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Old 06-28-2005, 02:06 PM
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AN-net AN-net is offline
 
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Default flush(); function?

what does this function actually do? ive seen it used in the admin cp.
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Old 06-28-2005, 02:34 PM
Brad Brad is offline
 
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Quote:
Originally Posted by AN-net
what does this function actually do? ive seen it used in the admin cp.
It attempts to push all data up to the flush(); call out to the browser.

From php.net

Quote:
flush

(PHP 3, PHP 4, PHP 5)
flush -- Flush the output buffer
Description
void flush ( void )

Flushes the output buffers of PHP and whatever backend PHP is using (CGI, a web server, etc). This effectively tries to push all the output so far to the user's browser.

flush() has no effect on the buffering scheme of your webserver or the browser on the client side. Thus you need to call both ob_flush() and flush() to flush the output buffers.

Several servers, especially on Win32, will still buffer the output from your script until it terminates before transmitting the results to the browser.

Server modules for Apache like mod_gzip may do buffering of their own that will cause flush() to not result in data being sent immediately to the client.

Even the browser may buffer its input before displaying it. Netscape, for example, buffers text until it receives an end-of-line or the beginning of a tag, and it won't render tables until the </table> tag of the outermost table is seen.

Some versions of Microsoft Internet Explorer will only start to display the page after they have received 256 bytes of output, so you may need to send extra whitespace before flushing to get those browsers to display the page.
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Old 06-28-2005, 02:44 PM
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AN-net AN-net is offline
 
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ty brad
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