[RESOLVED] Help with Arrays

[shawjames]

This might make you cringe, but I could not find the command to remove from an array. So I wrote this:

<?php
function removeFromArrayUsingMassiveMemory($db_item_list, $num){

//remove $num from array $db_item_list and return array.

	foreach ($db_item_list as $db_item)
		if (strtoupper($db_item) != strtoupper($num))
			$temp_array[] = $db_item;
	return $temp_array;

}
?>

What is the best way to perform this action?

[NogDog]

foreach($db_item_list as $key => $db_item)
{
   if(strtoupper($db_item) == strtoupper($num))
   {
      unset($db_item_list[$key]);
   }
}

PS: You could also use the [man]array_filter/man function, instead.

[shawjames]

Thanks!

Any way to do it without the loop? This operation is inside a loop already...

[NogDog]

As I noted above, [man]array_filter[/man] could be used. It's likely doing a loop, too, but it probably would be faster since it's executing compiled C code.

function removeFromArray($db_item_list, $num){
   return (
      array_filter(
         $db_item_list,
         create_function(
            '$val',
            'return (strtoupper($val) != strtoupper('.$num.'));'
         )
      )
   );
}