PYTHON flush

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Python replacement for PHP's flush [ edit | history ]
import sys
print 'This will be output immediately.'
sys.stdout.flush()


PHP flush

PHP original manual for flush [ show | php.net ]

flush

(PHP 4, PHP 5)

flushFlush 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 web server 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.

Return Values

No value is returned.