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Oracle Tips by Burleson 

session_registery

(PHP 4 , PHP 5)

session_register -- Registers one or more global variables with the current session.

Description

bool session_register( mixed name [, mixed ...])

session_register() accepts a variable number of arguments, any of which can be either a string holding the name of a variable or an array consisting of variable names or other arrays. For each name, session_register() registers the global variable with that name in the current session.

M Warning: For a script to work regardless of register_globals, use the $_SESSION array as $_SESSION entries are automatically registered. If a script uses session_register(), it will not work in environments where the PHP directive register_globals are disabled.

Since PHP 4.2.0, the default value for the PHP directive register_globals is off. The PHP community encourages users not to rely on this directive but instead use other means, such as the superglobals.

M    Warning: This registers a global variable. To register a session variable from within a function, make it global using the global keyword or the $GLOBALS[] array, or use the special session arrays as noted below. If using $_SESSION (or $HTTP_SESSION_VARS), do not use session_register(), session_is_registered(), and session_unregister()

This function returns TRUE when all of the variables are successfully registered with the session.

If session_start() was not called before this function is called, an implicit call to session_start() with no parameters will be made. $_SESSION does not mimic this behavior and requires session_start() before use.

Also create a session variable by simply setting the appropriate member of the $_SESSION or $HTTP_SESSION_VARS (PHP < 4.1.0) array.

Register_globals is a deprecated configuration directive which was used to automatically register any global variable with the started session. It was very convenient and very insecure. Users would open two unrelated scripts from the same browser session, and inadvertently share data and set incorrect starting values.

PHP 5, the latest version, is shipped with register_globals set to OFF. The best option is to leave it that way and use the $_SESSION array in the same way shown in the example7b. Can it get any better than this; should there be a character to use $_SESSION array?  It turns out that there is a function called “extract” that makes life more livable. Here is what the manual says:

See code depot for complete scripts


The above book excerpt is from:

Easy Oracle PHP

Create Dynamic Web Pages with Oracle Data

ISBN 0-9761573-0-6   

Mladen Gogala

http://www.rampant-books.com/book_2005_2_php_oracle.htm

 

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