1
2
3
4
5
6
7
8
9
10
11
12
13
14

$ref = 'url.php?t=4&p=5&sid=ddf175fd02216cbe9fab9a4b528d7185&hilite=2c23tra#link';
$params = array('sid','t','p','hilite');

function cleanQueryString($ref, $params = NULL){
	$newparams = array();
	preg_match_all('|([^?&#=]+)=([^?&#=]+)(#{0,}[^?&#=]*)|', $ref, $out, PREG_SET_ORDER);
	
	foreach($out as $elem)
		if(!in_array($elem[1], $params))
			$newparams[] = "{$elem[1]}={$elem[2]}";  
	return implode('&',$newparams) . $out[count($out)-1][3];	
}

echo cleanQueryString($ref, $params);

1
2
3
4
5
6
7
8
9

<?
$params = array('SID','t','p','hilite');
$ref = 'url.php?t=4&p=5&sid=ddf175fd02216cbe9fab9a4b528d7185&hilite=2c23tra#link';

$urlParams = parse_str(parseurl($ref, PHP_URL_QUERY););

$survivingParams = array_diff_key($urlsParams, array_fill_keys($params, 0));

?>

1
2
3
4
5
6
7
8
9
10

<?php

$url = 'http://www.example.com/url.php?t=4&p=5&sid=ddf175fd02216cbe9fab9a4b528d7185&hilite=2c23tra#link';
$remove = array('sid','t');

$parsed = parse_url($url);
parse_str($parsed['query'], $params);

$parsed['params'] = array_diff_key($params, array_fill_keys($remove, 0));
print_r($parsed);

1
2
3
4
5
6
7
8
9
10
11
12
13

<?php
require_once 'Net/URL.php';

$text = 'http://www.example.com/url.php?t=4&p=5&sid=ddf175fd02216cbe9fab9a4b528d7185&hilite=2c23tra#link';

$url = new Net_URL($text);

print_r($url->querystring);
unset($url->querystring["t"]);

print_r($url);

print $url->getURL();