Using Cookie Variables in PHP
Setting cookies in php is pretty straight forward. There is a php function:
setcookie();This function must be called before any anything else on the page or it will fail. There are two options to address this.
Use ob_start to Buffer content
- You can either make sure that setcookie() is the first thing you call in your script - which is often just not a possibility.
- Or, You can use the ob_start() and ob_end_flush() functions.
ob_start() and ob_end_flush() will buffer the content on a page until after the setcookie() variable has been created.
Expire Value is a Unix Timestamp
The expire value for php cookies must be a UNIX time-stamp:
Use the php time() function
time() + 1800_____30min
time() + 900______15min
time() + 450______7.5 min
time() + 225______3.25 min
time() + 112.5____1.125 min
time() + 56.25____.625 = 37.5 sec.
The rest of your script goes here
// Here you set the cookie
// The cookie is called logged_in and can be found
// in the directory that your browser keeps cookies.
setcookie('logged_in' , $cookieVal ,(time() + 3600)) or die('no cookie');
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