Why did we use Magic Quotes
Disabling Magic Quotes
Magic Quotes
PHP Manual

## Why not to use Magic Quotes

Warnung

Dieses Feature ist seit PHP 5.3.0 DEPRECATED (veraltet) und wird in PHP 6.0.0 ENTFERNT. Sich auf dieses Feature zu verlassen ist in keiner Weise empfehlenswert.

- Portability Assuming it to be on, or off, affects portability. Use get_magic_quotes_gpc() to check for this, and code accordingly.
- Performance Because not every piece of escaped data is inserted into a database, there is a performance loss for escaping all this data. Simply calling on the escaping functions (like addslashes()) at runtime is more efficient. Although php.ini-dist enables these directives by default, php.ini-recommended disables it. This recommendation is mainly due to performance reasons.
- Inconvenience Because not all data needs escaping, it's often annoying to see escaped data where it shouldn't be. For example, emailing from a form, and seeing a bunch of \' within the email. To fix, this may require excessive use of stripslashes().

Why did we use Magic Quotes
Disabling Magic Quotes
Magic Quotes
PHP Manual