Mpclarkson\IconScraper\DataAccess::retrieveHeader()

Complexity

Conditions	3
Paths	2

Size

Total Lines	18
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function retrieveHeader($url) {
        $this->setContext();

        // get_headers already follows redirects and stacks headers up in array
        $headers = @get_headers($url, TRUE);
        $headers = array_change_key_case($headers);

        // if there were multiple redirects flatten down the location header
        if (isset($headers['location']) && is_array($headers['location'])) {
            $headers['location'] = array_filter($headers['location'], function ($header) {
                return strpos($header, '://') !== false; // leave only absolute urls
            });

            $headers['location'] = end($headers['location']);
        }

        return $headers;
    }
    
}