Online PHP editor | output for ldfgo

<?php function formatUrl($url) { if ( ! is_string($url) || ! $url) { return ''; } $info = parse_url($url); if ( ! $info) { return ''; } if (empty($info['scheme']) && strpos($url, '//') === 0) { $info['scheme'] = is_ssl() ? 'https' : 'http'; } if ( ! isset($info['scheme']) || ! isset($info['host']) || ! in_array($info['scheme'], ['http', 'https'], true) ) { return ''; } $out = $info['scheme'].'://'; $out .= trim(urlencode($info['host']), '/'); if ( ! empty($info['path'])) { $parts = array_map('urlencode', explode('/', $info['path'])); array_filter($parts); $out .= '/'.trim(implode('/', $parts), '/'); } if ( ! empty($info['query'])) { parse_str($info['query'], $vars); $parsed = ''; array_walk($vars, function ($v, $k) use (&$parsed) { $parsed and $parsed .= '&'; $parsed .= "{$k}=".urlencode($v); }); $vars and $out .= "?{$parsed}"; } $out = str_replace( ['%22', '%27', '%3E', '%3C'], ['&quote;', ''', '>', '<'], $out ); return filter_var($out, FILTER_SANITIZE_URL); } $test = 'http://look-at-àüß<δmeh.com?foo="bar"&test=:meh!'; echo formatUrl($test);