<?php
 
function getUrls($data)
{
    $regex = '@"(https?://www\\.bierdopje\\.com[^"]*+(?<!/profile))"@';
    return preg_match_all($regex, $data, $matches) ?
        array_unique($matches[1]) : array();
}
 
$data = <<< 'EOD'
{"responseData": {"results":[{"GsearchResultClass":"GwebSearch","unescapedUrl":"http://w...content-available-to-author-only...e.com/users/Stevo","url":"http://w...content-available-to-author-only...e.com/users/Stevo","visibleUrl":"www.bierdopje.com","cacheUrl":"http://www.google.com/search?q\u003dcache:mgC8DgEFGf4J:www.bierdopje.com","title":"Bierdopje.com | Profiel van \u003cb\u003eStevo\u003c/b\u003e","titleNoFormatting":"Bierdopje.com | Profiel van Stevo","content":"Bierdopje.com | Profiel van Stevo. \u003cb\u003e...\u003c/b\u003e \u003cb\u003eGebruikersprofiel van Stevo\u003c/b\u003e. Gebruiker.   Gebruikersnaam, Stevo. Gebruikers- \u003cb\u003e...\u003c/b\u003e Profiel. Stevo is sinds maandag 31 maart   2008 lid. Op 20 mei 2013 11:46:02 was Stevo voor het laatst actief. Statistieken \u003cb\u003e...\u003c/b\u003e"},{"GsearchResultClass":"GwebSearch","unescapedUrl":"http://w...content-available-to-author-only...e.com/users/stevo/profile","url":"http://w...content-available-to-author-only...e.com/users/stevo/profile","visibleUrl":"www.bierdopje.com","cacheUrl":"http://www.google.com/search?q\u003dcache:TIxix3RYGkMJ:www.bierdopje.com","title":"Bierdopje.com | Profiel van \u003cb\u003eStevo\u003c/b\u003e","titleNoFormatting":"Bierdopje.com | Profiel van Stevo","content":"Bierdopje.com | Profiel van Stevo. \u003cb\u003e...\u003c/b\u003e \u003cb\u003eGebruikersprofiel van Stevo\u003c/b\u003e. Gebruiker.   Gebruikersnaam, Stevo. Gebruikers- \u003cb\u003e...\u003c/b\u003e Profiel. Stevo is sinds maandag 31 maart   2008 lid. Op 29 april 2013 09:09:03 was Stevo voor het laatst actief. Statistieken \u003cb\u003e...\u003c/b\u003e"}],"cursor":{"resultCount":"2","pages":[{"start":"0","label":1}],"estimatedResultCount":"2","currentPageIndex":0,"moreResultsUrl":"http://www.google.com/search?oe\u003dutf8\u0026ie\u003dutf8\u0026source\u003duds\u0026start\u003d0\u0026hl\u003dja\u0026q\u003dsite:www.bierdopje.com/users/+%22Gebruikersprofiel+van+%22+Stevo","searchResultTime":"0.04"}}, "responseDetails": null, "responseStatus": 200}
EOD;
 
$urls = getUrls($data);
var_dump($urls);

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