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Which of the following is an associative array of variables passed to the current script via HTTP cookies?

Question

Which of the following is an associative array of variables passed to the current script via HTTP cookies?

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Solution

The associative array of variables passed to the current script via HTTP cookies is $_COOKIE in PHP.

Here's a step-by-step explanation:

  1. An associative array is a collection of data where each value is associated with a unique key. In PHP, you can create an associative array using the array() function or the [] syntax.

  2. HTTP cookies are small pieces of data stored on the user's computer by the web browser while browsing a website. They are used to remember stateful information (like items in a shopping cart) or to record the user's browsing activity.

  3. In PHP, you can access the data stored in cookies through the $_COOKIE superglobal array. This array is automatically created by PHP, and it holds all the cookies that are currently accessible by the script.

  4. Each key in the COOKIEarraycorrespondstoacookiename,andtheassociatedvalueisthedatastoredinthecookie.Forexample,ifyouhaveacookienamed"username"withthevalue"John",youcanaccessthisdatainPHPwith_COOKIE array corresponds to a cookie name, and the associated value is the data stored in the cookie. For example, if you have a cookie named "username" with the value "John", you can access this data in PHP with _COOKIE["username"], which would give you the value "John".

  5. Therefore, the $_COOKIE superglobal array in PHP is an associative array of variables passed to the current script via HTTP cookies.

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