how to extract a variable part of link ?

how can i extract "value=" and its value which is 123456

from this link
http://www.example.com/test?a=dsfgksdjfgdf&value=123456

or this link
http://www.example.com/test?a=dsfgksdjfgdf&value=123456&b=jhdfiudsf

 

This should solve your problem:

Here is the function I'm using:
http://php.net/manual/en/function.parse-url.php

So if we apply this to your source provided:

<?php
/*
URL PARSE EXAMPLE
Author: Joel Larson (Coded Caffeine)
Author URI: http://thejoellarson.com/

Enjoy!
*/

#Here is the second url
$url = 'http://www.example.com/test?a=dsfgksdjfgdf&value=123456&b=jhdfiudsf';

#Extract the query segments from the url
$uri_query = parse_url($url, PHP_URL_QUERY);

#Prints out the result:
print_r($uri_query); // a=dsfgksdjfgdf&value=123456&b=jhdfiudsf

#Parse the query
parse_str($uri_query, $segment);

#Prints out the result:
print_r($segment); //Array ( [a] => dsfgksdjfgdf [value] => 123456 [b] => jhdfiudsf )

#Now, you can access these variables via the array 'segments'. It displays:
/*
a: dsfgksdjfgdf
value: 123456
b: jhdfiudsf
*/
echo '<br /> a: ', $segment['a'], '<br /> value: ', $segment['value'], '<br /> b: ',$segment['b'];

PHP:

I also have this:

function parse_uri_vars($url)
{
	$uri_query = parse_url($url, PHP_URL_QUERY);
	parse_str($uri_query, $segment);
	return $segment;
}

$url = "http://www.example.com/test?a=dsfgksdjfgdf&value=123456&b=jhdfiudsf";
$parts = parse_uri_vars($url);
echo $parts['value']; //Echos 123456

PHP:

 

$value = $_GET['value'];

PHP:

 

Whoops! I was over-thinking it.. haha.

 

Nope, depends really if the URL is in a variable or he's actually on the page. I thought of it from your point of view also.