你至少需要PHP版本5.4来实现这个解决方案，而不是在一行中爆炸成一个变量并连接到下一行，但一个简单的一行将是:

$_SERVER["HTTP_HOST"].explode('?', $_SERVER["REQUEST_URI"], 2)[0];

服务器变量:http://php.net/manual/en/reserved.variables.server.php 数组解引用:https://wiki.php.net/rfc/functionarraydereferencing

explode('?', $_SERVER['REQUEST_URI'])[0]

使用PHP Manual - parse_url()来获取您需要的部分。

编辑(例如@Navi Gamage的用法)

你可以这样使用它:

<?php
function reconstruct_url($url){
    $url_parts = parse_url($url);
    $constructed_url = $url_parts['scheme'] . '://' . $url_parts['host'] . $url_parts['path'];

    return $constructed_url;
}

?>

编辑(第二个完整示例):

更新功能，确保方案将附加，没有通知msgs出现:

function reconstruct_url($url){
    $url_parts = parse_url($url);
    $constructed_url = $url_parts['scheme'] . '://' . $url_parts['host'] . (isset($url_parts['path'])?$url_parts['path']:'');

    return $constructed_url;
}

$test = array(
    'http://www.example.com/myurl.html?unwan=abc',
    `http://www.example.com/myurl.html`,
    `http://www.example.com`,
    `https://example.com/myurl.html?unwan=abc&ab=1`
);

foreach($test as $url){
    print_r(parse_url($url));
}

将返回:

Array
(
    [scheme] => http
    [host] => www.example.com
    [path] => /myurl.html
    [query] => unwan=abc
)
Array
(
    [scheme] => http
    [host] => www.example.com
    [path] => /myurl.html
)
Array
(
    [scheme] => http
    [host] => www.example.com
)
Array
(
    [path] => example.com/myurl.html
    [query] => unwan=abc&ab=1
)

这是通过不带第二个参数的parse_url()传递示例url的输出(仅供解释)。

这是使用构造URL后的最终输出:

foreach($test as $url){
    echo reconstruct_url($url) . '<br/>';
}

输出:

http://www.example.com/myurl.html
http://www.example.com/myurl.html
http://www.example.com
https://example.com/myurl.html

试试这个

$url_with_querystring = 'www.example.com/myurl.html?unwantedthngs';
$url_data = parse_url($url_with_querystring);
$url_without_querystring = str_replace('?'.$url_data['query'], '', $url_with_querystring);

如果你想获取请求路径(更多信息):

echo parse_url($_SERVER["REQUEST_URI"])['path']

如果你想删除查询和(也可能是片段):

function strposa($haystack, $needles=array(), $offset=0) {
        $chr = array();
        foreach($needles as $needle) {
                $res = strpos($haystack, $needle, $offset);
                if ($res !== false) $chr[$needle] = $res;
        }
        if(empty($chr)) return false;
        return min($chr);
}
$i = strposa($_SERVER["REQUEST_URI"], ['#', '?']);
echo strrpos($_SERVER["REQUEST_URI"], 0, $i);

你可以试试:

<?php
$this_page = basename($_SERVER['REQUEST_URI']);
if (strpos($this_page, "?") !== false) $this_page = reset(explode("?", $this_page));
?>