Category Archives: PHP

MySQLi

MySQLi is an improved version of the older PHP MySQL driver, offering various benefits.

The developers of the PHP programming language recommend using MySQLi when dealing with MySQL server versions 4.1.3 and newer

The MySQLi extension provides various benefits with respect to its predecessor, the most prominent of which  are:

  • An object-oriented interface
  • Object Mapping
  • Support for prepared statements
  • Support for multiple statements
  • Support for transactions
  • Enhanced debugging support
  • Embedded server support
  • More powerful Functionality
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Magic Methods

The “magic” methods are ones with special names, starting with two underscores, which denote methods which will be triggered in response to particular PHP events. That might sound slightly automagical but actually it’s pretty straightforward, we already saw an example of this in the last post, where we used a constructor – so we’ll use this as our first example.

PHP functions that start with a double underscore – a “__” – are called magic functions (and/or methods) in PHP. They are functions that are always defined inside classes, and are not stand-alone (outside of classes) functions. The magic functions available in PHP are: __construct(), __destruct(), __call(), __callStatic(), __get(), __set(), __isset(), __unset(), __sleep(), __wakeup(), __toString(), __invoke(), __set_state(), __clone(), and __autoload().

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Redis

Redis is a data structure server. It is open-source, networked, in-memory, and stores keys with optional durability.

Redis is an open source, BSD licensed, advanced key-value cache and store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets, sorted sets, bitmaps and hyperloglogs.

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