安装Composer
在使用Composer之前,首先需要安装它。Composer的安装非常简单,可以通过以下命令完成:
curl -sS https://getcomposer.org/installer | php
创建项目并添加依赖
初始化项目
在项目根目录下运行以下命令,初始化一个新的Composer项目:
composer init
autoload.php
<?php
// autoload.php @generated by Composer
if (PHP_VERSION_ID < 50600) {
if (!headers_sent()) {
header('HTTP/1.1 500 Internal Server Error');
}
$err = 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
if (!ini_get('display_errors')) {
if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
fwrite(STDERR, $err);
} elseif (!headers_sent()) {
echo $err;
}
}
throw new RuntimeException($err);
}
require_once __DIR__ . '/composer/autoload_real.php';
return ComposerAutoloaderInit4b55c7ef33235a0353c1b6b079f86964::getLoader();