从URL末尾删除字符

Question

Say I have a URL with something like this:
http://website.com/website/webpage/?message=newexpense

I have the following code to try and get the the URL before the question mark:

$post_url = $actual_link = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$link_before_question_mark = explode('?', $actual_link);
$add_income_url = $link_before_question_mark[0];

In this example I would get the following URL:
http://website.com/website/webpage/

I'd like to remove the webpage portion of this so the URL is:
http://website.com/website/

How can I do this?

Answer 1

You can do a similar trick using explode. Then pop the parts you don't need and implode the url back together. If you are sure that the part after '?' never contains a '/', you can replace your code with this one. If you're not sure, you should first remove the part after '/' and then run this code to remove the last part of the path.

<?php
$url = 'http://website.com/website/webpage/?message=newexpense';

$parts = explode('/', $url);

// Remove the last part from the array
$lastpart = array_pop($parts);

// If the last part is empty, or the last part starts with a '?'
// this means there was a '/' at the end of the url, so we 
// need to pop another part.
if ($lastpart == '' or substr($lastpart, 0, 1) == '?')
  array_pop($parts);

$url = implode('/', $parts);

var_dump($url);