PHP Development – MySQL

PHP Development - Introduction

Php Hypertext Processor • PHP stands for PHP: Hypertext Preprocessor • PHP is a server-side scripting language, like ASP • PHP scripts are executed on the server • PHP supports many databases (MySQL, Informix, Oracle, Sybase, Solid, PostgreSQL, Generic ODBC, etc.) • PHP is an open source software

Php Hypertext Processor

Php Hypertext Processor

Php Hypertext Processor

Php Hypertext Processor

Taken from Udemy.com

Php Hypertext Processor

Taken from Udemy.com

Php Hypertext Processor

• PHP files can contain text, HTML tags and scripts • PHP files are returned to the browser as plain HTML • PHP files have a file extension of ".php“ (most common), ".php3", or ".phtml"

Php Scripts • Php script starts with • Php script can be placed anywhere in document • File ends in .php • Each instruction must end with a semicolon ; • Semicolon acts as a separator between instructions

Hello World 

Hello World  Hello World!

Comments • Comments help make code more readable/understandable • Beneficial for third party to understand code • Ignored by compiler • Use // to create a single line comment

• Use /* ….. */ to create a multiple line comment

Comments

Outputting Strings • The echo() function outputs one or more strings

• The print() function can also be used • echo() is faster than print() This text spans multiple lines.

Outputting Strings