Get Request URI PHP - php

Question

I am struck in getting the URI in my wordpress application and lack of PHP knowledge is making my progress slow.
I have this URL
http://abc.com/my-blog/abc/cde
i need to create a URL something like
http://abc.com/my-blog/added-value/abc/cde
where http://abc.com/my-blog is the URL of my wordpress blog which i can easily get using following method
home_url()
i can use PHP $_SERVER["REQUEST_URI"] to get request URI which will come up as
/my-blog/abc/cde
and than i have no direct way to add value as per my requirement
is there any way to achieve this easily in PHP or Wordpress where i can get following information
Home URL
Rest part of the URL
so that in end i can do following
Home-URL+ custom-value+Rest part of the URL
My point of Confusion
On my local set up $_SERVER["REQUEST_URI"] is giving me /my-blog/abc/cde, where /my-blog is installation directory of wordpress and i can easily skip first level.
On production server its not same as /my-blog will not be part of the URL.

Answer 1

Very briefly:
<?php
$url = "http://abc.com/my-blog/abc/cde";
$parts = parse_url($url);
$path = explode("/", $parts["path"]);
array_splice($path, 2, 0, array("added-part")); //This line does the magic!
echo $parts["scheme"] . "://" . $parts["host"] . implode("/",$path);

Answer 2

OK, so if $addition is the bit you want in the middle and $uri is what you obtain from $_SERVER["REQUEST_URI"] then this..
$addition = "MIDDLEBIT/";
$uri = "/my-blog/abc/cde";
$parts = explode("/",$uri);
$homeurl = $parts[1]."/";
for($i=2;$i<count($parts);$i++){
$resturl .= $parts[$i]."/";
}
echo $homeurl . $addition . $resturl;
Should print:
my-blog/MIDDLEBIT/abc/cde/

Answer 3

You might want to use explode or some other sting function. Some examples below:
$urlBits = explode($_SERVER["REQUEST_URI"]);
//blog address
$blogAddress = $urlBits[0];
//abc
$secondPartOfUri = $urlBits[1];
//cde
$thirdPartOfUri = $urlBits[2];
//all of uri except your blog address
$uri = str_replace("/my-blog/", "", $_SERVER["REQUEST_URI"]);

Answer 4

This is a reliable way to get current url in PHP .
public static function getCurrentUrl($withQuery = true)
{
$protocol = stripos($_SERVER['SERVER_PROTOCOL'], 'https') === false ? 'http' : 'https';
$uri = $protocol . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
return $withQuery ? $uri : str_replace('?' . $_SERVER['QUERY_STRING'], '', $uri);
}

Answer 5

You can store the home url in a variable, using wordpress, using get_home_url()
$home_url = get_home_url();
$custom_value = '/SOME_VALUE';
$uri = $_SERVER['REQUEST_URI'];
$new_url = $home_url . $custom_value . $uri;