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PHP is a recursive acronym, which stands for "PHP: Hypertext Preprocessor".
To quote from php.net :
"PHP is a widely-used general-purpose scripting language that is especially suited
for Web development and can be embedded into HTML."
What this means in simple English is that it's useful in the development of interactive websites,
often incorporating MySQL databases. Many web hosting servers have PHP and MySQL as part of their
hosting packages, making their use effectively free.
If we think of what you see in your browser as the "front end",
then PHP operates at the "back end" where the on-line database is stored.
If you really want to know more about the technical stuff, there is an
introductory tutorial.
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Using interactive website techniques. we can to set up applications like theatre or restaurant bookings,
on-line ordering and accounting - or anything where we need to process a request against a database and
respond to the user immediately.
And it doesn't really matter whether this is over the
internet or on an intranet (your organisation's own
network).
This solves a long standing problem by opening up easy
access from multiple branches across town or across the
world! Excellent security features allow you to
restrict access to people with appropriate authority.
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