We register a variable with register() function.
We can unregister the variable with unregister() function.
To fetch the registry variable, we use registry() function.
We can store anything in the registry variable. It can be integer, string, array, etc.

In the example below, I will be showing you how to create, fetch and destroy registry variable. In other words, I mean how to register, fetch and unregister variables in Magento.

Here, I will be registering store id (integer). The variable key will be ‘store_id‘.

Mage::register('store_id', Mage::app()->getStore()->getId());

Mage::app()->getStore()->getId() gives the current store id.

The key of our newly created variable is ‘store_id’. To fetch the newly registered variable, we will use the following code:

Mage::registry('store_id');

We will destroy/unregister the variable when we no longer need it.

Mage::unregister('store_id');

Hope this helps and thanks for reading :-)

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But i got feedback that it was a bit complex for novice users of PHP (users who have just started PHPing). It was a kind of full-fledge system with PHP, MySQL and session.

So in this article, I have simplified the same functionality of the above tutorial. I have not used session in this case. If you want tutorial about session, login, and register then you can refer to my previous article (the link which is provided above).

Files included in this tutorial/code:

users.sql = This contains sql queries to make MySQL database and table

config.php = contains the database connection code (this file is included in all the php pages with the include() function)

index.php = contains the display part (displaying data from database)

add.html = contains form to add data

add.php = contains php code to add data

edit.php = contains php code to edit data

delete.php = contains php code to delete data

Download full source code: Create, read, update, delete in php and mysql

Cheers,

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The description is present in the code.. in comments :D I hope those comments are sufficient to describe the code. The database part is in the sql file named ‘database.sql’.

I have attached the code with this post. Download it and enjoy PHPing…

Download full source code: PHP code for add,edit,delete,login, and register

Cheers,

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