[Debug] ensured that the Debug tools can only be registered once

Author: fabpot

src/Symfony/Component/Debug/Debug.php

@@ -20,8 +20,26 @@
  */
 class Debug
 {
+ private static $enabled = false;
+
+ /**
+ * Enables the debug tools.
+ *
+ * This method registers an error handler and an exception handler.
+ *
+ * If the Symfony ClassLoader component is available, a special
+ * class loader is also registered.
+ *
+ * @param integer $errorReportingLevel The level of error reporting you wan
+ */
  public static function enable($errorReportingLevel = null)
  {
+ if (static::$enabled) {
+ return;
+ }
+
+ static::$enabled = true;
+
  error_reporting(-1);
  ini_set('display_errors', 0);
 

src/Symfony/Component/Debug/ErrorHandler.php

@@ -47,7 +47,7 @@ class ErrorHandler
  private static $logger;
 
  /**
- * Register the error handler.
+ * 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)
  *

src/Symfony/Component/Debug/ExceptionHandler.php

@@ -41,7 +41,7 @@ public function __construct($debug = true, $charset = 'UTF-8')
  }
 
  /**
- * Register the exception handler.
+ * Registers the exception handler.
  *
  * @param Boolean $debug
  *