php - 如何从网址中删除问号提取特定单词

HTTP://localhost/website/?search=hello+world

This is the URL and I just want to extract hello world from it

Right now i am using this code:

if(isset($_GET['q'])) {
   $url = $_GET['q'];
   $x = rtrim($url,'/');
   $x = explode('/',$url);
   print_r($x);
   echo($url);
}

But this does not show anything after the question mark. Is there anything wrong with this code or the .htaccess file.

I have also included the .htaccess file with code:

RewriteEngine On
RewriteRule ^([a-zA-Z0-9-+/]+)$ index.php?q=$1
RewriteRule ^([a-zA-Z0-9-+/]+)/$ index.php?q=$1

Use php inbuilt function parse_url()

http://php.net/manual/en/function.parse-url.php

$url = 'http://username:password@hostname/path?arg=value#anchor';

print_r(parse_url($url));

results

Array
(
   [scheme] => http
   [host] => hostname
   [user] => username
   [pass] => password
   [path] => /path
   [query] => arg=value
   [fragment] => anchor
)

You can use parse_url and parse_str function:

$str = "first=value&arr[]=foo+bar&arr[]=baz"; 
parse_str($str); 
echo $first; // value 
echo $arr[0]; // foo bar 
echo $arr[1]; // baz 

I think parse_ur() is your friend!

$url = 'HTTP://localhost/website/?search=hello+world';
$parsed = parse_url($url);
echo $parsed['query'] ; // search=hello+world

Your htaccess rule is wrong..

It must be

RewriteEngine On
RewriteRule ^([a-zA-Z0-9-+/]+)$ index.php?search=$1
RewriteRule ^([a-zA-Z0-9-+/]+)/$ index.php?search=$1

and the code should be

if(isset($_GET['search'])) {
$url = $_GET['search'];
$x = rtrim($url,'/');
$x = explode('/',$url);
print_r($x);
echo($url);