<?php
$url = "http://www.google.ru/?sclient=psy-ab&hl=ru&safe=off&source=hp&".
"q=string&pbx=1&oq=string&aq=f&aqi=g4&aql=&gs_sm=3&biw=1280&bih=892";
$arr=parse_url($url);
parse_str($arr["query"], $output);
print_r($output);
echo $arr["host"];Array
(
[sclient] => psy-ab
[hl] => ru
[safe] => off
[source] => hp
[q] => string
[pbx] => 1
[oq] => string
[aq] => f
[aqi] => g4
[aql] =>
[gs_sm] => 3
[biw] => 1280
[bih] => 892
)
www.google.ru