Getting various URL formats of current page in PHP

JavaScript implementation:

 Top.location.hraddress of the top-level window 
 this.location.hraddress of the current window

PHP implementation:

 #Test website: http: / / localhost / sangsir / manito. PHP? Id = 1 
 / / get domain name or host address 
 echo$_ SERVER['HTTP_ Host ']; ා localhost 
 / / get web address 
 echo$_ SERVER['PHP_ Self ']; # / sangsir / manito. PHP 
 / / get the URL parameter 
 echo$_ SERVER["QUERY_ String "]; ා id = 1 
 / / get the complete URL 
 echo 'http: / /'$_ SERVER['HTTP_ HOST'].$_ SERVER['REQUEST_ Uri ']; / / the first echo' http: / / '$_ SERVER['HTTP_ HOST'].$_ SERVER['PHP_ SELF'].'?'.$_ SERVER['QUERY_ String ']; / / the second one is http: / / localhost / sangsir / manito. PHP? Id = 1 
 / / the full URL containing the port number 
 echo' http: / / '$_ SERVER['SERVER_ NAME'].':'.$_ SERVER["SERVER_ PORT"].$_ SERVER["REQUEST_ Uri "]; 
 http: / / localhost: 80 / sangsir / manito. PHP? Id = 1 
 / / take only the path 
 $url ='http: / / '$_ SERVER['SERVER_ NAME'].$_ SERVER["REQUEST_ URI"];
echo dirname($url);
#http://localhost/sangsir

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Get various URL formats of the current page in PHP