Why is PHP so red?
Recently PHP (Personal hypertext preprocessor) seems to have become the most widely used web-processing language in the past two years Linux/unix, and its convenience, powerful features and ╋ features make it increasingly eroding into traditional CGI is even the market for MicroSoft ASP (Active Server Page) ╋ almost every major website recruit talent to use PHP as the basic condition.
PHP does have this qualification can be so red ╋ reasons for the following points:
PHP is opensource software ╋ completely free ╋ can be freely scattered ╋ so attracts a lot of people to use ╋ also because ╋ attracts commercial companies to develop better engine and optimization software (refer to http://www.zend.com/).
PHP itself is very easy to understand ╋ simple instruction syntax ╋ plus some basic object-oriented processing power ╋ let novice enough in the shortest time to learn.
PHP provides a considerable amount of functionality ╋ includes math processing, string processing, network-related functions, support for various databases, image processing, and a large number of development people are developing a variety of new features for PHP ╋ extensibility is excellent.
PHP is very easy to combine with Apache ╋ as the Apache module to use ╋ Setup is quite simple ╋ also because Apache now occupies the Web Server global 60% Market ╋php naturally become the best match for Apache.
But the topic ╋ this time is not the application of PHP in Web design ╋ but rather the application of PHP in shell script ╋ generally known shell script is about TCSH, bash, perl or Python these languages ╋ all I'm going to talk about is PHP Used as Shell Script.
Installation of PHP execution files
Generally PHP as a web processing language is to be compiled into Apache module ╋ here of course not to do ╋ and therefore compiled very simple ╋ as long as root as the following actions:
Untie php-3.0.xx.tar.gz
CD PHP
Configure
Make
After compiling ╋ in the PHP directory there is an executable file ╋ file name Php╋ copy it to/usr/local/bin. Note ╋ If the file is too large ╋ you can use the strip instruction to remove unnecessary information from the PHP method ╋ so the file will be much smaller.
First Program
Start writing our first PHP Shell Script program ╋ This example prints "Hello world!":
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