Description:
------------
The specified code produces, at least as I see it, a false positive.
Needle and haystack values are of the same type and the matching value has a different last character. 

When I enforce the type test by setting the strict parameter to true,
the result is correct : Not found.

(I tested this on different PHP 4.X and 5.X installations on Windows and Linux, all produce the same result)



Reproduce code:
---------------
 $arr_ean=array('333333333333333333','541448820060826105','444444444444444444');
 
 $pos=array_search('541448820060826106',$arr_ean); 
 
 if($pos===FALSE) {  
  echo "Not found";  
 } else {
  echo "Found at key : $pos";  
 }

Expected result:
----------------
Not found

Actual result:
--------------
Found at key : 1