php - Does register_shutdown_function() get called before or after the response is echoed? -

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i writing phalcon php application. in it, register shutdown function in constructor of class:

public function __construct() {     register_shutdown_function([$this, 'shutdownhandler']); }  public function shutdownhandler() {     $this->deliverqueue(); }

whenever conditions run hold, waiting time response higher.

i made small test: when comment out deliverqueue, response comes in 1 second. when replace line sleep(1), response comes after 5-6(!!!) seconds. when replace sleep(10), 500 error.

per documentation, expect shutdown function activate after script execution finishes, therefore after response gets echoed back.

is documentation incorrect? why happening?

yes register_shutdown_function execute after script finishes or if attempt of exit or if error occurs register_shutdown_function run


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