标签：composer package management php包管理
从官网下载composer
composer是跨平台的, 这里只介绍windows使用composer
下载好了后, 进行安装.
可以选择 "Install Shell Menus", 这将会在右键菜单里面增加composer的快捷入口.
composer会自动找到php.exe的位置. 也可以自定义php的位置.
下载composer.phar
该死的"墙", 连接上VPN.
我的php 5.3.3 确实够老的. 点击next.
成功, composer设置了 path 环境变量. 所以可以在command line的任意位置使用composer命令了.
下面就来用一下composer.
新建一个文件夹, C:\clearvale\elgg\ztest\oauth_server_bshaffer
由于装了 shell menu,
所以直接在文件夹上右键选择 Use Composer here
现在遵循最传统的方式使用composer, 新建oauth_server_bshaffer/composer.json 文件.
这里用 bshaffer的oauth2 server来演示. 在composer.php里面写入如下内容.
{
"require": {
"bshaffer/oauth2-server-php": "~0.9"
}
}
<<<<<<<<<<<<<<<<<<<<
这里记录一下, 之前写入的是
{
"require": {
"bshaffer/oauth2-server-php": "~1.7",
}
}
首先多了个 , 号
导致composer报错.
C:\clearvale\elgg\ztest\oauth_server_bshaffer>composer install
[Seld\JsonLint\ParsingException]
"./composer.json" does not contain valid JSON
Parse error on line 3:
}
---------------------^
Expected: ‘STRING‘ - It appears you have an extra trailing comma
install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-autoloader] [--no-scripts] [--n
o-progress] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [--ignore-platform-reqs] [packages1] ... [packagesN]
去掉逗号后, 又报如下错误:
C:\clearvale\elgg\ztest\oauth_server_bshaffer>composer install
Loading composer repositories with package information
Installing dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Installation request for bshaffer/oauth2-server-php dev-develop -> satisfiable by bshaffer/oauth2-server-php[dev-develop].
- bshaffer/oauth2-server-php dev-develop requires php >=5.3.9 -> your PHP version (5.3.3) or "config.platform.php" value does not satisfy that req
uirement.
C:\clearvale\elgg\ztest\oauth_server_bshaffer>composer install
Loading composer repositories with package information
Installing dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- bshaffer/oauth2-server-php v1.7.1 requires php >=5.3.9 -> your PHP version (5.3.3) or "config.platform.php" value does not satisfy that requirem
ent.
- bshaffer/oauth2-server-php v1.7.0 requires php >=5.3.9 -> your PHP version (5.3.3) or "config.platform.php" value does not satisfy that requirem
ent.
- Installation request for bshaffer/oauth2-server-php ~1.7 -> satisfiable by bshaffer/oauth2-server-php[v1.7.0, v1.7.1].
大意是说: 1.7这个版本的最低php环境是 php >= 5.3.9
那么到底有多少个版本, 哪个版本支持php5.3.3 呢?
可以访问composer的packagelist官网.
https://packagist.org/packages/bshaffer/oauth2-server-php#v0.9
正好, bshaffer也推荐v0.9为stable release.
>>>>>>>>>>>>>>>>>>>>>>>>>
所以就装 v0.9, 继续composer install
C:\clearvale\elgg\ztest\oauth_server_bshaffer>composer install
Loading composer repositories with package information
Installing dependencies (including require-dev)
- Installing bshaffer/oauth2-server-php (v0.9)
Downloading: 100%
Writing lock file
Generating autoload files
成功了. composer已经成功安装了oauth2-server-php (v0.9),
查看安装后的文件目录.
composer.lock用于锁定所有包的版本. 安装的时候会检查composer.lock文件的存在.
composer.lock和composer.json一起控制项目的版本.
比如现在已经装完了包, 再次运行composer install, 会显示 Nothing to install or update.
oauth_server_php v0.9包已经安装完毕.
下面测试一下 auto_load
新建: C:\clearvale\elgg\ztest\oauth_server_bshaffer\test.php
写入如下内容:
<?php require ‘vendor/autoload.php‘; //token controller $dsn = "mysql:my_oauth2_db;host=localhost"; $username = "root"; $password = "root"; $storage = new OAuth2_Storage_Pdo(array(‘dsn‘ => $dsn, ‘username‘ => $username, ‘password‘ => $password)); print_r($storage);
最后打印出了 $storage对象.
那么可见包里面的文件已经被自动加载. 只需要 require ‘vendor/autoload.php‘;
包里面的所有文件都可以使用了.
end...
(有关composer更多的内容, 访问: http://www.phpcomposer.com/)
本文出自 “技术从现在开始” 博客，请务必保留此出处http://rflyqhao.blog.51cto.com/5565993/1685014
用composer装oauth2-server-php v0.9(bshaffer)
标签：composer package management php包管理
原文地址：http://rflyqhao.blog.51cto.com/5565993/1685014
