Composer 是 PHP 中用来管理依赖(dependency)关系的工具。你可以在自己的项目中声明所依赖的外部工具库( libraries )， Composer 会帮你安装这些依赖的库文件。 PHP Composer 安装 系统需求： Composer 需要PHP5.3.2+ 以上的环境来运行。有几个敏感的PHP设置
Composer 是PHP中用来管理依赖(dependency)关系的工具。你可以在自己的项目中声明所依赖的外部工具库(libraries)，Composer会帮你安装这些依赖的库文件。
系统需求：
Composer 需要PHP5.3.2+ 以上的环境来运行。有几个敏感的PHP设置和编译标志也是必需的，但安装程序会发出警告当存在任何不兼容的情况。
比如PHP的扩展的要求是，安装或重新编译php without –disable-phar
为了从源地址安装软件包，而不是简单的压缩文件包，您将需要安装软件包的版本控制工具，比如git、svn或hg等。
Composer 是兼容多平台的，其运行适用于Windows，Linux和OSX。
安装失败的错误消息：
curl -sS https://getcomposer.org/installer | PHP
#!/usr/bin/env php
some settings on your machine make Composer unable to work properly.
Make sure that you fix the issues listed below and run this script again:The phar extension is missing.
Install it or recompile php without –disable-pharYour PHP (5.2.9) is too old, you must upgrade to PHP 5.3.2 or higher.
我的本地默认开发环境是PHP 5.2.9，当我尝试在PHP 5.2.9上安装时，提示版本过低，需要升级到PHP 5.3.2 或者更高的版本。
于是我下载XAMPP 1.7.7 usb lite 版本。
E:\USB\Dropbox\phpstorm\php53>E:\USB\xampp_177\php\php.exe -v
PHP 5.3.8 (cli) (built: Aug 23 2011 11:50:20)
Copyright (c) 1997-2011 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies
XAMPP 1.7.7 下的PHP环境是5.3.8。确认我的PHP环境大于等于PHP5.3.2后。
PHP 5.3 安装 Composer
E:\USB\Dropbox\phpstorm\php53>curl -sS https://getcomposer.org/installer | E:\USB\xampp_177\php\php.exe
#!/usr/bin/env php
Some settings on your machine may cause stability issues with Composer.
If you encounter issues, try to change the following:The openssl extension is missing, which will reduce the security and stability o
f Composer.
If possible you should enable it or recompile php with –with-opensslDownloading…
Composer successfully installed to: E:\USB\Dropbox\phpstorm\php53\composer.phar
Use it: php composer.phar
注意：
curl -sS https://getcomposer.org/installer | /usr/php/53/usr/bin/php
安装完成后，检查安装版本。
E:\USB\Dropbox\phpstorm\php53>E:\USB\xampp_177\php/php.exe composer.phar -V
Composer version 0209bd31a0ac3aeb2a68fc81e2d03c71072bef33
检查PHP Composer命令：
E:\USB\Dropbox\phpstorm\php53>E:\USB\xampp_177\php/php.exe composer.phar
______
/ ____/___ ____ ___ ____ ____ ________ _____
/ / / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__ ) __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
/_/
Composer version 0209bd31a0ac3aeb2a68fc81e2d03c71072bef33Usage:
[options] command [arguments]Options:
–help -h Display this help message.
–quiet -q Do not output any message.
–verbose -v Increase verbosity of messages.
–version -V Display this application version.
–ansi Force ANSI output.
–no-ansi Disable ANSI output.
–no-interaction -n Do not ask any interactive question.
–profile Display timing and memory usage information
–working-dir -d If specified, use the given directory as working directory
.Available commands:
about Short information about Composer
archive Create an archive of this composer package
config Set config options
create-project Create new project from a package into given directory.
depends Shows which packages depend on the given package
diagnose Diagnoses the system to identify common errors.
dump-autoload Dumps the autoloader
dumpautoload Dumps the autoloader
help Displays help for a command
init Creates a basic composer.json file in current directory.
install Installs the project dependencies from the composer.lock file
if present, or falls back on the composer.json.
list Lists commands
require Adds required packages to your composer.json and installs the
m
run-script Run the scripts defined in composer.json.
search Search for packages
self-update Updates composer.phar to the latest version.
selfupdate Updates composer.phar to the latest version.
show Show information about packages
status Show a list of locally modified packages
update Updates your dependencies to the latest version according to
composer.json, and updates the composer.lock file.
validate Validates a composer.json
这样我们在PHP5.3环境下的Composer已经安装完成。
类似的方法我们也可以安装PHP 5.4的环境上。
(...)
Read the rest of PHP Composer 安装与使用 (580 words)
© lixiphp for LixiPHP, 2013. | Permalink | No comment |
Add to del.icio.us
Post tags: Composer, PHP, PHP 5.3, PHP 5.4, Symfony, XAMPP, 依赖管理工具
Feed enhanced by Better Feed from Ozh
