Before embarking on scripts, you have to start at the beginning: the syntax of PHP. This part is essential; if you do not know the basics of language at the fingertips, you will lose a lot of time later.
PHP, The Web, What Is It? PHP, for PHP: Hypertext Preprocessor, is a programming language. There are many others, like C, Java, OCaml, but we can say that PHP is a programming language oriented for the Web or for websites.
For the record, PHP was born at the hand of RasmusLerdorf in 1994. At first very basic, it was made public in 1995 under the name of PHP / FI. Subsequently, the development passed from the hands of RasmusLerdorf to those of two students - ZeevSuraski and Andi Gutmans - who later founded Zend Technologies to promote PHP. If you develop applications with PHP, you will undoubtedly hear about Zend, whether through their framework, their development environment, or their server, respectively Zend Framework, Zend Studio, and Zend Server.