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<?php |
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namespace Protoku\Exceptions; |
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use ErrorException; |
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use Protoku\Exceptions\Interfaces\FormatterInterface; |
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class Handler |
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{ |
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const ERROR_HANDLER = 'handleError'; |
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const EXCEPTION_HANDLER = 'handleException'; |
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const SHUTDOWN_HANDLER = 'handleShutdown'; |
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/** |
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* @var FormatterInterface |
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*/ |
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private $formatter; |
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/** |
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* Handler constructor. |
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* |
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* @param FormatterInterface $formatter |
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*/ |
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public function __construct(FormatterInterface $formatter) |
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{ |
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$this->formatter = $formatter; |
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$this->disablePHPDisplayErrors(); |
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$this->registerErrorHandler(); |
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$this->registerExceptionHandler(); |
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$this->registerShutdownHandler(); |
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} |
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protected function disablePHPDisplayErrors() |
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{ |
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ini_set( 'display_errors', 0 ); |
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} |
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/** |
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* Register the PHP error handler. |
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* |
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* @return void |
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*/ |
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protected function registerErrorHandler() |
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{ |
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set_error_handler([$this, self::ERROR_HANDLER]); |
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} |
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/** |
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* Register the PHP exception handler. |
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* |
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* @return void |
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*/ |
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protected function registerExceptionHandler() |
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{ |
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set_exception_handler([$this, self::EXCEPTION_HANDLER]); |
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} |
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/** |
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* Register a function for execution on shutdown |
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* |
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* @return void |
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*/ |
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protected function registerShutdownHandler() |
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{ |
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register_shutdown_function([$this, self::SHUTDOWN_HANDLER]); |
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} |
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/** |
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* @param int $level |
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* @param string $message |
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* @param string $file |
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* @param int $line |
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* |
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* @throws ErrorException |
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*/ |
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public function handleError(int $level, string $message, string $file = '', int $line = 0) |
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{ |
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throw new ErrorException($message, 0, $level, $file, $line); |
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} |
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/** |
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* @param \Throwable $e |
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*/ |
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public function handleException(\Throwable $e) |
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{ |
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$data = json_encode($this->formatter->format($e)); |
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$this->sendException($data, 500); |
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} |
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/** |
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* Handle the PHP shutdown event. |
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*/ |
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public function handleShutdown() |
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{ |
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$error = error_get_last(); |
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if ($error) { |
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$this->handleException(new ErrorException($error['message'], 0, $error['type'], $error['file'], $error['line'])); |
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} |
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} |
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public function sendException($data, $statusCode) |
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{ |
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header("HTTP/1.0 " . $statusCode . " Internal Server Error"); |
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header('Content-Type: application/json; charset=utf-8'); |
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echo $data; |
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return; |
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} |
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} |
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.