PHP5 web programming.pdf

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296126490 UNPDF
Web Programming
with PHP 5
“The right tool for the right job.”
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PHP as an Acronym
PHP
“PHP: Hypertext
Preprocessor”
This is called a “Recursive Acronym”
GNU? “ G NU’s N ot U nix!”
CYGNUS? “ C YGNUS is Y our GNU S upport”
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Why the Name Matters
PHP
“PHP: Hypertext
Preprocessor”
Hypertext is just HTML
“Preprocessor” is important for PHP
Similar to C++
Preprocessor...
Lexical Substitution
Conditions and File Includes
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How PHP Works
WEB SERVER
The purpose of a web server
is precisely to send HTML to
the browser!
Source File
PHP
Apache/
IIS
HTML
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Why do we care?
100% Platform-Independent for the user
No additional style or content-arrangement concerns
Intelligent application design: How much is done by server?
Understand: Goofy animations are done with Javascript, Flash,
whatever. PHP is for page content.
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