session-variables Archives

Check if PHP session has already started

I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that ...

May 3, 2022
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How do servlets work? Instantiation, sessions, shared variables and multithreading

Suppose, I have a webserver which holds numerous servlets. For information passing among those servlets I am setting session and instance variables. Now, ...

April 14, 2022
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