php url explode | 易学教程

问题

I am wanting to grab my product from my url. For example:

http://www.website.com/product-category/iphone

I am wanting to grab the iphone and that is fine with my code but I have a dropdown to sort products and which clicked will change the url and add a query like:

http://www.website.com/product-category/iphone?orderby=popularity
http://www.website.com/product-category/iphone?orderby=new
http://www.website.com/product-category/iphone?orderby=price
http://www.website.com/product-category/iphone?orderby=price-desc

My current code is

$r = $_SERVER['REQUEST_URI']; 
$r = explode('/', $r);
$r = array_filter($r);
$r = array_merge($r, array()); 

$endofurl = $r[1];
echo $endofurl;

How is it possible to grab the iphone section all the time.

Cheers

回答1:

You can use PHP's parse_url() function to split the URL for you and then access the path parameter and get the end of it:

$r = parse_url($url);
$endofurl = substr($r['path'], strrpos($r['path'], '/'));

This will parse the URL and then take a "sub-string" of the URL starting from the last-found / in the path.

You can alternatively use explode('/') as you're currently doing on the path:

$path = explode($r['path']);
$endofurl = $path[count($path) - 1];

UPDATE (using strrchr(), pointed out by @x4rf41):
A shorter method of obtaining the end of the string, opposed to substr() + strrpos() is to use strrchr():

$endofurl = strrchr($r['path'], '/');

If you take advantage of parse_url()'s option parameters, you can also get just the path by using PHP_URL_PATH like $r = parse_url($url, PHP_URL_PATH);

Or, the shortest method:

$endofurl = strrchr(parse_url($url, PHP_URL_PATH), '/');

回答2:

If you want to retrieve the last element of the array, you can use the end function. The rest of your code seems to be working.

$endofurl = end($r);

You could also leverage parse_url and strrchr functions to make it more concise:

$endofurl = strrchr(parse_url($url, PHP_URL_PATH), '/');

回答3:

Just figured it out.This now works with

$r = $_SERVER['REQUEST_URI']; 
$r = explode('/', $r);
$r = array_filter($r);
$r = array_merge($r, array()); 
$r = preg_replace('/\?.*/', '', $r);

$endofurl = $r[1];
echo $endofurl;

来源：https://stackoverflow.com/questions/15118047/php-url-explode

标签

php

arrays

url

explode