Mattias Thorslund wrote:
Robert P. J. Day wrote:
  (just a warning -- as a relative newbie to PHP, i'll probably have
the occasional dumb question.  just humour me.)

  i'm looking at some existing PHP code that accesses a mysql 5.0 db,
and it's coded using the mysql-specific calls:  mysql_connect,
mysql_select_db, etc, etc.

  is there any reason i *wouldn't* want to rewrite that code using the
more general PEAR DB module, and use mysqli?  certainly, as i read it,
using the PEAR DB module would make it easier down the road if i
suddenly decide to change the DB backend.

  anyway, any compelling arguments for or against?


Well, the reason you shouldn't use PEAR DB in a new project is that it's being deprecated. MDB2 is the PEAR successor, and does provide emulation for some features that don't exist on all database platforms, such as LastInsertID. It can also help you convert your database from one platform to another, since it also provides methods for detecting and managing the database structure itself (the Manager and Reverse modules).

That said, if I were to start a new project at this time, I would look closer at whether PDO fits my needs.

I use MDB2.
I hear PDO hyped a lot, what does it really give me that MDB2 does not, other than making the application dependent upon a binary module?

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