如何在 PHP 中获取当前服务器路径、url 域、文件名或脚本名称

Question

在 PHP 中使用脚本时，我需要从服务器的角度和域 url 的角度知道其当前文件夹和路径是什么。

我还需要带或不带扩展名的文件名或脚本名称，以及带或不带任何参数传入的文件名或脚本名称。

例如，如果我调用以下内容：

https://example.com/somefolder/anotherfolder/test.php?hey=there

我想取回所有这些单独的部分：

test
test.php
test.php?hey=there
hey=there
https://example.com
/home/myserver/public_html
/somefolder/anotherfolder

Answer 1

因此，这是我的通用解决方案，它将分解所有内容，然后允许您根据需要将所有内容重新组合在一起。

请参阅下面的输出，将脚本放在以下位置（然后调用它）： https://example.com/somefolder/anotherfolder/test.php?hey =there

<?php
  // filename only including extension but no path
  $script_name_with_ext = basename(__FILE__);

  // filename only with no extension and no path
  $script_name_no_ext = basename(__FILE__, ".php"); 

  // filename only including extension and all arguments but no path
  $script_name_with_args = basename($_SERVER["REQUEST_URI"]); 

  // arguments only with no filename
  $args_no_script_name = str_replace ( $script_name_with_ext."?" , "", $script_name_with_args); 

  // path portion only with no domain and no server portions
  $path_only = pathinfo($_SERVER['PHP_SELF'], 1); 

  // domain url portion only with no path
  $domain_no_path = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://{$_SERVER['HTTP_HOST']}"; 

  // domain url including path
  $domain_with_path =  $domain_no_path.$path_only; 

  // domain url and path and filename with extension
  $full_domain = $domain_with_path."/".$script_name_with_ext; 

  // server including path
  $server_with_path = str_replace ("/".$script_name_with_ext , "", __FILE__); 

  // server only with no path
  $server_no_path = str_replace($path_only, "", $server_with_path); 

  // server and path and filename with extension
  $full_server = $server_with_path."/".$script_name_with_ext; 

  // output everything here
  echo $script_name_no_ext."<br>";
  echo $script_name_with_ext."<br>";
  echo $script_name_with_args."<br>";
  echo $args_no_script_name."<br><br>";
  echo $path_only."<br><br>";
  echo $server_no_path."<br>";
  echo $server_with_path."<br>";
  echo $full_server."<br>";
  echo $full_server."?".$args_no_script_name."<br><br>";
  echo $domain_no_path."<br>";
  echo $domain_with_path."<br>";
  echo $full_domain."<br>";
  echo $full_domain."?".$args_no_script_name."<br><br>";
?>

输出将如下所示：

test
test.php
test.php?hey=there
hey=there

/somefolder/anotherfolder

/home/myserver/public_html
/home/myserver/public_html/somefolder/anotherfolder
/home/myserver/public_html/somefolder/anotherfolder/test.php
/home/myserver/public_html/somefolder/anotherfolder/test.php?hey=there

https://example.com
https://example.com/somefolder/anotherfolder
https://example.com/somefolder/anotherfolder/test.php
https://example.com/somefolder/anotherfolder/test.php?hey=there