note 74227 deleted from function.ob-get-status by nlopess

Note Submitter: mightye at gmail dot com ---- I tried to use this function to break out of arbitrary output buffering depth in order to send text directly to the web server. This is necessary if you want to check client connectivity with connection_aborted() or connection_status() (these methods require that you attempt to send data to the browser before each time you check their value in order for the value to be meaningful). I created an ob_pause() pause function which suspends ALL output buffering, and returns an array representing the state that output buffering was in. Then there is an ob_resume() function which accepts this state array and as closely as possible attempts to restore output buffering to its previous state. Known issue: If you have an output handler set which is array($class_instance,'method'), the best I can do with the data PHP makes available to me is restore it as a static call against class::method. Anyone who can tell me how to get a reference to the actual object which was handling output please drop me a line, your feedback would be most welcome. <?php /** * Pauses all output buffering no matter how deep you are. * All output buffering is suspended so that you can write directly to the * web server. Returns an output buffer stack which must be passed to * ob_resume() in order to restore the previous output buffer state. * @author Eric Stevens (http://lotgd.net) * @return array */ function ob_pause() { $OB_stack = ob_get_status(true); for ($x = count($OB_stack) - 1; $x >= 0; $x--) { $content = ob_get_clean(); // Workaround, empty chunk size represents as 0, should be null. if ($OB_stack[$x]['chunk_size'] == 0) $OB_stack[$x]['chunk_size'] = null; $OB_stack[$x]['content'] = $content; } return $OB_stack; } /** * Restores the output buffer state as closely as possible. * Restores the output buffer as closely as possible to the state it was when * ob_pause() was called. Expects the output stack that ob_pause() returned. * This function fails to correctly restore the full state if any of the output * handler callback functions were actually array($class,'method') since we have * no way to retrieve a reference to $class. Instead it will try to restore the * callback as a static call to same method on the class definition. * @author Eric Stevens (http://lotgd.net) * @param array $OB_stack The return value from ob_pause() which you are * restoring. * @return void */ function ob_resume($OB_stack) { for ($x = 0; $x < count($OB_stack); $x++) { // we can't rely on ['type'] to determine if this is the built in default // handler since in some (many?) versions of PHP it is always 1 (one) if ($OB_stack[$x]['name'] == 'default output handler') { ob_start(); } else { $handler = explode('::',$OB_stack[$x]['name']); if (count($handler) > 1){ // a class callback // This is only partially functional, we can only restore static // methods on the object since we do not have any references // to the original object from here. ob_start($handler, $OB_stack[$x]['chunk_size'], $OB_stack[$x]['del']); } else { ob_start($handler[0], $OB_stack[$x]['chunk_size'], $OB_stack[$x]['del']); } } echo $OB_stack[$x]['content']; } } ?>