如何使用 PHP 获取基本 URL？
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How do I get the base URL with PHP?
提问by shin
I am using XAMPPon Windows Vista. In my development, I have http://127.0.0.1/test_website/.
我在 Windows Vista 上使用XAMPP。在我的发展中，我有http://127.0.0.1/test_website/.
How do I get http://127.0.0.1/test_website/with PHP?
我如何http://127.0.0.1/test_website/使用 PHP？
I tried something like these, but none of them worked.
我尝试过类似的方法，但都没有奏效。
echo dirname(__FILE__)
or
echo basename(__FILE__);
etc.
回答by ma?ek
Try this:
尝试这个：
<?php echo "http://" . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']; ?>
Learn more about the $_SERVERpredefined variable.
了解有关$_SERVER预定义变量的更多信息。
If you plan on using https, you can use this:
如果你打算使用 https，你可以使用这个：
function url(){
return sprintf(
"%s://%s%s",
isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' ? 'https' : 'http',
$_SERVER['SERVER_NAME'],
$_SERVER['REQUEST_URI']
);
}
echo url();
#=> http://127.0.0.1/foo
Per this answer, please make sure to configure your Apache properly so you can safely depend on SERVER_NAME.
根据这个答案，请确保正确配置您的 Apache，以便您可以安全地依赖SERVER_NAME.
<VirtualHost *>
ServerName example.com
UseCanonicalName on
</VirtualHost>
NOTE: If you're depending on the HTTP_HOSTkey (which contains user input), you still have to make some cleanup, remove spaces, commas, carriage return, etc. Anything that is not a valid character for a domain. Check the PHP builtin parse_urlfunction for an example.
注意：如果您依赖于HTTP_HOST键（包含用户输入），您仍然需要进行一些清理、删除空格、逗号、回车等。任何对域来说不是有效字符的东西。以 PHP 内置的parse_url函数为例。
回答by ftrotter
Function adjusted to execute without warnings:
功能调整为在没有警告的情况下执行：
function url(){
if(isset($_SERVER['HTTPS'])){
$protocol = ($_SERVER['HTTPS'] && $_SERVER['HTTPS'] != "off") ? "https" : "http";
}
else{
$protocol = 'http';
}
return $protocol . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
}
回答by SpYk3HH
Fun 'base_url' snippet!
有趣的“base_url”片段！
if (!function_exists('base_url')) {
function base_url($atRoot=FALSE, $atCore=FALSE, $parse=FALSE){
if (isset($_SERVER['HTTP_HOST'])) {
$http = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http';
$hostname = $_SERVER['HTTP_HOST'];
$dir = str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']);
$core = preg_split('@/@', str_replace($_SERVER['DOCUMENT_ROOT'], '', realpath(dirname(__FILE__))), NULL, PREG_SPLIT_NO_EMPTY);
$core = $core[0];
$tmplt = $atRoot ? ($atCore ? "%s://%s/%s/" : "%s://%s/") : ($atCore ? "%s://%s/%s/" : "%s://%s%s");
$end = $atRoot ? ($atCore ? $core : $hostname) : ($atCore ? $core : $dir);
$base_url = sprintf( $tmplt, $http, $hostname, $end );
}
else $base_url = 'http://localhost/';
if ($parse) {
$base_url = parse_url($base_url);
if (isset($base_url['path'])) if ($base_url['path'] == '/') $base_url['path'] = '';
}
return $base_url;
}
}
Use as simple as:
使用简单如：
// url like: http://stackoverflow.com/questions/2820723/how-to-get-base-url-with-php
echo base_url(); // will produce something like: http://stackoverflow.com/questions/2820723/
echo base_url(TRUE); // will produce something like: http://stackoverflow.com/
echo base_url(TRUE, TRUE); || echo base_url(NULL, TRUE); // will produce something like: http://stackoverflow.com/questions/
// and finally
echo base_url(NULL, NULL, TRUE);
// will produce something like:
// array(3) {
// ["scheme"]=>
// string(4) "http"
// ["host"]=>
// string(12) "stackoverflow.com"
// ["path"]=>
// string(35) "/questions/2820723/"
// }
回答by agravat.in
$modifyUrl = parse_url($url);
print_r($modifyUrl)
Its just simple to use
Output :
使用
Output很简单：
Array
(
[scheme] => http
[host] => aaa.bbb.com
[path] => /
)
回答by user3832931
$base_url="http://".$_SERVER['SERVER_NAME'].dirname($_SERVER["REQUEST_URI"].'?').'/';
Usage:
用法：
print "<script src='{$base_url}js/jquery.min.js'/>";
回答by Jeremy DeGroot
回答by rrsantos
Try the following code :
试试下面的代码：
$config['base_url'] = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == "on") ? "https" : "http");
$config['base_url'] .= "://".$_SERVER['HTTP_HOST'];
$config['base_url'] .= str_replace(basename($_SERVER['SCRIPT_NAME']),"",$_SERVER['SCRIPT_NAME']);
echo $config['base_url'];
回答by Jijesh Cherrai
The following code will reduce the problem to check the protocol. The $_SERVER['APP_URL'] will display the domain name with the protocol
以下代码将减少检查协议的问题。$_SERVER['APP_URL'] 将显示带有协议的域名
$_SERVER['APP_URL'] will return protocol://domain( eg:-http://localhost)
$_SERVER['APP_URL'] 将返回protocol://domain（例如：- http://localhost）
$_SERVER['REQUEST_URI'] for remaining parts of the url such as /directory/subdirectory/something/else
$_SERVER['REQUEST_URI'] 用于 url 的其余部分，例如/directory/subdirectory/something/else
$url = $_SERVER['APP_URL'].$_SERVER['REQUEST_URI'];
The output would be like this
输出将是这样的
回答by Hoàng V? Tgtt
I found this on http://webcheatsheet.com/php/get_current_page_url.php
我在http://webcheatsheet.com/php/get_current_page_url.php上找到了这个
Add the following code to a page:
将以下代码添加到页面：
<?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 $pageURL;
}
?>
You can now get the current page URL using the line:
您现在可以使用以下行获取当前页面 URL：
<?php
echo curPageURL();
?>
Sometimes it is needed to get the page name only. The following example shows how to do it:
有时只需要获取页面名称。以下示例显示了如何执行此操作：
<?php
function curPageName() {
return substr($_SERVER["SCRIPT_NAME"],strrpos($_SERVER["SCRIPT_NAME"],"/")+1);
}
echo "The current page name is ".curPageName();
?>
回答by Crazy SagaXxX
You can do it like this, but sorry my english is not good enough.
你可以这样做，但很抱歉我的英语不够好。
First, get home base url with this simple code..
首先，使用这个简单的代码获取家庭基地网址..
I've tested this code on my local server and public and the result is good.
我已经在本地服务器和公共服务器上测试了这段代码，结果很好。
<?php
function home_base_url(){
// first get http protocol if http or https
$base_url = (isset($_SERVER['HTTPS']) &&
$_SERVER['HTTPS']!='off') ? 'https://' : 'http://';
// get default website root directory
$tmpURL = dirname(__FILE__);
// when use dirname(__FILE__) will return value like this "C:\xampp\htdocs\my_website",
//convert value to http url use string replace,
// replace any backslashes to slash in this case use chr value "92"
$tmpURL = str_replace(chr(92),'/',$tmpURL);
// now replace any same string in $tmpURL value to null or ''
// and will return value like /localhost/my_website/ or just /my_website/
$tmpURL = str_replace($_SERVER['DOCUMENT_ROOT'],'',$tmpURL);
// delete any slash character in first and last of value
$tmpURL = ltrim($tmpURL,'/');
$tmpURL = rtrim($tmpURL, '/');
// check again if we find any slash string in value then we can assume its local machine
if (strpos($tmpURL,'/')){
// explode that value and take only first value
$tmpURL = explode('/',$tmpURL);
$tmpURL = $tmpURL[0];
}
// now last steps
// assign protocol in first value
if ($tmpURL !== $_SERVER['HTTP_HOST'])
// if protocol its http then like this
$base_url .= $_SERVER['HTTP_HOST'].'/'.$tmpURL.'/';
else
// else if protocol is https
$base_url .= $tmpURL.'/';
// give return value
return $base_url;
}
?>
// and test it
echo home_base_url();
output will like this :
输出将是这样的：
local machine : http://localhost/my_website/ or https://myhost/my_website
public : http://www.my_website.com/ or https://www.my_website.com/
use home_base_urlfunction at index.phpof your website and define it
使用您网站的home_base_url功能index.php并定义它
and then you can use this function to load scripts, css and content via url like
然后您可以使用此功能通过 url 加载脚本、css 和内容，例如
<?php
echo '<script type="text/javascript" src="'.home_base_url().'js/script.js"></script>'."\n";
?>
will create output like this :
将创建这样的输出：
<script type="text/javascript" src="http://www.my_website.com/js/script.js"></script>
and if this script works fine,,!
如果这个脚本工作正常，，！
