abhi1693/yii2-installer

<?php

    namespace abhimanyu\installer\helpers;

    use Yii;
    use yii\helpers\Html;

    /**
     * SelfTest is a helper class which checks all dependencies of the application.
     *
     * @since  1.0
     * @author Abhimanyu Saharan
     */
    class SystemCheck
    {
        /**
         * Get Results of the Application SystemCheck.
         *
         * Fields
         *  - title
         *  - state (OK, WARNING or ERROR)
         *  - hint
         *
         * @return Array
         */
        public static function getResults()
        {
            /**
             * ['title']
             * ['state']    = OK, WARNING, ERROR
             * ['hint']
             */
            $checks = [];

            // Checks PHP Version
            $title = 'PHP - Version - ' . PHP_VERSION;

            # && version_compare(PHP_VERSION, '5.9.0', '<')
            if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'OK'
                ];
            } elseif (version_compare(PHP_VERSION, '5.3.0', '<=')) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'ERROR',
                    'hint'  => 'Minimum 5.4'
                ];
            }

            // PDO extension
            $title = 'PDO extension';
            if (extension_loaded('pdo')) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'OK'
                ];
            } else {
                $checks[] = [
                    'title' => $title,
                    'state' => 'ERROR',
                    'hint'  => 'Install PDO Extension'
                ];
            }

            // PDO MySQL extension
            $title = 'PDO MySQL extension';
            if (extension_loaded('pdo_mysql')) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'OK'
                ];
            } else {
                $checks[] = [
                    'title' => $title,
                    'state' => 'ERROR',
                    'hint'  => 'Required by database'
                ];
            }

            // Checks GD Extension
            $title = 'PHP - GD Extension';
            if (function_exists('gd_info')) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'OK'
                ];
            } else {
                $checks[] = [
                    'title' => $title,
                    'state' => 'ERROR',
                    'hint'  => 'Install GD Extension'
                ];
            }

            // PHP SMTP
            $title = 'PHP Mail SMTP';
            if (strlen(ini_get('SMTP')) > 0) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'OK'
                ];
            } else {
                $checks[] = [
                    'title' => $title,
                    'state' => 'WARNING',
                    'hint'  => 'SMTP is required to send mails'
                ];
            }

            // Checks Writable Config
            $title      = 'Permissions - Config';
            $configFile = dirname(Yii::$app->params['dynamicConfigFile']);
            if (is_writeable($configFile)) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'OK'
                ];
            } else {
                $checks[] = [
                    'title' => $title,
                    'state' => 'ERROR',
                    'hint'  => 'Make ' . $configFile . " writable"
                ];
            }

            // Check Runtime Directory
            $title = 'Permissions - Runtime';
            if (is_writable(Yii::$app->runtimePath)) {
                $checks[] = [
                    'title' => $title,
                    'state' => 'OK'
                ];
            } else {
                $checks[] = [
                    'title' => $title,
                    'state' => 'ERROR',
                    'hint'  => 'Make ' . Yii::$app->runtimePath . ' writable'
                ];
            }

            // Only for Windows
            if (strpos(strtolower(php_uname('s')), 'windows') !== FALSE) {
                // Check COM support
                $title = 'PHP COM Support';
                if (extension_loaded('com_dotnet')) {
                    $checks[] = [
                        'title' => $title,
                        'state' => 'OK'
                    ];
                } else {
                    $checks[] = [
                        'title' => $title,
                        'state' => 'ERROR',
                        'hint'  => 'Install COM extension - ' . Html::a('COM Support', 'http://php.net/manual/en/book.com
                    .php', ['target' => 'blank'])
                    ];
                }
            }

            return $checks;
        }
    }