Description:
------------
There seems to be a strange behaviour when it comes to the execution of a custom error handler.Particularly, a query is  executed twice, but the rest of the code only once.

Reproduce code:
---------------
set_error_handler("user_error_handler");

function user_error_handler($severity, $msg, $filename, $linenum,$content) {
	if ($severity & E_STRICT){
		return;
	}
	else{
		$errorMsg ='There was an error';
		echo 'test';
		$link = mysql_connect('localhost', 'root', 'password');
		$db_selected = mysql_select_db('db', $link);
		$sql = "INSERT INTO Errors
		 (ErrorMsg
		 ,DateCreated) VALUES (
		 '".$errorMsg."'
		 ,NOW()
		 )";
		$results = mysql_query($sql);
		die;
	}
}

echo s; 


Expected result:
----------------
The query should run once and 'test' should appear on the screen 

Actual result:
--------------
The query is executed twice and 'test' appears only once on the screen