what am I doing wrong with this function

[devWhiz]

<?php
$a = array(3, 4, 18, 15);
$b = array(12, 10, 11, 24);
$c = array(5, 6);
$d = array(7, 8, 13);
$e = array(19, 16);

function test($ID)
{
	if(in_array($ID, $a))
	{ echo "a"; }
	if(in_array($ID, $b))
	{ echo "b"; }
	if(in_array($ID, $c))
	{ echo "c"; }
	if(in_array($ID, $d))
	{ echo "d"; }
	if(in_array($ID, $e))
	{ echo "e"; }	
}

$test = 3;

test($test);
?>

 

Why doesn't that echo "a"

 

I don't really get what I am doing wrong, any help is appreciated

[salathe]

Have a read of the variable scope section of the manual. If you still aren't sure what is happening, let us know; though that page should make everything clear.

[devWhiz]

$GLOBALS[] was the fix, Thank you!

[jcbones]

Globals is never the fix, and should be depreciated IMHO.

 

Either build the arrays inside the function, or pass them as arguments.  Setting Globals defeats the purpose of a function, as you have now tied the function to a specific instance, and can no longer use the function, if one of the globals doesn't exist in the script.