,E ASC");
if(mysql_num_rows($result) > 0) {
while($row = mysql_fetch_assoc($result)) {
array_push($arr,$row);
}
}
function search($arr,$values) {
$return = array();
foreach($arr AS $key => $value) {
$ok = true;
foreach(array('A','B','C','D','E') AS $letter) {
if(array_key_exists($letter,$values)) {
if($value[$letter] != $values[$letter]) {
$ok = false;
break;
}
}
}
if($ok) array_push($return,$value['X']);
}
return (($return) ? implode(',',$return) : false);
}
echo '<pre>';
print_r(search($arr,array('A' => 1)));
echo '</pre>';
?>