Bug #16077 Updated: Large output data causes output buffering to crash

ID: 16077 Updated by: yohgaki@php.net Reported By: harry.brueckner@orange-digital.de -Status: Analyzed +Status: Bogus Bug Type: Output Control Operating System: RH Linux 2.4.9-31 PHP Version: 4.1.1 New Comment: ob_start() disables chunked output by default. Your script should work if ob_start('timemer', 4096) for example. Not like output_buffering ini directive, ob_start()'s default chunk size is 0 (which means no chunked output -> you're exhousting memory) Previous Comments: ------------------------------------------------------------------------ [2002-05-03 23:25:40] yohgaki@php.net This should be chunked output problem. ------------------------------------------------------------------------ [2002-03-14 12:46:01] harry.brueckner@orange-digital.de This script causes PHP to crash (sigsegv, return nothing OR to cause wget to tell "HTTP request sent, awaiting response... End of file while parsing headers. Retrying.") almost any time. The include.txt file I used was larger than 100k and was just a simple text. The content of the file is not important at all, I tried several versions. <?php function getMicrotime() { list($usec, $sec) = explode(" ", microtime()); return ((float)$usec + (float)$sec); } function timer($buffer) { global $startTime; $endTime = getMicrotime(); $diff = sprintf("%.5f", $endTime - $startTime); return $buffer . "\nExecution time: $diff sec<br>\n"; } $startTime = getMicrotime(); ob_start("timer"); for ($i = 0; $i < 500; $i++) { $fh = fopen("include.txt", "r"); $cmd = fread($fh, 1048576); fclose($fh); echo "$i $cmd\n"; } ?> I compiled PHP with ./configure --prefix=/usr/local/php --disable-short-tags --enable-safe-mode --enable-ftp --with-mysql=/usr/local/mysql --with-zlib --enable-memory-limit ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=16077&edit=1