how can i use $_COOKIE[] PostID to execute the below code?

1. How will you set cookies using PHP?
2. How can a cookie be created and destroyed in PHP?
3. How do I set a cookie path?
4. What is cookie explain with example?
5. What is $_ cookie in PHP?
6. Where is PHP code executed?
7. Does PHP session use cookies?
8. How do I check if a session exists?
9. Can we draw images using PHP?
10. What is path in set-cookie?
11. Can I set-cookie for another domain?
12. How do I pass cookies in the header?

How will you set cookies using PHP?

Setting Cookie In PHP: To set a cookie in PHP,the setcookie() function is used. The setcookie() function needs to be called prior to any output generated by the script otherwise the cookie will not be set. Syntax : setcookie(name, value, expire, path, domain, security);

How can a cookie be created and destroyed in PHP?

In PHP, we can set cookies by using setcookie(), setrawcookie() or header() function. setrawcookie() is same as setcookie(), but differs by setting the raw value of the cookie with the header without encoding. These function must be used before sending any output to the browser.

How do I set a cookie path?

Cookie options:

1. path=/ , by default current path, makes the cookie visible only under that path.
2. domain=site.com , by default a cookie is visible on the current domain only. ...
3. expires or max-age sets the cookie expiration time. ...
4. secure makes the cookie HTTPS-only.

What is cookie explain with example?

Cookies are text files with small pieces of data — like a username and password — that are used to identify your computer as you use a computer network. Specific cookies known as HTTP cookies are used to identify specific users and improve your web browsing experience.

What is $_ cookie in PHP?

A cookie is often used to identify a user. A cookie is a small file that the server embeds on the user's computer. Each time the same computer requests a page with a browser, it will send the cookie too. With PHP, you can both create and retrieve cookie values.

Where is PHP code executed?

PHP code is executed on the server.

Does PHP session use cookies?

Yes. PHP sessions rely on a cookie containing a session key. Your session data are stored only on your server, but a unique ID is assigned to each session and that ID gets saved in a cookie.

How do I check if a session exists?

If $_SESSION (or $HTTP_SESSION_VARS for PHP 4.0. 6 or less) is used, use isset() to check a variable is registered in $_SESSION .
...

1. PHP_SESSION_DISABLED if sessions are disabled.
2. PHP_SESSION_NONE if sessions are enabled, but none exists.
3. PHP_SESSION_ACTIVE if sessions are enabled, and one exists.

Can we draw images using PHP?

You can draw rectangles over an image using the imagerectangle($image, $x1, $y1, $x2, $y2, $color) function. ... Another function called imageopenpolygon() has been added to PHP 7, which does not draw a line between the first and last point.

What is path in set-cookie?

Set a cookie path

The path parameter specifies a document location for the cookie, so it's assigned to a specific path, and sent to the server only if the path matches the current document location, or a parent: document.

Can I set-cookie for another domain?

As you may know, cookie can't be set in a different domain from another domain directly. If you're having multiple sites in where you need to set a cookie from a parent site, you can use basic HTML and JS to set the cookies. Google is using this same way.

How do I pass cookies in the header?

Creating cookies. After receiving an HTTP request, a server can send one or more Set-Cookie headers with the response. The cookie is usually stored by the browser, and then the cookie is sent with requests made to the same server inside a Cookie HTTP header.