Preserving State With Query Strings

Accessing Data in Query Strings in PHP

Accessing Data in Query Strings in PHP To access the field names and values in a query string you simply use the $_GET superglobal array function. Syntax $firstName = $_GET[“firstName”]; Example Here, we will illustrate an example which displays a sequence of Square numbers. Save the script as number_squaring.php in the document root folder, and run it …

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Creating a PHP Session

PHP Session new session, this function generates a unique SID for the session and sends it to the browser as a cookie called PHPSESSID (by default). However, if the browser has sent a PHPSESSID cookie to the server because a session already exists, session_start() uses this existing session: session_start();

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