I have been using PHP for a very long time and for some reason migrating to a new server has caused a White Screen of Death. Obviously it must be because of a version difference. I have been using the same output buffer pattern for years.
Typically...
ob_start();
?>
//HTML...
<?php
$output = ob_get_clean();
ob_flush();
return $output;
Recently I had discovered some problems in my normal/newer versions of PHP (5.4+ On my WAMP I think) while returning HTML sections and passing them around between views (I use MVC). They were displaying entirely to the screen and not being saved in the buffer at all. I found out that I needed a necessary flag in my ob_start()
to let it know that buffers can be removed.
Like so ob_start(null, 0, PHP_OUTPUT_HANDLER_REMOVABLE);
However now that my page is live and not on WAMP the entire page now breaks and shows full whitescreen. I have all error reporting turned on and still nothing. Nothing showing up in logs, etc. So I have done a large series of echo "test"; die;
echo "test"; die;
to see at what line it is breaking and sure enough all is well when I remove the buffered sections that pass finished HTML blocks between views.
I need to figure out how to properly have my sections returned.
在这种情况下,您不需要ob_flush(),因为ob_get_clean()已经关闭了输出缓冲区。
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