提问



我使用此代码获取完整的URL:


$actual_link = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];


问题是我在.htaccess中使用了一些掩码,所以我们在URL中看到的并不总是文件的真实路径。


我需要的是获取URL,URL中写的内容,没有更多,也就是说完整的URL。


我需要了解它在Web浏览器的导航栏中的显示方式,而不是服务器上文件的真实路径。

最佳参考


看一下$_SERVER['REQUEST_URI'],即


$actual_link = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";


(注意双引号字符串语法完全正确)[74]


如果要同时支持HTTP和HTTPS,则可以使用


$actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";


编者注:使用此代码具有安全隐患。客户端可以将HTTP_HOST和REQUEST_URI设置为任意值。

其它参考1


在网页上输出链接的短版本



$url =  "//{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";

$escaped_url = htmlspecialchars( $url, ENT_QUOTES, 'UTF-8' );
echo '<a href="' . $escaped_url . '">' . $escaped_url . '</a>';


以下是有关//example.com/path/格式[75]的问题和边缘情况的更多详细信息


完整版



function url_origin( $s, $use_forwarded_host = false )
{
    $ssl      = ( ! empty( $s['HTTPS'] ) && $s['HTTPS'] == 'on' );
    $sp       = strtolower( $s['SERVER_PROTOCOL'] );
    $protocol = substr( $sp, 0, strpos( $sp, '/' ) ) . ( ( $ssl ) ? 's' : '' );
    $port     = $s['SERVER_PORT'];
    $port     = ( ( ! $ssl && $port=='80' ) || ( $ssl && $port=='443' ) ) ? '' : ':'.$port;
    $host     = ( $use_forwarded_host && isset( $s['HTTP_X_FORWARDED_HOST'] ) ) ? $s['HTTP_X_FORWARDED_HOST'] : ( isset( $s['HTTP_HOST'] ) ? $s['HTTP_HOST'] : null );
    $host     = isset( $host ) ? $host : $s['SERVER_NAME'] . $port;
    return $protocol . '://' . $host;
}

function full_url( $s, $use_forwarded_host = false )
{
    return url_origin( $s, $use_forwarded_host ) . $s['REQUEST_URI'];
}

$absolute_url = full_url( $_SERVER );
echo $absolute_url;


这是http://snipplr.com/view.php?codeview&id=2734的严重修改版本。


网址结构:



方案://用户名:密码 @domain:端口/路径QUERY_STRING#的 fragment_id


功能不包括粗体部分


说明:




  • 此功能不包括完整网址或片段(哈希)的username:password

  • 它不会显示HTTP的默认端口80和HTTPS的端口443。

  • 仅使用http和https方案进行测试。

  • #fragment_id不会被客户端(浏览器)发送到服务器,也不会添加到完整的URL。

  • $_GET只会包含/example?foo=bar1&foo=bar2作为/example?foo=bar1&foo=bar2之类的网址。

  • 某些CMS和环境会重写$_SERVER['REQUEST_URI']并返回/example?foo=bar2作为/example?foo=bar1&foo=bar2之类的网址,在这种情况下使用$_SERVER['QUERY_STRING']

  • 请记住,URI=URL + URN,但由于流行使用,现在URL意味着URI和网址。

  • 如果您不打算使用代理或平衡器,则应删除HTTP_X_FORWARDED_HOST

  • 规范说Host标题必须包含端口号,除非它是默认号码。



客户端(浏览器)控制变量:




  • $_SERVER['REQUEST_URI']。在发送之前,浏览器会对任何不受支持的字符进行编码。

  • $_SERVER['HTTP_HOST']并且根据PHP手册中的评论并不总是可用:http://php.net/manual/en/reserved.variables.php

  • $_SERVER['HTTP_X_FORWARDED_HOST']由平衡器设置,在PHP手册的$_SERVER变量列表中没有提到。



服务器控制的变量:




  • $_SERVER['HTTPS']。客户端选择使用它,但服务器返回空的实际值或on。

  • $_SERVER['SERVER_PORT']。服务器只接受允许的号码作为端口。

  • $_SERVER['SERVER_PROTOCOL']。服务器只接受某些协议。

  • $_SERVER['SERVER_NAME']。它是在服务器配置中手动设置的,根据kralyk不可用于IPv6。



相关:



HTTP_HOST与SERVER_NAME

HTTP主机标头参数中是否需要端口号?

https://stackoverflow.com/a/28049503/175071[76][77][78]

其它参考2


就此而言,只需看看整个数组print_r($_SERVER),你就会看到你需要的一切:)

其它参考3


网址示例: https://example.com/subFolder/yourfile.php?var=blabla#12345


//built-in function 
$x = parse_url($url);
$x['scheme']               🡺 https
$x['host']                 🡺         example.com (or with WWW)
$x['path']                 🡺                    /subFolder/yourfile.php
$x['query']                🡺                                          var=blabla
$x['fragment']             🡺                                                     12345 // hashtag outputed only in case, when hashtag-containing string was manually passed to function, otherwise PHP is unable to recognise hashtags in $_SERVER

//built-in function  (with this function, I only recommend to pass `parse_url`s output as argument)
$A = pathinfo($url);
$B = pathinfo(parse_url($url)['path']);
$A['dirname']              🡺 https://example.com/subFolder
$B['dirname']              🡺                    /subFolder
$A['basename']             🡺                               yourfile.php?var=blabla#12345
$B['basename']             🡺                               yourfile.php
$A['extension']            🡺                                        php?var=blabla#12345
$B['extension']            🡺                                        php
$A['filename']             🡺                               yourfile
$B['filename']             🡺                               yourfile


//=================================================== //
//========== self-defined SERVER variables ========== //
//=================================================== //
$_SERVER["DOCUMENT_ROOT"]  🡺 /home/user/public_html
$_SERVER["SERVER_ADDR"]    🡺 143.34.112.23
$_SERVER["SERVER_PORT"]    🡺 80(or 443 etc..)
$_SERVER["REQUEST_SCHEME"] 🡺 https                                         //similar: $_SERVER["SERVER_PROTOCOL"] 
$_SERVER['HTTP_HOST']      🡺         example.com (or with WWW)             //similar: $_SERVER["ERVER_NAME"]
$_SERVER["REQUEST_URI"]    🡺                       /subFolder/yourfile.php?var=blabla
$_SERVER["QUERY_STRING"]   🡺                                               var=blabla
__FILE__                   🡺 /home/user/public_html/subFolder/yourfile.php
__DIR__                    🡺 /home/user/public_html/subFolder              //same: dirname(__FILE__)
$_SERVER["REQUEST_URI"]    🡺                       /subFolder/yourfile.php?var=blabla
parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH)🡺  /subFolder/yourfile.php 
$_SERVER["PHP_SELF"]       🡺                       /subFolder/yourfile.php

// ==================================================================//
//if "YOURFILE.php" is included in "PARENTFILE.php" , and you visit  "PARENTFILE.PHP?abc":
$_SERVER["SCRIPT_FILENAME"]🡺 /home/user/public_html/parentfile.php
$_SERVER["PHP_SELF"]       🡺                       /parentfile.php
$_SERVER["REQUEST_URI"]    🡺                       /parentfile.php?abc
__FILE__                   🡺 /home/user/public_html/subFolder/yourfile.php

// =================================================== //
// ================= handy variables ================= //
// =================================================== //
//If site uses HTTPS:
$HTTP_or_HTTPS = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS']!=='off') || $_SERVER['SERVER_PORT']==443) ? 'https://':'http://' );            //in some cases, you need to add this condition too: if ('https'==$_SERVER['HTTP_X_FORWARDED_PROTO'])  ...

//To trim values to filename, i.e. 
basename($url)             🡺 yourfile.php

//excellent solution to find origin
$debug_files = debug_backtrace();       $initial_called_file = count($debug_files) ? $debug_files[count($debug_files) - 1]['file'] : __FILE__;


注意!:



  • hastag(#...)url部分无法从PHP(服务器端)检测到。为此,请使用Javascript。

  • DIRECTORY_SEPARATOR为Windows类型的托管返回​​\,而不是/










对于WordPress



//(let's say, if wordpress is installed in subdirectory:  http://example.com/wpdir/)
home_url()                      🡺 http://example.com/wpdir/        //if is_ssl() is true, then it will be "https"
get_stylesheet_directory_uri()  🡺 http://example.com/wpdir/wp-content/themes/THEME_NAME  [same: get_bloginfo('template_url') ]
get_stylesheet_directory()      🡺 /home/user/public_html/wpdir/wp-content/themes/THEME_NAME
plugin_dir_url(__FILE__)        🡺 http://example.com/wpdir/wp-content/themes/PLUGIN_NAME
plugin_dir_path(__FILE__)       🡺 /home/user/public_html/wpdir/wp-content/plugins/PLUGIN_NAME/  

其它参考4


这是一个使用三元语句的解决方案,保持代码最小:[83]


$url = "http" . (($_SERVER['SERVER_PORT'] == 443) ? "s" : "") . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];


这是最小和最简单的方法,假设一个人的Web服务器使用HTTPS的标准端口443。[84]

其它参考5


我最喜欢的跨平台查找当前URL的方法是:


$url = (isset($_SERVER['HTTPS']) ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

其它参考6


只需使用:


$uri = $_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']

其它参考7


function full_path()
{
    $s = &$_SERVER;
    $ssl = (!empty($s['HTTPS']) && $s['HTTPS'] == 'on') ? true:false;
    $sp = strtolower($s['SERVER_PROTOCOL']);
    $protocol = substr($sp, 0, strpos($sp, '/')) . (($ssl) ? 's' : '');
    $port = $s['SERVER_PORT'];
    $port = ((!$ssl && $port=='80') || ($ssl && $port=='443')) ? '' : ':'.$port;
    $host = isset($s['HTTP_X_FORWARDED_HOST']) ? $s['HTTP_X_FORWARDED_HOST'] : (isset($s['HTTP_HOST']) ? $s['HTTP_HOST'] : null);
    $host = isset($host) ? $host : $s['SERVER_NAME'] . $port;
    $uri = $protocol . '://' . $host . $s['REQUEST_URI'];
    $segments = explode('?', $uri, 2);
    $url = $segments[0];
    return $url;
}


注意:我刚刚对Timo Huovinen的代码进行了更新,所以你不会在URL中获得任何内容。这个URL很简单并删除诸如?hi=i& am=a& get之类的内容。


例:


http://www.website.com/index?get=information


将显示为:


http://www.website.com/index


除非你使用Get来定义一些特定内容,否则请使用他的代码!:-)

其它参考8


清除代码,适用于所有Web服务器(Apache,nginx,IIS,...):


$url = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

其它参考9


这是我的解决方案 - 代码的灵感来自Tracy Debugger。它被更改为支持不同的服务器端口。您可以获得包括$_SERVER['REQUEST_URI']或基本服务器URL的完整当前URL。检查我的功能:[85]


function getCurrentUrl($full = true) {
    if (isset($_SERVER['REQUEST_URI'])) {
        $parse = parse_url(
            (isset($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'off') ? 'https://' : 'http://') .
            (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : (isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : '')) . (($full) ? $_SERVER['REQUEST_URI'] : null)
        );
        $parse['port'] = $_SERVER["SERVER_PORT"]; // Setup protocol for sure (80 is default)
        return http_build_url('', $parse);
    }
}


这是测试代码:


// Follow $_SERVER variables was set only for test
$_SERVER['HTTPS'] = 'off'; // on
$_SERVER['SERVER_PORT'] = '9999'; // Setup
$_SERVER['HTTP_HOST'] = 'some.crazy.server.5.name:8088'; // Port is optional there
$_SERVER['REQUEST_URI'] = '/150/tail/single/normal?get=param';

echo getCurrentUrl();
// http://some.crazy.server.5.name:9999/150/tail/single/normal?get=param

echo getCurrentUrl(false);
// http://some.crazy.server.5.name:9999/

其它参考10


我已经使这个功能来处理URL:


 <?php
     function curPageURL()
     {
         $pageURL = 'http';
         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
         $pageURL .= "://";
         if ($_SERVER["SERVER_PORT"] != "80") {
             $pageURL .=
             $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
         }
         else {
             $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
         }
         return $pageURL;
     }
 ?>

其它参考11


与接受的答案相同的技术,但支持HTTPS,更具可读性:[86]


$current_url = sprintf(
    '%s://%s/%s',
    isset($_SERVER['HTTPS']) ? 'https' : 'http',
    $_SERVER['HTTP_HOST'],
    $_SERVER['REQUEST_URI']
);

其它参考12


使用此单行查找父文件夹URL(如果您无权访问pecl_http附带的http_build_url()):


$url = (isset($_SERVER['HTTPS']) ? 'https://' : 'http://').$_SERVER['SERVER_NAME'].str_replace($_SERVER['DOCUMENT_ROOT'], '', dirname(dirname(__FILE__)));

其它参考13


我已经让这个类来处理我的URI了


<?php
/** -------------------------------------------------------------------------------------------------------------------
 * URI CLASS
 * URI management class
 *
 * @author Sandu Liviu Catalin
 * @email slc(dot)universe(at)gmail(dot)com
 * @license Public Domain
**/
abstract class _URI
{
    /** ---------------------------------------------------------------------------------------------------------------
     *  - BASE PARAMETERS
     * $_Script_Hidden - Hide the script name from the returned URI
     * $_Public_Path - Location where public resources are stored
     * $_Public_Relative - Return the relative path version of public location
     * $_Public_Skin - Is the skin directory located in the public directory
     * $_Skin_Path - Location where skins are stored
     * $_Skin_Relative - Return the relative path version of skin location
     * $_Skin_Default - Use this as the default system skin
     * $_Fallback_Base - Use this base URL if you can't extract the current URL
     * $_Fallback_Scheme - Use this scheme if you can't find it automatically
     * $_Fallback_User - Use this user name if you can't find it automatically
     * $_Fallback_Passwd - Use this password if you can't find it automatically
     * $_Fallback_Host - Use this host if you can't find it automatically
     * $_Fallback_Port - Use this port number if you can't find it automatically
     * $_Fallback_Script - Use this script name if you can't find it automatically
     * $_Separator_Scheme - Use this to separate the scheme from the rest of the url
     * $_Separator_Credentials - Use this to separate the user name from the password
     * $_Separator_Auth - Use this to separate the user name and password from host
     * $_Separator_Port - Use this to separate the port number from host
     * $_Separator_Query - Use this to separate the query data from base URL
     * $_Separator_Fragment - Use this to separate the fragment data from query data
    */
    protected static $_Script_Hidden;
    protected static $_Public_Path;
    protected static $_Public_Relative;
    protected static $_Public_Skin;
    protected static $_Skin_Path;
    protected static $_Skin_Relative;
    protected static $_Skin_Default;
    protected static $_Fallback_Base;
    protected static $_Fallback_Scheme;
    protected static $_Fallback_User;
    protected static $_Fallback_Passwd;
    protected static $_Fallback_Host;
    protected static $_Fallback_Port;
    protected static $_Fallback_Script;
    protected static $_Separator_Scheme;
    protected static $_Separator_Credentials;
    protected static $_Separator_Auth;
    protected static $_Separator_Port;
    protected static $_Separator_Query;
    protected static $_Separator_Fragment;

    /** ----------------------------------------------------------------------------------------------------------------
     * CACHED BASES
     * Precompiled common URLs for quick retrieval
    */
    protected static $Base_Host;
    protected static $Base_App;
    protected static $Base_Script;
    protected static $Base_Current;
    protected static $Base_Public;
    protected static $Base_Skin;

    /** ----------------------------------------------------------------------------------------------------------------
     * DATA CONTAINERS
     * Raw URI segments saved from extracted data
    */
    protected static $__Segments = array(
        'SCHEME' => '',
        'USER' => '',
        'PASSWD' => '',
        'HOST' => '',
        'PORT' => '',
        'PATH' => '',
        'SCRIPT' => '',
        'INFO' => '',
        'QUERY' => '',
    );

    /** ----------------------------------------------------------------------------------------------------------------
     * PARSER KEYWORDS
     * URI data asigned to specific keywords.
    */
    protected static $__Parsers;

    /** ----------------------------------------------------------------------------------------------------------------
     * CLASS INITIALIZER
     * Initialize the class
     *
     * @access public
     * @param $Params [array] - An associative array of supported parrameters
     * @return void
    */
    public static function __Init($Params=array())
    {
        // Configure the class
        self::$_Script_Hidden = (isset($Params['Script_Hidden'])) ? $Params['Script_Hidden'] : FALSE;
        self::$_Public_Path = (isset($Params['Public_Path'])) ? $Params['Public_Path'] : 'public';
        self::$_Public_Relative = (isset($Params['Public_Relative'])) ? $Params['Public_Relative'] : TRUE;
        self::$_Public_Skin = (isset($Params['Public_Skin'])) ? $Params['Public_Skin'] : TRUE;
        self::$_Skin_Path = (isset($Params['Skin_Path'])) ? $Params['Skin_Path'] : 'themes';
        self::$_Skin_Relative = (isset($Params['Skin_Relative'])) ? $Params['Skin_Relative'] : TRUE;
        self::$_Skin_Default = (isset($Params['Skin_Default'])) ? $Params['Skin_Default'] : 'default';
        self::$_Fallback_Base = (isset($Params['Fallback_Base'])) ? $Params['Fallback_Base'] : '127.0.0.1';
        self::$_Fallback_Scheme = (isset($Params['Fallback_Scheme'])) ? $Params['Fallback_Scheme'] : 'http';
        self::$_Fallback_User = (isset($Params['Fallback_User'])) ? $Params['Fallback_User'] : '';
        self::$_Fallback_Passwd = (isset($Params['Fallback_Passwd'])) ? $Params['Fallback_Passwd'] : '';
        self::$_Fallback_Host = (isset($Params['Fallback_Host'])) ? $Params['Fallback_Host'] : '127.0.0.1';
        self::$_Fallback_Port = (isset($Params['Fallback_Port'])) ? $Params['Fallback_Port'] : '';
        self::$_Fallback_Script = (isset($Params['Fallback_Script'])) ? $Params['Fallback_Script'] : 'index.php';
        self::$_Separator_Scheme = (isset($Params['Separator_Scheme'])) ? $Params['Separator_Scheme'] : '://';
        self::$_Separator_Credentials = (isset($Params['Separator_Credentials'])) ? $Params['Separator_Credentials'] : ':';
        self::$_Separator_Auth = (isset($Params['Separator_Auth'])) ? $Params['Separator_Auth'] : '@';
        self::$_Separator_Port = (isset($Params['Separator_Port'])) ? $Params['Separator_Port'] : ':';
        self::$_Separator_Query = (isset($Params['Separator_Query'])) ? $Params['Separator_Query'] : '?';
        self::$_Separator_Fragment = (isset($Params['Separator_Fragment'])) ? $Params['Separator_Fragment'] : '#';
        // Do some clean up of the configurations
        self::$_Public_Path = implode('/', explode('/', str_replace(array('/', '\\'), '/', self::$_Public_Path)));
        self::$_Skin_Path = implode('/', explode('/', str_replace(array('/', '\\'), '/', self::$_Skin_Path)));
        // Extract the URL information
        self::Extract();
        // Precompile common bases
        self::$Base_Host = self::Compile('HOST');
        self::$Base_App = self::Compile('PATH');
        self::$Base_Script = self::$Base_App.(self::$_Script_Hidden ? '' : '/'.self::$__Segments['SCRIPT']);
        self::$Base_Current = self::$Base_Script.(empty(self::$__Segments['INFO']) ? '' : '/'.self::$__Segments['INFO']);
        self::$Base_Public = self::$_Public_Relative ? self::$_Public_Path : self::$Base_App.'/'.self::$_Public_Path;
        self::$Base_Skin = self::$_Skin_Relative ? self::$_Skin_Path : self::$Base_Public.'/'.self::$_Skin_Path;
        self::$Base_Skin .= '/'.self::$_Skin_Default;
        // Setup the parsers
        self::$__Parsers['SR_Key'][] = '%HostBase%';
        self::$__Parsers['SR_Data'][] =& self::$Base_Host;
        self::$__Parsers['SR_Key'][] = '%AppBase%';
        self::$__Parsers['SR_Data'][] =& self::$Base_App;
        self::$__Parsers['SR_Key'][] = '%ScriptBase%';
        self::$__Parsers['SR_Data'][] =& self::$Base_Script;
        self::$__Parsers['SR_Key'][] = '%CurrentBase%';
        self::$__Parsers['SR_Data'][] =& self::$Base_Current;
        self::$__Parsers['SR_Key'][] = '%PublicBase%';
        self::$__Parsers['SR_Data'][] =& self::$Base_Public;
        self::$__Parsers['SR_Key'][] = '%SkinBase%';
        self::$__Parsers['SR_Data'][] =& self::$Base_Skin;
        self::$__Parsers['SR_Data'][] =& self::$__Segments['SCHEME'];
        self::$__Parsers['SR_Key'][] = '%UserSegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['USER'];
        self::$__Parsers['SR_Key'][] = '%PasswdSegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['PASSWD'];
        self::$__Parsers['SR_Key'][] = '%HostSegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['HOST'];
        self::$__Parsers['SR_Key'][] = '%PortSegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['PORT'];
        self::$__Parsers['SR_Key'][] = '%PathSegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['PATH'];
        self::$__Parsers['SR_Key'][] = '%ScriptSegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['SCRIPT'];
        self::$__Parsers['SR_Key'][] = '%InfoSegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['INFO'];
        self::$__Parsers['SR_Key'][] = '%QuerySegment%';
        self::$__Parsers['SR_Data'][] =& self::$__Segments['QUERY'];
        self::$__Parsers['SR_Key'][] = '%PublicPath%';
        self::$__Parsers['SR_Data'][] =& self::$_Public_Path;
        self::$__Parsers['SR_Key'][] = '%SkinPath%';
        self::$__Parsers['SR_Data'][] =& self::$_Skin_Path;
        self::$__Parsers['SR_Key'][] = '%DefaultSkin%';
        self::$__Parsers['SR_Data'][] =& self::$_Skin_Default;
        // Everything OK so far
    }

    /** ----------------------------------------------------------------------------------------------------------------
     * URI EXTRACTOR
     * Try every posibility to obtain all the segments of the current URL
     *
     * @access public
     * @return array
    */
    public static function Extract()
    {
        // No point in executing twice to get the same result
        if (!empty(self::$__Segments['HOST'])) return self::$__Segments;
        // Let's try to have a falback for most basic data
        $Script_URI = (isset($_SERVER['SCRIPT_URI'])) ? parse_url($_SERVER['SCRIPT_URI']) : array();
        if (empty($Script_URI)) {
            $Script_URI = parse_url(self::$_Fallback_Base);
        }
        // Try ever possibility to obtain the data that surounds the script name
        if (isset($_SERVER['PHP_SELF'])) {
            $Script_Path = $_SERVER['PHP_SELF'];
        } elseif (isset($_SERVER['REQUEST_URI'])) {
            $Script_Path = preg_replace('/\?.*/', '', $_SERVER['REQUEST_URI']);
        } elseif (isset($Script_URI['path'])) {
            $Script_Path = $Script_URI['path'];
        } elseif (isset($_SERVER['SCRIPT_NAME'])) {
            $Script_Path = isset($_SERVER['SCRIPT_NAME']).(isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '');
        } elseif (isset($_SERVER['DOCUMENT_ROOT']) && isset($_SERVER['SCRIPT_FILENAME'])) {
            $Script_Path = substr($_SERVER['SCRIPT_FILENAME'], strlen($_SERVER['DOCUMENT_ROOT']),
                                    (strlen($_SERVER['SCRIPT_FILENAME'])-strlen($_SERVER['DOCUMENT_ROOT'])));
            $Script_Path .= (isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '');
        } else {
            $Script_Path = '';
        }
        // Explode the previously extracted data
        if (strlen($Script_Path) > 0) {
            $Script_Path = preg_split('/[\/]/', $Script_Path, -1, PREG_SPLIT_NO_EMPTY);
        } else {
            $Script_Path = array();
        }
        // Try to obtain the name of the currently executed script
        if (isset($_SERVER['SCRIPT_FILENAME'])) {
            $Script_Name = basename($_SERVER['SCRIPT_FILENAME']);
        } elseif (isset($_SERVER['SCRIPT_NAME'])) {
            $Script_Name = basename($_SERVER['SCRIPT_NAME']);
        } else {
            $Script_Name = self::$_Fallback_Script;
        }
        // Try to find the name of the script in the script path
        $Script_Split = (is_string($Script_Name)) ? array_search($Script_Name, $Script_Path, TRUE) : NULL;
        // Try to obtain the request scheme
        if (isset($_SERVER['REQUEST_SCHEME'])) {
            self::$__Segments['SCHEME'] = $_SERVER['REQUEST_SCHEME'];
        } elseif (isset($_SERVER['SERVER_PROTOCOL'])) {
            self::$__Segments['SCHEME'] = strtolower($_SERVER['SERVER_PROTOCOL']);
            self::$__Segments['SCHEME'] = substr(self::$__Segments['SCHEME'], 0, strpos(self::$__Segments['SCHEME'], '/'));
            self::$__Segments['SCHEME'] .= (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == 'on') ? 's' : '';
        } elseif (isset($Script_URI['scheme'])) {
            self::$__Segments['SCHEME'] = $Script_URI['scheme'];
        } else {
            self::$__Segments['SCHEME'] = self::$_Fallback_Scheme;
        }
        // Try to obtain the user name (if one was used)
        if (isset($_SERVER['PHP_AUTH_USER'])) {
            self::$__Segments['USER'] = $_SERVER['PHP_AUTH_USER'];
        } elseif (isset($Script_URI['user'])) {
            self::$__Segments['USER'] = $Script_URI['user'];
        } else {
            self::$__Segments['USER'] = self::$_Fallback_User;
        }
        // Try to obtain the user password (if one was used)
        if (isset($_SERVER['PHP_AUTH_PW'])) {
            self::$__Segments['PASSWD'] = $_SERVER['PHP_AUTH_PW'];
        } elseif (isset($Script_URI['pass'])) {
            self::$__Segments['PASSWD'] = $Script_URI['pass'];
        } else {
            self::$__Segments['PASSWD'] = self::$_Fallback_Passwd;
        }
        // Try to obtai the host name
        if (isset($_SERVER['SERVER_NAME'])) {
            self::$__Segments['HOST'] = $_SERVER['SERVER_NAME'];
        } elseif (isset($_SERVER['HTTP_HOST'])) {
            self::$__Segments['HOST'] = $_SERVER['HTTP_HOST'];
        } elseif (isset($Script_URI['host'])) {
            self::$__Segments['HOST'] = $Script_URI['host'];
        } else {
            self::$__Segments['HOST'] = self::$_Fallback_Host;
        }
        // Try to obtain the port number (if one was used)
        if (isset($Script_URI['port'])) {
            self::$__Segments['PORT'] = $Script_URI['port'];
        } else {
            self::$__Segments['PORT'] = self::$_Fallback_Port;
        }
        // Try to obtain the path to the script
        if (is_numeric($Script_Split)) {
            self::$__Segments['PATH'] = implode('/', array_slice($Script_Path, 0, $Script_Split, TRUE));
        } else {
            self::$__Segments['PATH'] = '';
        }
        // Try to obtain the Script name
        if (is_string($Script_Name)) {
            self::$__Segments['SCRIPT'] = $Script_Name;
        } else {
            self::$__Segments['SCRIPT'] = '';
        }
        // Try to obtain any passed info
        if (isset($_SERVER['PATH_INFO'])) {
            self::$__Segments['INFO'] = implode('/', preg_split('/[\/]/', $_SERVER['PATH_INFO'], -1, PREG_SPLIT_NO_EMPTY));
        } elseif (is_numeric($Script_Split)) {
            self::$__Segments['INFO'] = implode('/', array_slice($Script_Path, $Script_Split+1));
        } else {
            self::$__Segments['INFO'] = '';
        }
        // -----Pending Feature: Try to also extract the query string

        // Return the extracted URI segments
        return self::$__Segments;

    }

    /** ----------------------------------------------------------------------------------------------------------------
     * URI COMPILER
     * Compile raw URI segments into a usable URL
     *
     * @access public
     * @param $Until [string] - The name of the segment where compilation should stop and return
     * @return string
    */
    public static function Compile($Until=NULL)
    {
        $URI= '';
        $Until = (is_string($Until)) ? strtoupper($Until) : $Until;
        if ($Until === 'SCHEME') {
            return $URI .= (self::$__Segments['SCHEME'] !== '') ? self::$__Segments['SCHEME'].self::$_Separator_Scheme : '';
        } else {
            $URI .= (self::$__Segments['SCHEME'] !== '') ? self::$__Segments['SCHEME'].self::$_Separator_Scheme : '';
        }
        if ($Until === 'USER') {
            return $URI .= (self::$__Segments['USER'] !== '') ? self::$__Segments['USER'].self::$_Separator_Credentials : '';
        } else {
            $URI .= (self::$__Segments['USER'] !== '') ? self::$__Segments['USER'] : '';
        }
        $URI .= (self::$__Segments['USER'] !== '' || self::$__Segments['PASSWD'] !== '') ? self::$_Separator_Credentials : '';
        if ($Until === 'PASSWD') {
            return $URI .= (self::$__Segments['PASSWD'] !== '') ? self::$__Segments['PASSWD'].self::$_Separator_Auth : '';
        } else {
            $URI .= (self::$__Segments['PASSWD'] !== '') ? self::$__Segments['PASSWD'] : '';
        }
        $URI .= (self::$__Segments['USER'] !== '' || self::$__Segments['PASSWD'] !== '') ? self::$_Separator_Auth : '';
        if ($Until === 'HOST') {
            return $URI .= (self::$__Segments['HOST'] !== '') ? self::$__Segments['HOST'] : '';
        } else {
            $URI .= (self::$__Segments['HOST'] !== '') ? self::$__Segments['HOST'] : '';
        }
        if ($Until === 'PORT') {
            return $URI .= (self::$__Segments['PORT'] !== '') ? self::$_Separator_Port.self::$__Segments['PORT'] : '';
        } else {
            $URI .= (self::$__Segments['PORT'] !== '') ? self::$_Separator_Port.self::$__Segments['PORT'] : '';
        }
        if ($Until === 'PATH') {
            return $URI .= (self::$__Segments['PATH'] !== '') ? '/'.self::$__Segments['PATH'] : '';
        } else {
            $URI .= (self::$__Segments['PATH'] !== '') ? '/'.self::$__Segments['PATH'] : '';
        }
        if ($Until === 'SCRIPT') {
            return $URI .= (self::$__Segments['SCRIPT'] !== '') ? '/'.self::$__Segments['SCRIPT'] : '';
        } else {
            $URI .= (self::$__Segments['SCRIPT'] !== '') ? '/'.self::$__Segments['SCRIPT'] : '';
        }
        if ($Until === 'INFO') {
            return $URI .= (self::$__Segments['INFO'] !== '') ? '/'.self::$__Segments['INFO'] : '';
        } else {
            $URI .= (self::$__Segments['INFO'] !== '') ? '/'.self::$__Segments['INFO'] : '';
        }
        return $URI;
    }

    /** ----------------------------------------------------------------------------------------------------------------
     * SEGMENT RETRIEVER
     * Return a specific URI segment
     *
     * @access public
     * @param $Name [string] - The name of the segment you want
     * @return string (on success) bool (on failure)
    */
    public static function Segment($Name)
    {
        if (isset(self::$__Segments[$Name])) {
            return self::$__Segments[$Name];
        } return FALSE;
    }

    /** ----------------------------------------------------------------------------------------------------------------
     * BASE RETRIEVER
     * Return a specific precompiled base
     *
     * @access public
     * @param $Name [string] - The name of the base you want
     * @return mixed (on success) boolean (on failure)
    */
    public static function Base($Name)
    {
        switch ($Name) {
            case 'Host':
            case 'Domain':
                return self::$Base_Host;
            break;
            case 'App':
            case 'Base':
                return self::$Base_App;
            break;
            case 'Script':
            case 'Index':
                return self::$Base_Script;
            break;
            case 'Current':
            case 'This':
                return self::$Base_Current;
            break;
            case 'Public':
            case 'Web':
                return self::$Base_Public;
            break;
            case 'Skin':
            case 'Theme':
                return self::$Base_Skin;
            break;
            case 'All':
                return array(
                    'Host'=>self::$Base_Host,
                    'App'=>self::$Base_App,
                    'Script'=>self::$Base_Script,
                    'Current'=>self::$Base_Current,
                    'Public'=>self::$Base_Public,
                    'Skin'=>self::$Base_Skin,
                );
            break;
        } return FALSE;
    }

    /** ----------------------------------------------------------------------------------------------------------------
     * STRING PARSER
     * Replace known keywords in the specified string with current URI data
     *
     * @access public
     * @param $String [string] - A string that you want to parse
     * @return void
    */
    public static function Parse($String)
    {
        if (is_string($String)) {
            return str_replace(self::$__Parsers['SR_Key'], self::$__Parsers['SR_Data'], $String);
        } elseif (is_array($String)) {
            foreach ($String as $K => $V) {
                $Parsed[$K] = self::$replace($V);
            } return $Parsed;
        } return FALSE;
    }
}
if (isset($_URI_Params)) {
    _URI::__Init($_URI_Params);
} else {
    _URI::__Init();
} 


当然,你必须根据自己的需求和系统进行调整!?!


<?php
// Change a few parameters before loading the class.
$_URI_Params = array(
    'Public_Relative' => FALSE,
    'Skin_Relative' => FALSE,
    'Skin_Default' => 'classic',
    // etc.
);
// Get the URI class
require('uri.php');
// Output all extracted URI segments
echo '<pre>';
var_dump(_URI::Extract());
echo '</pre>';
// Output extracted segments individually
echo 'Scheme: '._URI::Segment('SCHEME').'<br/>';
echo 'User: '._URI::Segment('USER').'<br/>';
echo 'Password: '._URI::Segment('PASSWD').'<br/>';
echo 'Host: '._URI::Segment('HOST').'<br/>';
echo 'Port: '._URI::Segment('PORT').'<br/>';
echo 'Path: '._URI::Segment('PATH').'<br/>';
echo 'Script: '._URI::Segment('SCRIPT').'<br/>';
echo 'Info: '._URI::Segment('INFO').'<br/>';
// Compile extracted segments into a usable URL
echo '<br/>';
echo 'Full Compiled URI: '._URI::Compile().'<br/>';
echo '<br/>';
// Output precompiled common bases for a faster result and better performance
echo 'Host Base: '._URI::Base('Host').'<br/>';
echo 'Application Base: '._URI::Base('App').'<br/>';
echo 'Running Script: '._URI::Base('Script').'<br/>';
echo 'Current URI Base: '._URI::Base('Current').'<br/>';
echo 'Public Folder Base: '._URI::Base('Public').'<br/>';
echo 'Skin Folder Base: '._URI::Base('Skin').'<br/>';
// Get all the precompiled bases in an associative array
echo '<pre>';
var_dump(_URI::Base('All'));
echo '</pre>';
// Parse an example string and replace known keys with actual URI data.
echo _URI::Parse('This is my current domain: %HostBase%
And the current application is here: %AppBase%
I load my skins form: %SkinBase%
etc.
'); 


它仍然需要完善,但它是集中式URI系统的上帝解决方案:D

其它参考14


这对您的Apache环境变量来说非常容易。这仅适用于Apache 2,我假设您正在使用它。


只需使用以下PHP代码:


<?php
    $request_url = apache_getenv("HTTP_HOST") . apache_getenv("REQUEST_URI");
    echo $request_url;
?>

其它参考15


尝试这个:


print_r($_SERVER);


$_SERVER是一个包含标题,路径和脚本位置等信息的数组。此阵列中的条目由Web服务器创建。无法保证每个Web服务器都能提供这些服务;服务器可能省略一些,或提供此处未列出的其他服务器。也就是说,在»CGI/1.1规范中考虑了大量这些变量,因此您应该能够期待这些变量。


$HTTP_SERVER_VARS包含相同的初始信息,但不是超全局信息。 (注意$HTTP_SERVER_VARS$_SERVER是不同的变量,PHP会这样处理它们)

其它参考16


这是您的问题的解决方案:


//Fetch page URL by this

$url = $_SERVER['REQUEST_URI'];
echo "$url<br />";

//It will print
//fetch host by this

$host=$_SERVER['HTTP_HOST'];
echo "$host<br />";

//You can fetch the full URL by this

$fullurl = "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
echo $fullurl;

其它参考17


您可以使用不带参数的http_build_url来获取当前页面的完整URL:[87] [88]


$url = http_build_url();

其它参考18


我用这个说法。


$base = "http://$_SERVER[SERVER_NAME]:$_SERVER[SERVER_PORT]$my_web_base_path";
$url = $base . "/" . dirname(dirname(__FILE__));


我希望这能帮到您。

其它参考19


尝试这个:


$pageURL = $_SERVER['HTTPS'] == 'on' ? 'https://' : 'http://';
$pageURL .= $_SERVER['SERVER_PORT'] != '80' ? $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"] : $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
echo $pageURL;

其它参考20


我使用了下面的代码,对我来说,它适用于HTTP和HTTPS两种情况。


function curPageURL() {
  if(isset($_SERVER["HTTPS"]) && !empty($_SERVER["HTTPS"]) && ($_SERVER["HTTPS"] != 'on' )) {
        $url = 'https://'.$_SERVER["SERVER_NAME"];//https url
  }  else {
    $url =  'http://'.$_SERVER["SERVER_NAME"];//http url
  }
  if(( $_SERVER["SERVER_PORT"] != 80 )) {
     $url .= $_SERVER["SERVER_PORT"];
  }
  $url .= $_SERVER["REQUEST_URI"];
  return $url;
}

echo curPageURL();


演示[89]

其它参考21


$base_dir = __DIR__; // Absolute path to your installation, ex: /var/www/mywebsite
$doc_root = preg_replace("!{$_SERVER['SCRIPT_NAME']}$!", '', $_SERVER['SCRIPT_FILENAME']); # ex: /var/www
$base_url = preg_replace("!^{$doc_root}!", '', $base_dir); # ex: '' or '/mywebsite'
$base_url = str_replace('\\', '/', $base_url);//On Windows
$base_url = str_replace($doc_root, '', $base_url);//On Windows
$protocol = empty($_SERVER['HTTPS']) ? 'http' : 'https';
$port = $_SERVER['SERVER_PORT'];
$disp_port = ($protocol == 'http' && $port == 80 || $protocol == 'https' && $port == 443) ? '' : ":$port";
$domain = $_SERVER['SERVER_NAME'];
$full_url = "$protocol://{$domain}{$disp_port}{$base_url}"; # Ex: 'http://example.com', 'https://example.com/mywebsite', etc. 



  资源:
  http://blog.lavoie.sl/2013/02/php-document-root-path-and-url-detection.html[90]


其它参考22


您可以使用HTTP_ORIGIN,如下面的代码段所示:


if ( ! array_key_exists( 'HTTP_ORIGIN', $_SERVER ) ) {
    $this->referer = $_SERVER['SERVER_NAME'];
} else {
    $this->referer = $_SERVER['HTTP_ORIGIN'];
}

其它参考23


使用非常简单:


function current_url() {
    $current_url  = ( $_SERVER["HTTPS"] != 'on' ) ? 'http://'.$_SERVER["SERVER_NAME"] :  'https://'.$_SERVER["SERVER_NAME"];
    $current_url .= ( $_SERVER["SERVER_PORT"] != 80 ) ? ":".$_SERVER["SERVER_PORT"] : "";
    $current_url .= $_SERVER["REQUEST_URI"];

    return $current_url;
}

其它参考24


我认为这种方法很好..它


if($_SERVER['HTTP_HOST'] == "localhost"){
    define('SITEURL', 'http://' . $_SERVER['HTTP_HOST']);
    define('SITEPATH', $_SERVER['DOCUMENT_ROOT']);
    define('CSS', $_SERVER['DOCUMENT_ROOT'] . '/css/');
    define('IMAGES', $_SERVER['DOCUMENT_ROOT'] . '/images/');
}
else{
    define('SITEURL', 'http://' . $_SERVER['HTTP_HOST']);
    define('SITEPATH', $_SERVER['DOCUMENT_ROOT']);
    define('TEMPLATE', $_SERVER['DOCUMENT_ROOT'] . '/incs/template/');
    define('CSS', $_SERVER['DOCUMENT_ROOT'] . '/css/');
    define('IMAGES', $_SERVER['DOCUMENT_ROOT'] . '/images/');
}

其它参考25


这适用于HTTP和HTTPS。


echo 'http' . (($_SERVER['HTTPS'] == 'on') ? 's' : '') . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];


输出这样的东西。



  https://example.com/user.php?token=3f0d9sickc0flmg8hnsngk5u07\u0026amp;access_level=application[91]


其它参考26


$page_url = (isset($_SERVER['HTTPS']) ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";


更多信息:https://codeupweb.wordpress.com/2017/10/11/how-to-get-the-full-url-of-page-using-php/[92]

其它参考27


这是接受答案的更安全版本的基础,使用PHP的filter_input函数,它也弥补了$_SERVER['REQUEST_URI']的潜在缺失:[93]


$protocol_https = filter_input(INPUT_SERVER, 'HTTPS', FILTER_SANITIZE_STRING);
$host = filter_input(INPUT_SERVER, 'HTTP_HOST', FILTER_SANITIZE_URL);
$request_uri = filter_input(INPUT_SERVER, 'REQUEST_URI', FILTER_SANITIZE_URL);
if(strlen($request_uri) == 0)
{
    $request_uri = filter_input(INPUT_SERVER, 'SCRIPT_NAME', FILTER_SANITIZE_URL);
    $query_string = filter_input(INPUT_SERVER, 'QUERY_STRING', FILTER_SANITIZE_URL);
    if($query_string)
    {
        $request_uri .= '?' . $query_string;
    }
}
$full_url = ($protocol_https ? 'https' : 'http') . '://' . $host . $request_uri;


您可以使用一些不同的过滤器来根据自己的喜好进行调整。[94]

其它参考28


由于我对最佳答案的编辑被回滚,我将其作为一个单独的答案发布:



  HTTP_HOST和REQUEST_URI必须使用引号,否则会在PHP 7.2中引发错误



使用:


$actual_link = 'https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];


如果要同时支持HTTP和HTTPS:


$actual_link = (isset($_SERVER['HTTPS']) ? 'https' : 'http').'://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];

其它参考29


public static function getCurrentURL()
{
    $protocol = strpos(strtolower($_SERVER['SERVER_PROTOCOL']), 'https') === false ? 'http' : 'https';
    $host = $_SERVER['HTTP_HOST'];
    $script = $_SERVER['SCRIPT_NAME'];
    $params = $_SERVER['QUERY_STRING'] == '' ? '' : '?' . $_SERVER['QUERY_STRING'];

    return $protocol . '://' . $host . $script . $params;
}