Introduction

When using parse_url to parse the following URLs, garbled characters will appear (this kind of URL is normally allowed and should be named in the backend)

$url = 'http://www.baidu.com/a/b/c/New Microsoft Word document.docx';
print_r(parse_url($url));

result:

mb_parse_url

in(http://php.net/manual/zh/function.parse-url.phpThere is a related UTF-8 compatible method in ), but it feels that it is not fully compatible with parse_url.

if (!function_exists('mb_parse_url')) {
    /**
     * UTF-8 aware parse_url() replacement.
     *
     * @param $url
     * @param int $component
     * @return mixed|string
     */
    function mb_parse_url($url, $component = -1)
    {
        $encodedUrl = preg_replace_callback(
            '%[^:/?#&=\.]+%usD',
            function ($matches) {
                return urlencode($matches[0]);
            },
            $url
        );

        $components = parse_url($encodedUrl, $component);

        if (is_array($components)) {
            foreach ($components as &$part) {
                if (is_string($part)) {
                    $part = urldecode($part);
                }
            }
        } else if (is_string($components)) {
            $components = urldecode($components);
        }

        return $components;
    }
}

result:

And can pass in the relevant parameters in parse_urlcomponent, Specify one of PHP_URL_SCHEME, PHP_URL_HOST, PHP_URL_PORT, PHP_URL_USER, PHP_URL_PASS, PHP_URL_PATH, PHP_URL_QUERY or PHP_URL_FRAGMENT to get the string of the specified part of the URL. (Except after being specified as PHP_URL_PORT, an integer value will be returned).

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Due to my limited level, if there are any improper expressions and codes in the article, criticisms and corrections are welcome.