PHP Error: ob_flush() [ref.outcontrol]: failed to flush buffer. No buffer to flush

Question

Could someone please save these 2 files and run them and tell me why I get the error \" ob_flush() [ref.outcontrol]: failed to flush buffer. No buffer to flush\". I tried go

Answer 1

I think you are confusing ob_flush() with flush(). While ob_start() and ob_flush() handles a PHP internal output buffer that catches all outputs, flush() is the normal function that flushes STDOUT like in other programming languages.

Example:

EDIT:

Your output is not printed, because your webserver may buffer the contents. Try to turn off compression and output buffering:

@apache_setenv('no-gzip', 1);
@ini_set('zlib.output_compression', 0);
@ini_set('implicit_flush', 1);

Please also keep in mind, that Safari and Internet Explorer have an internal 1K buffer. So you need to add 1 KB of padding data (like spaces), to make them render.

EDIT 2: Your implementation is broken. You want to poll your data with ajax. Use jQuery on the client side:

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Then in script-that-returns-stuff.php: