PHP Programming / PDF

PHP Programming / PDF

Sample of the pdf document :

What is PHP?

• PHP stands for PHP Hypertext Processor — A recursive definition!!.
• PHP is a server-side scripting language that is embedded in a web page or can be run as script (much Like Perl) from the command line (Full support since version 4.3)


PHP Characteristics:

The main characteristics of PHP are:
• PHP is web-specific and open source
• Scripts are embedded into static HTML files
• Fast execution of scripts
• Fast access to the database tier of applications
• Supported by most web servers and operating systems
• Supports many standard network protocols libraries available for IMAP, NNTP,
SMTP, POP3,
• Supports many database management systems libraries available for UNIX DBM,
MySQL, Oracle,
• Dynamic Output any text, HTML XHTML and any other XML file.
• Also Dynamic Output images, PDF files and even Flash movies
• Text processing features, from the POSIX Extended or Perl regular expressions
to parsing XML documents.
• A fully featured programming language suitable for complex systems
development


What can PHP do?
As we have just said PHP is a fully featured programming language
so it can do just about anything.
However it is best suited and is mainly focused on server-side
scripting, so you can do anything any other CGI program can do
such as:
• Collect form data,
• Generate dynamic page content,
• Send and receive cookies.



Three main uses of PHP:

Server-side scripting —This is the most traditional and main target field for PHP. You need three things to make this work:

• The PHP parser (CGI or server module),
• A web server —needs a connected PHP installation
• A web browser—access PHP page through URL
Command line scripting —You can make a PHP script to run without any server or browser. You only need the PHP parser to use it this way. These scripts can also be used for simple text processing
tasks similar to PERL

Writing client-side GUI applications —PHP is probably not the very best language to write windowing applications, but PHP-G

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PHP Programming / PDF