$redove = ($pageNum - 1) * $broinastranica; 

$search= $_GET['x'];

$search = explode (" ",$search ); 

$broi= count($search);

$sql = array();

for($i=0; $i<$broi; $i++) {
$sql[] = "sreshta LIKE '%$search[$i]%' ";
$sql[] = "darjava LIKE '%$search[$i]%' ";
$sql[] = "komentar LIKE '%$search[$i]%' ";
$sql[] = "redaktor LIKE '%$search[$i]%' ";
$sql[]="bdata LIKE '%$search[$i]%' ";
}

$fullsql= implode(' OR ',$sql);

$query = "SELECT * FROM prognozi WHERE $fullsql "." LIMIT $redove, $broinastranica ";