~~TOC~~ // // Lab46 Tutorials PHP Hyper Text Preprocessor PHP (Personal Home Page) is a scripting language used to produce dynamic web pages. It is put into html pages to give them more functionality. There is no compiling necessary, the web server interprets the code at run time. ===== First Web Page with PHP ===== ===== Basic Commands ===== ==Variables and Comments== *$ - variables (do not need to be declared) */ / - comments ==Common Functions== * if () - decision *else () - alternate to if *eval () - evaluate text string *Array () - creat an array *time () - outputs time *date () - formats time output *echo () - output to page *include () - include external files *system () - call the system to execute a command *shell_exec - call the system to execute a command ==Regular Expressions== */ - escape character *^ - start of string *$ - end of string *. - and single character *a? - 0 or one of a *a* - 0 or more of a *a+ - 1 or more of a *(y|z) - y or z *(...) - group selection *[xyz] - range *[^xyz] - ont in range ===== links ===== *www.w3schools.com