EC-CUBE / ec-cube

autoload.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 35 and the first side effect is on line 5.

// システム要件チェック
if (version_compare(PHP_VERSION, '5.3.9') < 0) {
    die('Your PHP installation is too old. EC-CUBE requires at least PHP 5.3.9. See the <a href="http://www.ec-cube.net/product/system.php">system requirements</a> page for more information.');
}

if (extension_loaded('wincache')) {
    if (!ini_get('opcache.enable')) {
        ini_set('wincache.ocenabled', 1);
    }
    ini_set('wincache.fcenabled', 1);
}

$autoload = __DIR__.'/vendor/autoload.php';

if (file_exists($autoload) && is_readable($autoload)) {
    $loader = require $autoload;
} else {
    die('Composer is not installed.');
}

// autoloader cache
if (extension_loaded('apc') && ini_get('apc.enabled')) {
    $apcLoader = new Symfony\Component\ClassLoader\ApcClassLoader(sha1(__FILE__), $loader);
    $apcLoader->register();
    $loader->unregister();
} elseif (extension_loaded('wincache') && ini_get('wincache.fcenabled')) {
    $winCacheLoader = new Symfony\Component\ClassLoader\WinCacheClassLoader(sha1(__FILE__), $loader);
    $winCacheLoader->register();
    $loader->unregister();
}

//[INFO]index.php,install.phpをEC-CUBEルート直下に移動させる場合は、コメントアウトしている行に置き換える
define("RELATIVE_PUBLIC_DIR_PATH", '');
//define("RELATIVE_PUBLIC_DIR_PATH", '/html');

75% of this comment could be valid code. Did you maybe forget this after debugging?

return $loader;