[RESOLVED] Find current key pos of multidimensional array?

[PHPonCrack]

Using the following example, what is the best way to find out the current key of $mainArray (i.e. need to check if the pointer is either at 1, 2 or 3), need to use some kind of conditional statements within the second nested foreach, depending on what the current key is of $mainArray.

$mainArray = array
(
    1 => array('A1'
                ),
    2 => array('B1',
               'B2',
               'B3',
               'B4',
               'B5'
                ),
    3 => array('C1',
               'C2',
               'C3',
               'C4',
               'C5'
                 )
);

foreach ($mainArray as $subArray)
{
    foreach ($subArray as $key=>$value)
    {
        if ([I][COLOR="Red"]$mainArray is equal to whatever number[/COLOR][/I])
        {
         [I][COLOR="Red"]do something;[/COLOR][/I]
        }
    }
}

[NogDog]

Use a "$key => $value" expression in both foreach statements (using different variable names in each, of course).

[PHPonCrack]

You mean like this? sorry, a bit confused on this one

foreach ($mainArray as $key=>$value)
{
    foreach ($subArray as $key=>$value)
    {
        [COLOR="Red"][I]conditional statement[/I][/COLOR]
    }
}

[NogDog]

You'll need to use different variable names, or else the second foreach's values will overwrite the first:

foreach($mainArray as $key => $subArray)
{
   foreach($subArray as $subKey => $value)
   {
      // do stuff with $key, $subKey, and/or $value
   }
}