PHP Pagination help

[sonoton345]

I am testing out an API which needs pagination and got a pagination script which partly does what I want. At the moment it's displaying just 10 results by default per page and worked it to display the number of pages e.g 150 results displays PREV 1 2 3 4 5 NEXT.

The problem is when I click on next or page 2 etc, it displays no result. Here is the code...need help please. Many thanks.

<?php
    include("class/class_api.php");
    include("class/class_api_doctor.php");

extract($_POST);
    extract($_GET);
    
    $doctorApi = new DoctorApi();
    $doctorApi->start_list = 1;
    $doctorApi->limit_list = 10;  //10 results per page max
    $doctorApi->first_name = $first_name;
    $doctorApi->last_name = $last_name;
    $doctorApi->state = $state;
    $doctorApi->region = $region;
    $doctorApi->specialty = $specialty;
    $doctorApi->insurance = $insurance;
    $doctorApi->zipcode = $zipcode;
    $doctorApi->radius = $radius;
    $doctorApi->gender = $gender; // M or F
    $doctorApi->language = $language; 
    
    $doctorsApi = $doctorApi->api_readContents($doctorApi->api_getContents());
$total_pages = $doctorApi->total;
$limit = $doctorApi->limit_list;
// How many adjacent pages should be shown on each side?
	$adjacents = 3;


/* Setup page vars for display. */
if ($page == 0) $page = 1;					//if no page var is given, default to 1.
$prev = $page - 1;							//previous page is page - 1
$next = $page + 1;							//next page is page + 1
$lastpage = ceil($total_pages/$limit);		//lastpage is = total pages / items per page, rounded up.
$lpm1 = $lastpage - 1;						//last page minus 1

if($doctorApi && $doctorApi->total > 0) echo "<br>We found ".$doctorApi->total." Doctor for your Search <br>";
    if($doctorsApi) {
        foreach($doctorsApi as $doctor) {
            echo "<div class=\"Doctor\">";
            echo "<a href=\"".$doctor->profilelinkurl."\">";
            echo "<span class=\"name\">".$doctor->prefix.$doctor->first_name.$doctor->last_name.$doctor->credential."</span>";
            echo "<span class=\"specialty\">".$doctor->speciality."</span>";
            echo "<span class=\"address\">".$doctor->streetaddress."</span>";
            echo "<span class=\"address\">".$doctor->city.", ".$doctor->state." ".substr($doctor->zipcode,0,5)."</span>";
            echo "</a>";
            echo "</div>";
        }
    }

/* 
	Now we apply our rules and draw the pagination object. 
	We're actually saving the code to a variable in case we want to draw it more than once.
*/
$pagination = "";
if($lastpage > 1)
{	
	$pagination .= "<div class=\"pagination\">";
	//previous button
	if ($page > 1) 
		$pagination.= "<a href=\"search_results2.php?page=$prev\">« previous</a>";
	else
		$pagination.= "<span class=\"disabled\">« previous</span>";	

	//pages	
	if ($lastpage < 7 + ($adjacents * 2))	//not enough pages to bother breaking it up
	{	
		for ($counter = 1; $counter <= $lastpage; $counter++)
		{
			if ($counter == $page)
				$pagination.= "<span class=\"current\">$counter</span>";
			else
				$pagination.= "<a href=\"search_results2.php?page=$counter\">$counter</a>";					
		}
	}
	elseif($lastpage > 5 + ($adjacents * 2))	//enough pages to hide some
	{
		//close to beginning; only hide later pages
		if($page < 1 + ($adjacents * 2))		
		{
			for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
			{
				if ($counter == $page)
					$pagination.= "<span class=\"current\">$counter</span>";
				else
					$pagination.= "<a href=\"search_results2.php?page=$counter\">$counter</a>";					
			}
			$pagination.= "...";
			$pagination.= "<a href=\"search_results2.php?page=$lpm1\">$lpm1</a>";
			$pagination.= "<a href=\"search_results2.php?page=$lastpage\">$lastpage</a>";		
		}
		//in middle; hide some front and some back
		elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
		{
			$pagination.= "<a href=\"search_results2.php?page=1\">1</a>";
			$pagination.= "<a href=\"search_results2.php?page=2\">2</a>";
			$pagination.= "...";
			for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
			{
				if ($counter == $page)
					$pagination.= "<span class=\"current\">$counter</span>";
				else
					$pagination.= "<a href=\"search_results2.php?page=$counter\">$counter</a>";					
			}
			$pagination.= "...";
			$pagination.= "<a href=\"search_results2.php?page=$lpm1\">$lpm1</a>";
			$pagination.= "<a href=\"search_results2.php?page=$lastpage\">$lastpage</a>";		
		}
		//close to end; only hide early pages
		else
		{
			$pagination.= "<a href=\"search_results2.php?page=1\">1</a>";
			$pagination.= "<a href=\"search_results2.php?page=2\">2</a>";
			$pagination.= "...";
			for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
			{
				if ($counter == $page)
					$pagination.= "<span class=\"current\">$counter</span>";
				else
					$pagination.= "<a href=\"search_results2.php?page=$counter\">$counter</a>";					
			}
		}
	}

	//next button
	if ($page < $counter - 1) 
		$pagination.= "<a href=\"search_results2.php?page=$next\">next »</a>";
	else
		$pagination.= "<span class=\"disabled\">next »</span>";
	$pagination.= "</div>\n";		
}


    
echo "<br clear='both'><div>" .$pagination."</div>";
?>