[Resolved] multidimensional array search help needed....

[The_Chancer]

I have found this function courtesy of the php.net site...

function multi_array_search($search_value, $the_array)
{
   if (is_array($the_array))
   {
       foreach ($the_array as $key => $value)
       {
           $result = multi_array_search($search_value, $value);
           if (is_array($result))
           {
               $return[] = $result;
               array_unshift($return, $key);
           }
           elseif ($result == true)
           {
               $return[] = $key;
           }
       }
	return $return;
   }
   else
   {
       if ($search_value == $the_array)
       {
           return true;
       }
       else return false;
   }
}

Which almost works perfectly as far as I need... but I have come across a stumbling block...

an array like:

array (array(id=>1, loc=>316),array(id=>2,loc=>315))

Is $infoarr, and the search is also an array (1,315,316) (set as $inclause)

for ($z=0;$z<count($inclause);$z++)
			{
				$result = multi_array_search($inclause[$z],$infoarr);
				if ($result)
				{
					for ($i=0;$i<count($result);$i++)
					{
						if (!is_array($result[$i]))
						{
							$showarr[]=$infoarr[$result[$i]]['id'];
						}
					}
				}
			}

What I am looking the function to do - is only search the initial array (the_array) for the loc portion - ignoring the ID part, yet passing both back when the multi_array_search has found a record that satisifies the search...

Specifing to only look in the foreach where $key='loc' doesn't work... and I am at a loss as to where to go....

Any pointers ??

[dyntryx]

I'm a bit confused as to what exactly you're trying to do, but I think I understand correctly. I had to read it a few times, but I believe I know what you want to do. So, I'm going to see if I can write something up for you since no one else is and I'm bored. Just put up a reply letting me know how you're coming along so I know whether or not I should be dedicating my time to this. Thanks. :p

[dyntryx]

I only tested this once, so I can't guarantee much. But, I think I found the best way to do this. The following will only let the value be searched if it's key is 'loc' or the value is an array. It searches 'loc' keys because that's what I think you wanted to do. And it searches arrays because it has to break them down to find the 'loc' keys. So, now that multidimensional arrays have confused me, you, and the entire "hello world" 🆒, I present to you my code...

function multi_array_search($search_value, $the_array)
{
   if (is_array($the_array))
   {
       foreach ($the_array as $key => $value)
       {
           /* This is the part I added. */
           if (($key != 'loc') && (!is_array($value))) {
               continue;
           }
           /* End addition. */
           $result = multi_array_search($search_value, $value);
           if (is_array($result))
           {
               $return[] = $result;
               array_unshift($return, $key);
           }
           elseif ($result == true)
           {
               $return[] = $key;
           }
       }
    return $return;
   }
   else
   {
       if ($search_value == $the_array)
       {
           return true;
       }
       else return false;
   }
}

Need anymore help with this (fixing, expanding, doesn't do what you wanted), just reply here or in case I don't respond here, you can find my on AIM or Yahoo! under dyntryx, as well as MSN under [e-mail]. Enjoy. 😃

[The_Chancer]

I managed a little workaround anyway for it... cheating as such, but I made the $infoarr to be array(id=>1,loc=>l316),array(id=>2,loc=>l315)

And did the search for using the second array string (l315,l316,l1) and only got out the correct ones... :-)

I had tried to specify the ($key!='loc') before - but didn't include the is_array() portion and that didn't work... will have a go to see if I can include it in the function instead...

Strange what the mind brings up at 1am, but still, managed to even remember it after a nights sleep... :-)

Gonna mark this resolved now - thanks for the input.