PHP command-line scripting Development _php Tutorial

PHP command-line scripting development

What PHP can do

PHP Official documents do not say PHP能做任何事 , this and the industry is widely circulated to the other programmers are not life is PHP是最好的语言 really distant call corresponding.

PHP is mainly used in the following three areas

(1) server-side scripting

This is the most important area, PHP parser (CGI or server module) and Web server (such as Apache, Nginx) with the use.

(2) Command line script

In this way, only the PHP parser is required to execute. Lenovo Python will understand.

(3) Desktop applications

With some extension libraries PHP-GTK you can use PHP to write desktop applications. But it's boring to do it.

Command line development

The following actions are performed under Mac

Enter the php directory, or php place the directory in an environment variable. (Mac ignores this step)

View PHP engine

php -v# 输出PHP 5.5.27 (cli) (built: Jul 23 2015 00:21:59) Copyright (c) 1997-2015 The PHP GroupZend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies

View Usage Help

php-h# output usage:php [options] [-f]
  
   [--]   [args ...] PHP [Options]-R
   [--] [args ...] PHP [Options] [-B  ]-R [-E  ] [--] [args ...] php [options] [-B  ]-F  [-E  ] [--] [args ...] php [options]-S:  [-t Docroot] php [Options]-[args ...] php [options]-a-a Run as interactive shell-c  |  Look for php.ini file in this directory-n No php.ini file'll be used-d Foo[=bar] Define INI entry foo with value ' Bar ' -e Generate extended information for debugger/profiler-f  Parse and Execute  . -H This help-i PHP information-l Syntax Check Only (lint)-M Show compiled in Modules-r Run PHPWithout using script tags -B  Run PHP  Before processing input lines-r Run PHPFor every input line-f  Parse and Execute  For every input line-e  Run PHP  After processing all input lines-h Hide any passed arguments from external tools. -S:  Run with built-in Web server. -T  Specify document Root   for built-in Web server.-S output HTML syntax highlighted source.-V Version number-w output source with str ipped comments and whitespace. -Z  Load Zend extension  . args ... Arguments passed to script. Use--args when first argument starts With-or script was read from stdin--ini Show configuration file names--rf  Show information about function  .--RC  Show information about class  .--re  Show information about extension  .--rz  Show information about Zend extension  .--ri  Show configuration for extension  .                                
  

执行一个PHP文件

php [-f] xxx.php

可以传参数

php [-f] xxx.php 'hello' 'world' 2015

传递给脚本的参数可在全局变量$argv中获取，全局变量$argc存有$argv数组中成员变量的个数(而非传送给脚本程序的参数的个数)

001.php

执行001.php

php 001.php 'hello world' 2015

输出

int(3)array(3) { [0]=> string(7) 001.php [1]=> string(11) hello world [2]=> string(4) 2015}

也可以直接运行 PHP 代码

php -r 'echo Hello World;'#输出Hello World

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