Waiting for a certain page to load in using Mink & Behat

FeatureContext.php

<?php

    private function waitForPageToLoad($pageName, $timeout = 10)
    {
        $count = 10;

        while (0 !== stripos($this->getSession()->getCurrentUrl(), $pageName)) {
            sleep(1);

            if (0 === $count--) {
                throw  new \Exception('Didn\'t return to site');
            }
        }
    }

this function dont shows at example.feature file?? why?? i wont use this function in test (using behat)

And what do u mean pagename ?? its <<title>> facebook signup <</title>> ??