Kfir THE KING

function retUrls($str){
    $motek = array();
    $c = substr_count($str,'http://');
    while(strpos($str,'http://') !== false){
        $m = strpos($str,'http://');
        $sub = mb_substr($str,$m);
        $n1 = findSpace($sub);
        $n = getA($n1);
        $str = str_replace($n1,$n,$str);
    }
    $str = str_replace('http::','http:',$str);
    return $str;
}
function findSpace($s){
$p = explode(' ',$s);
return $p[0];
}
function getA($a){
    $a = str_replace('http:','http::',$a);
    return '<a href="'.$a.'">'.$a.'</a>';
}
echo retUrls("motek motek http://bobo.com boboi http://mongol.com sdfsdfa");