header ('Location: http://www.domain.com/blablabla.php') does not work

One minor problem when creating a website using php, this trivial problem sometimes hinder the work / logic that is more important.

One issue that is trivial: Header ("Location:");

As we all know that the tag header ("Location:"); in php function to send a redirect header or page to another.

At the time of failure, the classic problems that occur are: