map Size in PHP

In PHP, you can use the count() function to get the size of a hash (or an associative array). Here is an example:

$hash = array(
    "apple" => 3,
    "banana" => 5,
    "orange" => 2
);
$size = count($hash);

echo "The size of the hash is: " . $size;

Output:

The size of the hash is: 3

In the above example, we first defined a hash with three key-value pairs (or elements). We then used the count() function to get the size of the hash, which is 3 in this case. Finally, we printed the size using the echo statement.