Composer 是 PHP 中用來管理依賴(dependency)關(guān)系的工具。你可以在自己的項(xiàng)目中聲明所依賴的外部工具庫( libraries )， Composer 會(huì)幫你安裝這些依賴的庫文件。 PHP Composer 安裝 系統(tǒng)需求： Composer 需要PHP5.3.2+ 以上的環(huán)境來運(yùn)行。有幾個(gè)敏感的PHP設(shè)置

Composer 是PHP中用來管理依賴(dependency)關(guān)系的工具。你可以在自己的項(xiàng)目中聲明所依賴的外部工具庫(libraries)，Composer會(huì)幫你安裝這些依賴的庫文件。

PHP Composer 安裝

系統(tǒng)需求：

Composer 需要PHP5.3.2+ 以上的環(huán)境來運(yùn)行。有幾個(gè)敏感的PHP設(shè)置和編譯標(biāo)志也是必需的，但安裝程序會(huì)發(fā)出警告當(dāng)存在任何不兼容的情況。

比如PHP的擴(kuò)展的要求是，安裝或重新編譯php without –disable-phar

為了從源地址安裝軟件包，而不是簡單的壓縮文件包，您將需要安裝軟件包的版本控制工具，比如git、svn或hg等。

Composer 是兼容多平臺(tái)的，其運(yùn)行適用于Windows，Linux和OSX。

安裝失敗的錯(cuò)誤消息：

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-phar

Your PHP (5.2.9) is too old, you must upgrade to PHP 5.3.2 or higher.

我的本地默認(rèn)開發(fā)環(huán)境是PHP 5.2.9，當(dāng)我嘗試在PHP 5.2.9上安裝時(shí)，提示版本過低，需要升級(jí)到PHP 5.3.2 或者更高的版本。

于是我下載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環(huán)境是5.3.8。確認(rèn)我的PHP環(huán)境大于等于PHP5.3.2后。

PHP 5.3 安裝 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-openssl

Downloading…

Composer successfully installed to: E:\USB\Dropbox\phpstorm\php53\composer.phar
Use it: php composer.phar

注意：

• 我關(guān)閉了XAMPP 1.7.7 Apache的SSL模塊，所以Composer提示我警告，為了安全因素建議我開啟SSL模塊。不開啟也不影響使用。
• 安裝時(shí)的參數(shù) | PHP，一定要更改為真實(shí)的PHP環(huán)境路徑，比如 | E:\USB\xampp_177\php\php.exe
• 使用Composer為PHP路徑 + 命令，在我們安裝的環(huán)境中，使用方法為：E:\USB\xampp_177\php/php.exe composer.phar 命令。
• 我安裝的環(huán)境是在Windows下，如果在Linux下，而PHP 5.3 環(huán)境也不在默認(rèn)PHP命令下時(shí)，應(yīng)該采用 | /usr/php/53/usr/bin/php，例如：

curl -sS https://getcomposer.org/installer | /usr/php/53/usr/bin/php

安裝完成后，檢查安裝版本。

E:\USB\Dropbox\phpstorm\php53>E:\USB\xampp_177\php/php.exe composer.phar -V
Composer version 0209bd31a0ac3aeb2a68fc81e2d03c71072bef33

檢查PHP Composer命令：

E:\USB\Dropbox\phpstorm\php53>E:\USB\xampp_177\php/php.exe composer.phar
?? ______
? / ____/___? ____ ___? ____? ____? ________? _____
/ /?? / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__? )? __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
??????????????????? /_/
Composer version 0209bd31a0ac3aeb2a68fc81e2d03c71072bef33

Usage:
? [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

這樣我們?cè)赑HP5.3環(huán)境下的Composer已經(jīng)安裝完成。

類似的方法我們也可以安裝PHP 5.4的環(huán)境上。

(...)
Read the rest of PHP Composer 安裝與使用 (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, 依賴管理工具

Feed enhanced by Better Feed from Ozh