PHP

PHP: Hypertext Preprocessor
Originally called “Personal Home Page Tools”
Popular server-side scripting technology
Open-source
Anyone may view, modify and redistribute source code
Supported freely by community
Platform independent
Basic application
Scripting delimiters
<? php ?>
Must enclose all script code
Variables preceded by $ symbol
Case-sensitive
End statements with semicolon
Comments
// for single line
/* */ for multiline
Filenames end with .php by convention