ob_end_flush
Use an '@' sign as "@ob_flush();" to avoid the following message:
Notice: ob_flush(): failed to flush buffer. No buffer to flush. in /etc/www/test.php on line 88
ob_flush
(PHP 4 >= 4.2.0, PHP 5)
ob_flush — Leert (sendet) den Ausgabepuffer
Beschreibung
void ob_flush
( void
)
Diese Funktion sendet den aktuellen Inhalt des Ausgabepuffers (falls vorhanden). Wenn sie die Pufferinhalte mit ob_get_contents() weiterverarbeiten wollen so müssen sie dies vor Aufruf von ob_flush() tun da diese sonst nicht mehr vorhanden sind.
Anders als bei ob_end_flush() bleibt der Ausgabepuffer erhalten.
Rückgabewerte
Es wird kein Wert zurückgegeben.
Siehe auch
- ob_get_contents() - Gibt den Inhalt des Ausgabe-Puffers zurück
- ob_clean() - Löscht den Ausgabepuffer
- ob_end_flush() - Leert (schickt/sendet) den Ausgabe-Puffer und deaktiviert die Ausgabe-Pufferung
- ob_end_clean() - Löscht den Ausgabe-Puffer und deaktiviert die Ausgabe-Pufferung
add a note
User Contributed Notesob_flush
solidli at gmail dot com
23-May-2007 06:28
23-May-2007 06:28
22-Sep-2005 03:37
I was having problems with output buffering which seemed to be active by default on the server, although phpinfo said something else..
In any case I needed to know that when I ran ob_start, it would start at the top level, so I could use ob_flush as it's intended without having to call multiple ob_flush in-script - this is what I did:
<?php
// make sure output buffering is off before we start it
// this will ensure same effect whether or not ob is enabled already
while (ob_get_level()) {
ob_end_flush();
}
// start output buffering
if (ob_get_length() === false) {
ob_start();
}
?>
Then I could call ob_flush(); followed by flush(); and get the output I wanted, which I didn't if I started the script with just ob_start();
This was on a windows apache 2 server with php 5.0.4 btw.
24-Jun-2005 03:27
You must call them in the correct order.
ob_flush();
flush();
Reynard Hilman
22-Jun-2005 11:29
22-Jun-2005 11:29
when using command line php, if somewhere in your script you have ob_start(), you have to call ob_end_flush() first, and then you can call these functions:
flush();
ob_flush();
without calling ob_end_flush first, flush and ob_flush does not have any effect, at least that's what I experienced.
jeremy at e2-media dot co dot nz
26-May-2005 01:09
26-May-2005 01:09
we had problems with flushing data to the browser. a simple call to ob_flush() or flush() would not work. We found that repeatly calling theses fuctions did work however.
<?
flush();
ob_flush();
flush();
ob_flush();
flush();
ob_flush();
?>
go figure!
14-Jan-2003 05:23
As far as I can tell the only way to mimic ob_flush()'s behaviour on PHP < 4.2.0 is calling ob_end_flush() followed by ob_start().