[thelist] PHP Multidimensional Array Keys

[Les Lytollis]

Untested for many years, but from memory, I think a bit of good ol'
recursion is what you want:

function get_array_elems($arrResult){ 
           while(list($key,$value)=each($arrResult)){ 
                 if (is_array($value)){ 
                    get_array_elems($value, $where . "[$key]"); 
                 } 
                 else { 
                       for ($i=0; $i<count($value);$i++){ 
                             echo $where . "[$key]=" . $value; 
                      } 
                 } 
           } 
} 


get_array_elems($arrResult);


-----Original Message-----
From: Gavin Lilley [mailto:gavin at crispuk.net] 
Sent: 30 September 2003 10:47
To: thelist at lists.evolt.org
Subject: [thelist] PHP Multidimensional Array Keys


I am a little stuck with an array. Please help!


matrixArray [Array
(
    [1] => Array
        (
            [unitName] => Unit 2
            [15] => Array
                (
                    [topicName] => Tutorial
                    [2] => Array
                        (
                            [matrixKey] => 16
                            [hours] => 16.00
                        )

                )

            [12] => Array
                (
                    [topicName] => Induction
                    [1] => Array
                        (
                            [matrixKey] => 17
                            [hours] => 6.00
                        )

                    [4] => Array
                        (
                            [matrixKey] => 18
                            [hours] => 44.00
                        )

                )

        )

)

To loop through the array I can do this:
while (list($key, $value) = each ($unitArray)) { echo "[$key ][ $value
]<br>";} But I do not know how to 'drill down' through the array. Whats
wrong with the following code?

while (list($key, $value) = each ($unitArray)) {
 echo "[$key ][ $value ]<br>";
    while (list($keyA, $valueA) = each ($unitArray[$key])) {
     echo "[$keyA ][ $valueA ]<br>";
    }
}

Appreciate any help.

-- 
G.

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