Pass variables between two PHP pages without using a form or the URL of page

Question

I want to pass a couple of variables from one PHP page to another. I am not using a form. The variables are some messages that the target page will display if something goes

Answer 1

Here are brief list:

• JQuery with JSON stuff. (http://www.w3schools.com/xml/xml_http.asp)

• $_SESSION - probably best way

• Custom cookie - will not *always* work.

• HTTP headers - some proxy can block it.

• database such MySQL, Postgres or something else such Redis or Memcached (e.g. similar to home-made session, "locked" by IP address)

• APC - similar to database, will not *always* work.

• HTTP_REFERRER

• URL hash parameter , e.g. http://domain.com/page.php#param - you will need some JavaScript to collect the hash. - gmail heavy use this.