in_array

(PHP 4 )

in_array -- Return TRUE if a value exists in an array

Description

bool in_array (mixed needle, array haystack, bool strict)

Searches haystack for needle and returns TRUE if it is found in the array, FALSE otherwise.

If the third parameter strict is set to TRUE then the in_array() will also check the types of the needle in the haystack.

Example 1. In_array() example

$os = array ("Mac", "NT", "Irix", "Linux");
if (in_array ("Irix", $os)){
    print "Got Irix";
    }
      

Example 2. In_array() with strict example


// This will output:

1.13 found with strict check
      

See also array_search().