php recursively parse array - find value

Question

I have an nxn array, which recursively I'm trying to get certain value based on the following:

I would like to search for specific value (needle), in this case 'KEYVAL_TO_FIND' if it is found, then, since that part of the array will always have the same structure, I would like to get 'MY_VALUE'.

How could I achieve this? Thanks

An example of how the array look like (ignore the keys):

[0] = Array
 (
 [0] = Array
 (
 [0] = Array
 [0] = KEYVAL_TO_FIND
 [1] = Array
 (
 [0] = CONST
 [1] = MY_VALUE
 )
 )
 [1] = VAL
 [2] = Array
 (
 [0] = FOO
 [1] = BAR BAZ
 )
 )

• JoshD: @Brian Driscoll: I'm not familiar yet w/ recursion
• mario: @JoshD: Here is a lengthy but understandable article on that topic devzone.zend.com/article/1235 - It's not the easiest programming idiom, but you picked an useful task to experiment with.
• Alix Axel: possible duplicate of searching within all keys in a multidimensional array PHP

Answer 1

a function I use...

function array_searchRecursive( $needle, $haystack, $strict=false, $path=array() )
{
 if( !is_array($haystack) ) {
 return false;
 }
 foreach( $haystack as $key => $val ) {
 if( is_array($val) && $subPath = array_searchRecursive($needle, $val, $strict, $path) ) {
 $path = array_merge($path, array($key), $subPath);
 return $path;
 } elseif( (!$strict && $val == $needle) || ($strict && $val === $needle) ) {
 $path[] = $key;
 return $path;
 }
 }
 return false;
}

I hope you like it and use it :D have a nice day!!