PHP Cookies for All Pages on a Domain

PHP Cookies for Entire Domain

A problem that exists when setting cookies is accessing the cookies on various urls such as: mydomain.com, http://mydomain.com and http://www.mydomain.com

Unfortunately, if you want a cookie(s) to be accessible on all directories in the domain regardless of what is inserted into the browser, you need to set the cookie properly.

For example, if a cookie is set on a url like mydomain.com, it can be accessed on any other page in the domain if the address in the browser began with mydomain.com (ie. mydomain.com/directorya). The code for this example is:
setcookie(“my_cookie_name”, $var, time()+ 14400, ‘/’, ‘.mysite.com’);

But, if you want to access the cookie no matter how the url is presented in the browser, you would use:
setcookie(“my_cookie_name”, $var, time()+ 14400, ‘/’, ‘.mysite.com’);

The latter code above sets a cookie called my_cookie_name that remains usable for 2 hours. If you wanted to pull the data from the cookie it would actually be the value $var.

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PHP Cookies for Entire Domain

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