Speaker: Hsiang-Ting Fang 1

What is PHP. History of PHP. Variables Data type Examples*4 Reference Exercise*3 2

PHP: Hypertext Preprocessor. Scripting language. Can be embedded into HyperText Markup Language ( HTML). Server-client structure. 3 [1]

PHP/FI  Created by Rasmus Lerdorf in 1995  Personal Home Page Tools  Perl script PHP2  PHP: Hypertext Preprocessor  C language 4

Must start with “$”. Other name rules are the same as C. External variable  GET/POST  COOKIE  SESSION Internal variable  phpinfo(); phpinfo();  SERVER 5

Support these data type 6 Data type How to use Integer$a = 123; $a = 0123; // Octal $a = 0x12; // Hex Float$a = 1.234; $a = 1.2e3; Array$b[0][] = 567.8; $c = array(9, 10, 'A'); String$a = ‘Hello World.’; $a = “Hello world!” ; Objectclass foo { function do_foo () { echo “Doing foo.”; } } $bar = new foo; $bar -> do_foo ();

<?php /* Edited by Claudia July 21, 2011 */ $tmp = "Hello world!" ; //This is a string echo $tmp ; #print the variable ?> 7

php <?php $an1 = "dog"; $an2 = "cat"; $an3 = "bird"; echo "What I like is a $an3. "; echo 'What I like is a $an3. ' ; echo $an1." hates ". $an2."." ; ?> 8

php Hello World! \n"; ?> 9

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What is the difference between POST and GET.( Example4)Example4 Show the 9*9 multiplication table like this link.link Using PHP and from to find out the greatest common divisor. linkfromlink 12