CoolApps (2014-06-02 17:38:16)

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The code below is the base of how this will work.
If you're going to use cookies, you MUST sanitize the cookie output using functions such as mysqli_real_escape_string() and stripslashes(), anyway, this isn't a guide showing you how to avoid SQL Injections and such so moving on...



As you can see, we're using a IF statement and a global variable ($_) to do the job.
What this basically does is check if the cookie assigned to your site called "username" doesn't exist (thanks to "!" meaning false), if the cookie doesn't exist then it'll execute the code within.
As stated in the PHP comment next to "exit();", it cuts off the rest of the script below, so if there is a vital part of a PHP script which needs executing regardless, place it above this script!



Another PHP tutorial by me.

This post has been edited one or more times, the last time was:
2014-06-03 00:41:07

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CoolApps (2014-06-04 14:39:19)

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This is a web sub-forum after all, so people could save their time searching the interwebs.
Yes, this is basic, but this is just an example of how you would use it in a IF statement, nothing more, nothing less.

Expect it to be easy, it's for the first timers.

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