Co-paging using search filters

I am working on implementing a search method in codeigniter, which uses code-breaking functionality. This required a little research, since we enable filters, and the user can select a variable number of filters, resetting the uri_segment count. I have a working solution below (only the published code that I felt was relative to understanding the process, not to be confused. If I missed something, let me know) that will get someone to start if they run into the same question, but you want to ask a few questions:

QUESTIONS:

• Is there a better, more efficient way to paginate search results?

• Is there anything that could be done to improve this method?

• How to display the current uri in the user's browser after the first message? The way the pagination library works, it does not display "first_url" until it is clicked through the generated links. I gave up the idea of ​​redirecting, but wanted to get feedback before going along this route.

VIEW

<!-- SEARCH FILTERS -->
<form action="/account/classified/browse" method="post" id="searchForm">

<p>Search
<br/>
<input type="text" name="phrase" id="searchString" value="<?php echo $selectedPhrase; ?>"/></p>

<p>Type<br/>
<?php echo form_dropdown('type', $types, $selectedType); ?>
</p>

<p>County<br/>
<?php echo form_dropdown('location', $locations, $selectedLocation); ?>
</p>

<p>Market<br/>
<?php echo form_dropdown('market', $markets, $selectedMarket); ?>
</p>

<p>
    <input type="submit" id="searchClassifiedButton" name="" value="Search"/>

</p>

</form>
<table>

<?

/*
    Results returned
*/
if (count($classifieds) > 0) {
    foreach ($classifieds as $classified) {
        echo '<tr>';

        //rows returned from query using search filters

        echo '</tr>';
    }
} else {
    echo 'There are no classifieds posted at this time';
}
?>

</table>

CONTROLLER:

<?
public function browse() {
    $this -> load -> helper("url");
    $this -> load -> library("pagination");
    $this -> load -> model('classified_model');
    $post = $this -> input -> post();

    /*
        Here we determine if the post array contains values. If it does, then we know that the
        user has clicked the search button and wishs to view results by different filters.

        If the post array is empty, but the uri segment contains values, this would mean that we
        are viewing listings narrowed by the search filters. 

        If the post array is empty as well as the uri segment, then we are viewing all results
        with no filters applied.
    */
    if ($post) {
        foreach ($post as $key => $val) {
            if ($val != '') {
                $filters[$key] = $val;
            }
        }
    } elseif ($this -> uri -> uri_to_assoc(4)) {
        $filters = $this -> uri -> uri_to_assoc(4);
    } else {
        $filters = array();
    }

    /*
        Here we create the config array for the pagination.

        We assign 'first_url' so that the first generated paginated link will contain the uri filter

        When filters array is not empty we assign 'suffix' so that the uri segment can be appended to the link AFTER the page offest
    */
    $pageConfig = array();
    $pageConfig['first_url'] = !empty($filters) ? '/account/classified/browse/0/' . $this -> uri -> assoc_to_uri($filters) : '/account/classified/browse/0';
    $pageConfig["suffix"] = !empty($filters) ? '/' . $this -> uri -> assoc_to_uri($filters) : '';
    $pageConfig["base_url"] = "/account/classified/browse/";
    $pageConfig["per_page"] = 15;
    $pageConfig["uri_segment"] = 3;
    $pageConfig["total_rows"] = $this -> classified_model -> approved_classifieds_count($filters);


    $this -> pagination -> initialize($pageConfig);


    $page = ($this -> uri -> segment(3)) ? $this -> uri -> segment(3) : 0;


    $data['classifieds'] = $this -> classified_model -> approved_classifieds($filters, $pageConfig["per_page"], $page);
    $data['links'] = $this -> pagination -> create_links();


    //PHRASE
    $data['selectedPhrase'] = (isset($filters['phrase'])) ? $filters['phrase'] : '';

    //TYPES
    $returnTypes = array('' => '-- View All --');
    foreach($this->classified_model->classified_search_types() as $type){
        $returnTypes[$type->id] = $type->name;
    }
    $data['types'] = $returnTypes;
    $data['selectedType'] = (isset($filters['type'])) ? $filters['type'] : '';

    //MARKETS
    $returnMarkets = array('' => '-- View All --');
    foreach($this->classified_model->market_types() as $market){
        $returnMarkets[$market->id] = $market->name;
    }
    $data['markets'] = $returnMarkets;
    $data['selectedMarket'] = (isset($filters['market'])) ? $filters['market'] : '';

    //COUNTIES
    $returnLocations = array('' => '-- View All --');
    foreach($this->classified_model->locations() as $key => $val){
        $returnLocations[$key] = $val;
    }
    $data['locations'] = $returnLocations;
    $data['selectedLocation'] = (isset($filters['location'])) ? $filters['location'] : '';


    //using phil sturgeon template library
    $this -> template -> build('browse_classified', $data);


}

MODEL:

public function classified_search_types(){
    $q = $this->db->query("SELECT * FROM classified_types");
    return $q->result();
}

public function market_types(){
    $query = $this -> db -> get('market_types');
    return $query -> result();
}

public function locations(){
    $query = $this -> db -> get('locations');
    return $query -> result();
}

public function approved_classifieds_count($filters){
    $result = $this->search($filters);
    return $result->num_rows();
}

public function approved_classifieds($filters, $limit, $start) {
    $result = $this->search($filters, $limit, $start);
    return $result->result();
}

function search($filters, $limit='', $start=''){
    $this->load->helper('security');

    /*
        Obtain values from filters array, set to '' if value not in array
    */
    $phrase = xss_clean((isset($filters['phrase'])) ? $filters['phrase'] : '');
    $type = xss_clean((isset($filters['type'])) ? $filters['type'] : '');
    $market = xss_clean((isset($filters['market'])) ? $filters['market'] : '');
    $location = xss_clean((isset($filters['location'])) ? $filters['location'] : '');


    /*
        QUERY LOGIC
    */


    $q = $this->db->query($query);


    return $q;

}