note 66823 added to function.ob-start

Hello firends ob_start() opens a buffer in which all output is stored. So every time you do an echo, the output of that is added to the buffer. When the script finishes running, or you call ob_flush(), that stored output is sent to the browser (and gzipped first if you use ob_gzhandler, which means it downloads faster). The most common reason to use ob_start is as a way to collect data that would otherwise be sent to the browser. These are two usages of ob_start(): 1-Well, you have more control over the output. Trivial example: say you want to show the user an error message, but the script has already sent some HTML to the browser. It'll look ugly, with a half-rendered page and then an error message. Using the output buffering functions, you can simply delete the buffer and sebuffer and send only the error message, which means it looks all nice and neat buffer and send 2-The reason output buffering was invented was to create a seamless transfer, from: php engine -> apache -> operating system -> web user If you make sure each of those use the same buffer size, the system will use less writes, use less system resources and be able to handle more traffic. With Regards, Hossein ---- Server IP: 66.163.161.117 Probable Submitter: 80.191.134.205 (proxied: 80.191.134.205, 80.191.134.205) ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/function.ob-start.php Edit -- http://master.php.net/note/edit/66823 Del: integrated -- http://master.php.net/note/delete/66823/integrated Del: useless -- http://master.php.net/note/delete/66823/useless Del: bad code -- http://master.php.net/note/delete/66823/bad+code Del: spam -- http://master.php.net/note/delete/66823/spam Del: non-english -- http://master.php.net/note/delete/66823/non-english Del: in docs -- http://master.php.net/note/delete/66823/in+docs Del: other reasons-- http://master.php.net/note/delete/66823 Reject -- http://master.php.net/note/reject/66823 Search -- http://master.php.net/manage/user-notes.php