Archimedes
Jul 28 2008, 11:37 AM
First off, we need to meet each other. I am Archimedes! xD I chose this name because I have a joy for mathematics and calculators and such. Archimedes is the man who discovered Pi(3.14159). Things you should know before we start Lesson #1. 1.HTML 2.General scripting knowledge or what it actually does. Alright, to the PHP lessons.1.PHP stands for PHP; Hypertext Preprocessor. 2.PHP is used all around the world to build dynamic web pages and web sites. Basic Syntax1. All PHP scripts start with the<?php or <? tag. I'd use the <?php tag just to be a little bit more tidy, just my opinion though. 2. To write something in PHP, we use the 'echo' or 'print' statement, like so. CODE <?php
echo "Hello Astahost!";
?> Output: Hello Astahost! 3. All PHP statements end with a semicolon(  .(In italics in the first code snippet.) Comments4. To type comments in PHP we use // for one line comments or /* */ to make a comment block, like in this example. Comments DO NOT end with a semicolon. CODE <?php
//This is a one lined comment(has no effect on the script, whatsoever)
echo "Hello Astahost!";
/*
This
is a
Comment block(has no effect on the script, whatsoever)
*/
?> Output: Hello Astahost! Variables5. At school, you use variables to substitute for numbers. Like, 4f + f = d. f=2, therefore 4*2+2=10. d=10. 6. In PHP, variables are 'saved' with the USD sign($). CODE <?php
$text = "Hello";
$number = 4;
echo $text;
?> Output: Hello 8. To type 2 variables after each other, you'd separate them with '. " " .', like so. CODE <?php
$text = "Hello";
$number = 4;
echo $text . " " . $number;
?> Output: Hello 4 OperatorsOperator - Name - Ex. - Output+ - Addition - x=2. 4 + x - 6 - - Subtraction - x=2. 4 - x - 2 * - Multiplication - x=2. 4 * x - 8 / - Division - x=2. 4 / x - 2 For a list of all operators, click here. That's it for our first lesson, see ya soon! The Human Calculator, Archimedes
Reply
yordan
Jul 28 2008, 12:55 PM
Nice tuto, thanks. Just a stupid question. You say "PHP stands for PHP; Hypertext Preprocessor." How do you make php with Hypertext Preprocessor ? It should sound more like hpp ?
Reply
FirefoxRocks
Jul 28 2008, 07:02 PM
QUOTE(yordan @ Jul 28 2008, 07:55 AM)  Just a stupid question. You say "PHP stands for PHP; Hypertext Preprocessor."
How do you make php with Hypertext Preprocessor ? It should sound more like hpp ? PHP = PHP: Hypertext Preprocessor http://en.wikipedia.org/wiki/Recursive_acronym
Reply
yordan
Jul 28 2008, 08:18 PM
QUOTE(FirefoxRocks @ Jul 28 2008, 09:02 PM) Now I see : QUOTE PHP — PHP: Hypertext Preprocessor (originally "Personal Home Page" tools, officially changed for PHP 3 "Personnal Home Pages" is understandable for PHP, it's a nice historical explanation.
Reply
ozgur
Sep 14 2008, 10:39 AM
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