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How can the count of existing cookies be accurately determined in PHP?

To accurately determine the count of existing cookies in PHP, you can use the `count` function along with the `$_COOKIE` superglobal array. This function will return the number of elements in an array, which in this case will be the number of cookies set.

php 
// Count the number of existing cookies
$cookieCount = count($_COOKIE);

// Output the count of cookies
echo "Number of cookies set: " . $cookieCount;

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