by: Mark Alexander Bain
The web site designer often needs to obtain information from the web site user. For example they may need to know:

The user name and password of the user (when logging in)
Details about the user when registering (such as the proposed user name and password)
Details about products when ordering on line (such as [...]

by: Mark Alexander Bain
It’s very easy to send SQL queries to a MYSQL database and process the results (see How to Run MySQL Queries with PHP). However, running a number of queries one after another can be time consuming and memory intensive.
Fortunately PHP enables the programmer to run a number of queries at the same [...]