Bug #76086 [Opn]: Unable to write to php://stderr

Edit report at https://bugs.php.net/bug.php?id=76086&edit=1 ID: 76086 User updated by: chris at modd dot com dot au Reported by: chris at modd dot com dot au Summary: Unable to write to php://stderr Status: Open Type: Bug Package: Streams related Operating System: Windows PHP Version: 7.2.3 Block user comment: N Private report: N New Comment: This problem only seems to be a problem when using php-cgi Previous Comments: ------------------------------------------------------------------------ [2018-03-13 05:11:48] chris at modd dot com dot au Description: ------------ Can no longer output to STDERR using file_put_contents. Used to work fine in PHP 5.x. Also Affects 7.1.x Test script: --------------- <?php $msg = "Error Occurred\n"; file_put_contents("php://stderr", $msg); Expected result: ---------------- Error Occurred written to console on stderr Actual result: -------------- Rather than stderr output error message, I get a warning: Only 0 of 15 bytes written, possibly out of free diskspace in script.php on line 3 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76086&edit=1