note 50408 added to function.popen

From: Date: Sun, 27 Feb 2005 13:52:21 +0000
Subject: note 50408 added to function.popen
Groups: php.notes 
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Note that there appears to be a limit to the amount of data that fread() will return from a handle opened with popen(). A call to fread() may not return as much as you ask for. For example, suppose I have a file "myfile.txt" which is more than 10KB in size. The following code works as expected: <?php $fp = fopen('myfile.txt', 'r'); $data = fread($fp, 10240); echo strlen($data); ?> The output is '10240.' However, popen() behaves differently: <?php $fp = popen('/bin/cat myfile.txt', 'r'); $data = fread($fp, 10240); echo strlen($data); ?> On my system, this code prints out '8192' instead of the expected '10240.' ---- Manual Page -- http://www.php.net/manual/en/function.popen.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+50408 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+50408&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+50408&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+50408&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+50408&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+50408&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+50408&report=yes Search -- http://master.php.net/manage/user-notes.php

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