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<?php |
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declare(strict_types=1); |
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namespace CentErr; |
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use CentErr\Emitter\EmitterInterface; |
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use ErrorException; |
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use Throwable; |
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class ErrorHandler implements ErrorHandlerInterface |
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{ |
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/** |
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* @var EmitterInterface |
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*/ |
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protected $emitter; |
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/** |
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* @var callable[] |
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*/ |
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protected $processors; |
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/** |
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* @var array |
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*/ |
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protected $options = [ |
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'blockingErrors' => true, |
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]; |
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/** |
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* @var bool |
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*/ |
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protected $treatErrorsAsExceptions = false; |
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/** |
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* @var bool |
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*/ |
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private $registered = false; |
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public function __construct(EmitterInterface $emitter, array $processors = [], array $options = []) |
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{ |
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$this->emitter = $emitter; |
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$this->processors = $processors; |
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$this->options = array_merge($this->options, $options); |
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$this->treatErrorsAsExceptions = $this->options['blockingErrors']; |
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} |
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final public function register() : void |
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{ |
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if ($this->registered) { |
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return; |
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} |
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set_error_handler([$this, 'handleError']); |
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set_exception_handler([$this, 'handleException']); |
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register_shutdown_function([$this, 'onShutdown']); |
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$this->registered = true; |
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} |
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final public function unregister() : void |
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{ |
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if (!$this->registered) { |
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return; |
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} |
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restore_error_handler(); |
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restore_exception_handler(); |
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$this->registered = false; |
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} |
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final public function isRegistered() : bool |
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{ |
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return $this->registered; |
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} |
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public function handleError(int $level, string $message, string $file = null, int $line = null) : bool |
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{ |
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if (! ($level & error_reporting())) { |
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return false; |
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} |
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$exception = new ErrorException($message, 0, $level, $file, $line); |
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if ($this->treatErrorsAsExceptions) { |
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throw $exception; |
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} |
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$this->handleException($exception); |
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if ($this->isFatalError($level)) { |
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$this->terminate(); |
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} |
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return true; |
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} |
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public function handleException(Throwable $exception) : void |
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{ |
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$exception = $this->process($exception); |
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$this->emit($exception); |
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} |
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public function onShutdown() : void |
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{ |
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$this->treatErrorsAsExceptions = false; |
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$error = error_get_last(); |
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if ($error && $this->isFatalError($error['type'])) { |
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$this->handleError( |
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$error['type'], |
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$error['message'], |
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$error['file'], |
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$error['line'] |
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); |
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} |
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} |
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protected function process(Throwable $exception) : Throwable |
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{ |
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foreach ($this->processors as $processor) { |
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$exception = $processor($exception); |
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} |
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return $exception; |
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} |
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protected function emit(Throwable $exception) : void |
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{ |
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$this->emitter->emit($exception); |
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} |
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final protected function isFatalError(int $errorLevel) : bool |
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{ |
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$fatalErrorLevels = E_ERROR | E_PARSE | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR; |
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return ($errorLevel & $fatalErrorLevels) > 0; |
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} |
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final protected function terminate() : void |
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{ |
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exit(1); |
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} |
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} |
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nikolaposa /
centerr
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.