multiple arrays

[pikemsu28]

i have a form that has multiple arrays.  I know the basics on how to explode an array:

 

$array = explode('<>', $array);
for ($i="0"; $i<count($array); $i++)//check for empty string for term
{ 
	if(empty($array[$i])) 
	{
		unset($array[$i]);
	} 
}

 

what i want to do is turn this into a function so every array that i have i can call this function and not have to repeat the same 'for loop' for every array.  i haven't worked much with functions so a nice tutorial or a demo would be greatly appreciated. 

[Balmung-San]

<?php
function foo(&$array)
{
//insert your loop code here
}
?>

 

That will modify the array. I'm assuming you're only going to put the loop code in there.

 

Then once you get an explode the array just call "foo($array);", and your array will be modified.

[pikemsu28]

i will be able to use that function multiple times on one form right? 

 

function foo(&$array)
{
$unit = explode('<>', $unit);
for ($i="0"; $i<count($unit); $i++)//check for empty string for term
{ 
	if(empty($unit[$i])) 
	{
		unset($unit[$i]);
	} 
}
}
foo($array1); //able to echo the values in this array
foo($array2); //able to echo the values in array 2
so on an so forth??

[Balmung-San]

Actually, you're a bit off. $unit is not the variable you want to use in the function. You want to use $array. $unit is an undefined variable, while $array is an argument passed to the function.

 

foo($array1); will push $array1 through the process, unsetting all empty variables in the array. Though I don't know why you're calling explode inside the function. You can't explode an array.