PHP Removing elements from an array

I am new to PHP and I need a function that enables me to remove an item from an array.

So far I have:

 $ab = milk
 $ba = apple
 $ca = bread

 array($ab, $ba, $ca).

Is there a function or method available to delete $ba from the list?

      I.e  if (condition)==true

     array_delete ($ab): ($ab, $ba, $ca)

Obviously the above does not work, or exist, but I am looking for something like it that does exist.

Any help would be huugely appreciated!

Thanks

Answer

you can try this:

$ab = milk;
$ba = apple;
$ca = bread;

$arr=array($ab, $ba, $ca);

if (in_array($ba, $arr))
{
unset($ba);
}

hope this may help you..