";
if (!empty($_GET['page'])) {
if (preg_match('/\?page=/', $page_url)) {
//echo "cotains ?page= so reuse that
";
$page_url = preg_replace('/\?page=\d*/', "", $page_url) . '?page=';
}
if (preg_match('/&page=/', $page_url)) {
//echo "cotains &page= so reuse that
";
$page_url = preg_replace('/&page=\d*/', "", $page_url) . '&page=';
}
} else {
if (!preg_match('/(\?|&)/', $page_url)) {
//echo "No param, so use ?page
";
$page_url = $page_url . '?page=';
}
if (!preg_match('/(\?|&)page/', $page_url)) {
//echo "other param than _page, so use &page
";
$page_url = $page_url . '&page=';
}
}
?>