Description:
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imagejpeg function not work in stream_register_wrapper.

Reproduce code:
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class dbStream{...}
stream_register_wrapper("mysql123", "dbStream") or die("Failed to register protocol");

$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);
imagejpeg($im, 'mysql123://simpletext.jpg');
imagedestroy($im);

Expected result:
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no error.

Actual result:
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Warning: imagejpeg(): Unable to open 'mysql123://simpletext.jpg' for writing: Invalid argument.