Checking whether an array contains duplicate values or not

array_check_duplicate.php

<?php

# Let's define a simple array to display the function
$array = array("How", "Now", "Brown", "Cow", "With", "The", "Brown", "Fox");

# Check if it contains a duplicate value?
if ( count($array) !== count(array_unique($array)) )
{
    echo "Contains Duplicate";
} 

# What if it doesn't contain a duplicate value, what then?
else 
{
    echo "Does not contain a duplicate";
}

?>