Takes the results of a search query and runs a bunch of filters on it

search-filtering.php

<?php

function tan_athlete_search_page(){

                if( isset($_GET['sport']) ) {
                    $sport = $_GET['sport'];
                    $sportquery = array( 'key' => 'sfn_tan_choose_sport', 'compare' => 'like', 'value' => $sport );
                } else {
                    $sportquery = '';
                }

                if( !empty($_GET['state']) ) {
                    $state = $_GET['state'];} else {  }

                if( !empty($_GET['grad']) ) {
                    $grad = $_GET['grad'];} else {  }

                if( isset($_GET['fbposition']) ) {
                    $fbposition = $_GET['fbposition'];
                    $positionquery = array( 'key' => 'sfn_tan_football_position', 'compare' => 'like', 'value' => $fbposition );
                } else { $positionquery = ''; }

                if( isset($_GET['post_type']) ){
                    $cpt = $_GET['post_type'];
                    $cptvalue = array( 'athlete_profile', 'academic_profile');
                } else {
                    $cptvalue = array( 'post', 'page' );
                }

                $searchResults = new WP_Query( array(
                    'post_type'         => $cptvalue,
                    'meta_query'        => array(
                        $sportquery, $positionquery,
                    ),
                ));

            ?>

            <?php if ( $searchResults->have_posts() ) :
                $posts = $searchResults->posts;

//                sfn_print_r( $posts );

                // passing all results in to an array of authors
                $authorids = array();
                foreach( $posts as $post ){
                    $authorids[] = $post->post_author;
                }

                // removing duplicate author ids from the array
                $authorids = array_unique( $authorids );

//                sfn_print_r( $authorids );

                // checks state against author
                if( empty($state) ) {
                    // do nothing b/c we're not filtering by state
                } else {

                    $authorByState = array();
                    $removeAuthorByState = array();

                    foreach( $authorids as $authorid ){
                        $author = $authorid;
                        if( $state == get_the_author_meta( 'state', $author ) ) {
                            $authorbystate[] = $authorid;
                        } else {
                            $removeAuthorByState[] = $authorid;
                        }
                    }
                    $authorids = $authorbystate;
//                sfn_print_r( $authorbystate );
                } // ends check for state

                // check for graduation year
                if( !empty($grad) ){
                    $authorGrad = array();
                    $authorNotGrad = array();
                    foreach( $authorids as $authorid ) {
                        $academicPosts = get_posts( 'post_type=academic_profile&author='.$authorid );
                        if( get_post_meta( $academicPosts['0']->ID, 'sfn_tan_hs_graduation_year', true ) == $grad ) {
                            $authorGrad[] = $authorid;
                        } else {
                            $authorNotGrad[] = $authorid;
                        }
                    }
                    $authorids = $authorGrad;
                }

                foreach( $authorids as $authorid ){
                    $author = $authorid;
                    show_athlete_profile_image( $author, 100, 100 );
                    show_athlete_profile_information( $author, 'publish' );
                    echo '<div class="clear"></div>';
                }
?>


                <!-- post content goes here -->

            <?php  else: ?>

                <h3>Oops!! Looks like something went wrong. Please get in touch with the site <a href="mailto:<?php echo get_bloginfo('admin_email'); ?>">administrator</a> and we'll get this sorted out</h3>

            <?php endif; ?>

    <?php wp_reset_query();

}
?>