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-rw-r--r--system/core/Output.php4
1 files changed, 2 insertions, 2 deletions
diff --git a/system/core/Output.php b/system/core/Output.php
index 2dabb2445..aceef676a 100644
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -412,7 +412,7 @@ class CI_Output {
* @param string $output Output data override
* @return void
*/
- public function _display($output = '')
+ public function _display($output = NULL)
{
// Note: We use load_class() because we can't use $CI =& get_instance()
// since this function is sometimes called by the caching mechanism,
@@ -429,7 +429,7 @@ class CI_Output {
// --------------------------------------------------------------------
// Set the output data
- if ($output === '')
+ if ($output === NULL)
{
$output =& $this->final_output;
}