[Debug] added some missing phpdocs

src/Symfony/Component/Debug/ErrorHandler.php

@@ -16,6 +16,7 @@ use Symfony\Component\Debug\Exception\ContextErrorException;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedFunctionFatalErrorHandler;
 use Symfony\Component\Debug\FatalErrorHandler\ClassNotFoundFatalErrorHandler;
+use Symfony\Component\Debug\FatalErrorHandler\FatalErrorHandlerInterface;
 
 /**
  * ErrorHandler.
@@ -57,7 +58,7 @@ class ErrorHandler
     /**
      * Registers the error handler.
      *
-     * @param integer $level The level at which the conversion to Exception is done (null to use the error_reporting() value and 0 to disable)
+     * @param integer $level         The level at which the conversion to Exception is done (null to use the error_reporting() value and 0 to disable)
      * @param Boolean $displayErrors Display errors (for dev environment) or just log they (production usage)
      *
      * @return The registered error handler
@@ -76,16 +77,32 @@ class ErrorHandler
         return $handler;
     }
 
+    /**
+     * Sets the level at which the conversion to Exception is done.
+     *
+     * @param integer|null $level The level (null to use the error_reporting() value and 0 to disable)
+     */
     public function setLevel($level)
     {
         $this->level = null === $level ? error_reporting() : $level;
     }
 
+    /**
+     * Sets the display_errors flag value.
+     *
+     * @param integer $displayErrors The display_errors flag value
+     */
     public function setDisplayErrors($displayErrors)
     {
         $this->displayErrors = $displayErrors;
     }
 
+    /**
+     * Sets a logger for the given channel.
+     *
+     * @param LoggerInterface $logger  A logger interface
+     * @param string          $channel The channel associated with the logger (deprecation or emergency)
+     */
     public static function setLogger(LoggerInterface $logger, $channel = 'deprecation')
     {
         self::$loggers[$channel] = $logger;
@@ -163,7 +180,14 @@ class ErrorHandler
         }
     }
 
-    public function getFatalErrorHandlers()
+    /**
+     * Gets the fatal error handlers.
+     *
+     * Override this method if you want to define more fatal error handlers.
+     *
+     * @return FatalErrorHandlerInterface[] An array of FatalErrorHandlerInterface
+     */
+    protected function getFatalErrorHandlers()
     {
         return array(
             new UndefinedFunctionFatalErrorHandler(),