results in blank line output. ... Combine all your PHP codes and make sure you don't have any spaces at the beginning of the file. also after ... ... <看更多>

In this video, I am trying to explain to my users out there who mostly develop in PHP and have these header ... ... <看更多>

I don't think Slim is your problem here. Maybe try running a file like this: // test.php header('HTTP/1.1 200 Ok'); ... ... <看更多>

You see that error because something is sending output (even space characters) before the header-location command. ... <看更多>

404 Not Found, Requests to resources that don't exist or are missing ... and pages are always included in the X-WP-Total and X-WP-TotalPages HTTP headers. ... <看更多>