sinergi / php-browser-detector

        return null;

    }

    private static function writeEdgeVersion($edgeHtml, $edge)

    {

        $file = __DIR__ . '/../../src/edgeVersionMap.php';

        $currentVersions = require $file;

        if (!isset($currentVersions[$edgeHtml])) {

            $currentVersions[$edgeHtml] = $edge;

            ksort($currentVersions);

            $content = '';

            foreach ($currentVersions as $edgeHtml => $edge) {

                $content .= "    '{$edgeHtml}' => '{$edge}'," . PHP_EOL;

            }

            $data = <<<PHP

<?php

return array(

    %s

);

PHP;

            file_put_contents($file, sprintf($data, trim($content)));

        }

    }

    private static function fetchSiblingVersions($content)

    {

        return array($edgeHtmlVersion[1], $edgeVersion[1]);

    }

    private static function writeEdgeVersions($versions)

    {

        $file = __DIR__ . '/../../src/edgeVersionMap.php';

        $currentVersions = require $file;

        foreach ($versions as $version) {

            $currentVersions[$version[0]] = $version[1];

        }

        ksort($currentVersions);

        $content = '';

        foreach ($currentVersions as $edgeHtml => $edge) {

            $content .= "    '{$edgeHtml}' => '{$edge}'," . PHP_EOL;

        }

        $data = <<<PHP

<?php

return array(

    %s

);

PHP;

        file_put_contents($file, sprintf($data, trim($content)));

    }

}