A simple example of the phpheader () function-php Tutorial

A simple example of the phpheader () function

// Result error // Output already exists before header () is called Header ('Location: URL '); ?> II. disable browser cache Header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT "); Header ("Cache-Control: no-cache "); Header ("Pragma: no-cache "); 3. you are prompted to save a generated PDF file (the Content-Disposition header is used to provide a recommended file name and force the browser to display the save dialog box ): Header ("Content-type: application/pdf "); // The file will be called downloaded.pdf Header ("Content-Disposition: attachment?filename='downloaded= '"); // The PDF source is in original.pdf Readfile ("original.pdf "); ?> 4. display a 404 prompt on the visitor's browser. // 404 not found Header ("Status: 404 Not Found "); ?>