note 101154 added to function.readfile
| From: | phpwiz at shiinaringoLESSSPAM dot se | Date: | Tue, 30 Nov 2010 09:49:40 +0000 |
| Subject: | note 101154 added to function.readfile | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-174466@lists.php.net to get a copy of this message | ||
Another note on the smartReadFile function from gaosipov:
Beware when sending big files. They will quickly eat your memory (PHP memory, or system memory if no
limit is set), because I guess somewhere PHP buffers the output.
I added flushing inside the while loop, the loop that's outputting the file:
<?php
while (!feof($fm) && $cur < $end &&(connection_status() == 0)) {
print fread($fm, min(1024 * 16, $end - $cur));
$cur += 1024 * 16;
flush();
ob_flush();
}
?>
With this I managed to send 200-300 MB files with a PHP memory limit set at 8 MB. Without the
flushing, it would die out because of reaching the memory limit even at 128 MB.
I'm not sure which of the two flushes did the trick.
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Manual Page -- http://www.php.net/manual/en/function.readfile.php
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