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<?php
namespace backend\modules\installer\helpers;
use Yii;
/**
* SystemChecker is a helper class which checks all dependencies of the application.
*
* @since 1.0
* @author Awsaf Anam Chowdhury
*/
class SystemChecker
{
/**
* Get Results of the Application SystemChecker.
*
* 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';
$configFile = dirname(__DIR__ . DIRECTORY_SEPARATOR);
if (is_writeable($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'];
}
return $checks;
}
}