#3073: Fix an undefined variable error
diff --git a/system/libraries/Session/drivers/Session_files_driver.php b/system/libraries/Session/drivers/Session_files_driver.php
index 4acbcf6..f95edcf 100644
--- a/system/libraries/Session/drivers/Session_files_driver.php
+++ b/system/libraries/Session/drivers/Session_files_driver.php
@@ -187,19 +187,22 @@
rewind($this->_file_handle);
}
- for ($written = 0, $length = strlen($session_data); $written < $length; $written += $result)
+ if (($length = strlen($session_data)) > 0)
{
- if (($result = fwrite($this->_file_handle, substr($session_data, $written))) === FALSE)
+ for ($written = 0; $written < $length; $written += $result)
{
- break;
+ if (($result = fwrite($this->_file_handle, substr($session_data, $written))) === FALSE)
+ {
+ break;
+ }
}
- }
- if ( ! is_int($result))
- {
- $this->_fingerprint = md5(substr($session_data, 0, $written));
- log_message('error', 'Session: Unable to write data.');
- return FALSE;
+ if ( ! is_int($result))
+ {
+ $this->_fingerprint = md5(substr($session_data, 0, $written));
+ log_message('error', 'Session: Unable to write data.');
+ return FALSE;
+ }
}
$this->_fingerprint = md5($session_data);