composer安装的步骤
首先点击下载，然后
点击 Composer-Setup.exe然后下载一个window下的composer安装软件
下载后 点击安装 然后会选择php.ini版本 然后勾选 ，然后一路安装下去 有个长时间等待下载安装包，等待安装完成后，如果报错 就检查 PHP扩展的OpenSSL 有没有打开。
然后在cmd命令行中输入 composer 发现报错
C:\Users\Administrator>composer
PHP Fatal error: Uncaught exception 'PharException' with message 'phar "C:\ProgramData\ComposerSetup\bin\comp
oser.phar" has a broken signature' in C:\ProgramData\ComposerSetup\bin\composer.phar:23
Stack trace:
#0 C:\ProgramData\ComposerSetup\bin\composer.phar(23): Phar::mapPhar('composer.phar')
#1 {main}
thrown in C:\ProgramData\ComposerSetup\bin\composer.phar on line 23
Fatal error: Uncaught exception 'PharException' with message 'phar "C:\ProgramData\ComposerSetup\bin\composer.
phar" has a broken signature' in C:\ProgramData\ComposerSetup\bin\composer.phar on line 23
PharException: phar "C:\ProgramData\ComposerSetup\bin\composer.phar" has a broken signature in C:\ProgramData\
ComposerSetup\bin\composer.phar on line 23
Call Stack:
0.0015 328520 1. {main}() C:\ProgramData\ComposerSetup\bin\composer.phar:0
0.0015 328608 2. Phar::mapPhar() C:\ProgramData\ComposerSetup\bin\composer.phar:23
然后在网上找到了解决方案是替换覆盖C:\ProgramData\ComposerSetup\bin下的composer.phar包
然后下载好了直接覆盖掉C:\ProgramData\ComposerSetup\bin\composer.phar即可
然后再次输入composer
即得到
C:\Users\Administrator>composer
______
/ ____/___ ____ ___ ____ ____ ________ _____
/ / / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__ ) __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
/_/
Composer version 1.0.0-alpha8 2014-01-06 18:39:59
Usage:
[options] command [arguments]
Options:
--help -h Display this help message.
--quiet -q Do not output any message.
--verbose -v|vv|vvv Increase the verbosity of messages: 1 for normal output, 2 for more verbose outpu
t and 3 for debug
--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
global Allows running commands in the global composer dir ($COMPOSER_HOME).
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.
licenses Show information about licenses of dependencies
list Lists commands
require Adds required packages to your composer.json and installs them
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
说明安装成功！
