if ( isset( $s ) ) {
        $s = esc_attr( $s );
    }
 
    /**
     * Fires before a template file is loaded.
     *
     * @since 6.1.0
     *
     * @param string $_template_file The full path to the template file.
     * @param bool   $load_once      Whether to require_once or require.
     * @param array  $args           Additional arguments passed to the template.
     */
    do_action( 'wp_before_load_template', $_template_file, $load_once, $args );
 
    if ( $load_once ) {
        require_once $_template_file;
    } else {
        require $_template_file;
    }
 
    /**
     * Fires after a template file is loaded.
     *
     * @since 6.1.0
     *
     * @param string $_template_file The full path to the template file.
     * @param bool   $load_once      Whether to require_once or require.
     * @param array  $args           Additional arguments passed to the template.
     */
    do_action( 'wp_after_load_template', $_template_file, $load_once, $args );
}
 

 
    $located = '';
    foreach ( (array) $template_names as $template_name ) {
        if ( ! $template_name ) {
            continue;
        }
        if ( file_exists( $wp_stylesheet_path . '/' . $template_name ) ) {
            $located = $wp_stylesheet_path . '/' . $template_name;
            break;
        } elseif ( $is_child_theme && file_exists( $wp_template_path . '/' . $template_name ) ) {
            $located = $wp_template_path . '/' . $template_name;
            break;
        } elseif ( file_exists( ABSPATH . WPINC . '/theme-compat/' . $template_name ) ) {
            $located = ABSPATH . WPINC . '/theme-compat/' . $template_name;
            break;
        }
    }
 
    if ( $load && '' !== $located ) {
        load_template( $located, $load_once, $args );
    }
 
    return $located;
}
 
/**
 * Requires the template file with WordPress environment.
 *
 * The globals are set up for the template file to ensure that the WordPress
 * environment is available from within the function. The query variables are
 * also available.
 *
 * @since 1.5.0
 * @since 5.5.0 The `$args` parameter was added.
 *
 * @global array      $posts
 * @global WP_Post    $post          Global post object.
 * @global bool       $wp_did_header
 * @global WP_Query   $wp_query      WordPress Query object.
 * @global WP_Rewrite $wp_rewrite    WordPress rewrite component.

        $templates[] = "{$slug}-{$name}.php";
    }
 
    $templates[] = "{$slug}.php";
 
    /**
     * Fires before an attempt is made to locate and load a template part.
     *
     * @since 5.2.0
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string   $slug      The slug name for the generic template.
     * @param string   $name      The name of the specialized template or an empty
     *                            string if there is none.
     * @param string[] $templates Array of template files to search for, in order.
     * @param array    $args      Additional arguments passed to the template.
     */
    do_action( 'get_template_part', $slug, $name, $templates, $args );
 
    if ( ! locate_template( $templates, true, false, $args ) ) {
        return false;
    }
}
 
/**
 * Displays search form.
 *
 * Will first attempt to locate the searchform.php file in either the child or
 * the parent, then load it. If it doesn't exist, then the default search form
 * will be displayed. The default search form is HTML, which will be displayed.
 * There is a filter applied to the search form HTML in order to edit or replace
 * it. The filter is {@see 'get_search_form'}.
 *
 * This function is primarily used by themes which want to hardcode the search
 * form into the sidebar and also by the search widget in WordPress.
 *
 * There is also an action that is called whenever the function is run called,
 * {@see 'pre_get_search_form'}. This can be useful for outputting JavaScript that the
 * search relies on or various formatting that applies to the beginning of the
 * search. To give a few examples of what it can be used for.

<?php get_template_part('templates/page', 'header'); ?>
 
<?php if (!have_posts()) : ?>
    <div class="alert alert-warning">
        <?php _e('Sorry, no results were found.', 'roots'); ?>
    </div>
    <?php get_search_form(); ?>
<?php endif; ?>
 
<div class="row" style="margin-top:10px;">
    <?php $i = 1; ?>
    <?php query_posts($query_string . '&order=ASC&posts_per_page=50'); ?>
    <?php while (have_posts()) : the_post(); ?>
        <div class="col-lg-3 col-md-3 col-sm-6 col-xs-12">
            <article <?php post_class(); ?>>
                <header>
                    <?php if(has_post_thumbnail()) {
                        the_post_thumbnail('sponsor-afb', array( 'class' => 'img-responsive img-border'));
                    } else {
                        echo '<img src="' . get_bloginfo( 'stylesheet_directory' ) . '/assets/img/onbekend.jpg" alt="Geen foto" class="img-responsive img-border">';
                    }
                    ?>
                    <h3 class="entry-title" style="text-align:center;"><?php the_title(); ?></h3>
                </header>
            </article>
        </div>
        <?php
        if($i == 4) {
            echo '</div><hr><div class="row" style="margin-top:40px;">';
            $i = 0;
        }
        ?>
        <?php $i++; ?>
    <?php endwhile; ?>
</div>
 
<?php if ($wp_query->max_num_pages > 1) : ?>
    <nav class="post-nav">
        <ul class="pager">
            <li class="previous"><?php next_posts_link(__('&larr; Older posts', 'roots')); ?></li>

            }
 
            break;
        }
    }
 
    if ( ! $template ) {
        $template = get_index_template();
    }
 
    /**
     * Filters the path of the current template before including it.
     *
     * @since 3.0.0
     *
     * @param string $template The path of the template to include.
     */
    $template = apply_filters( 'template_include', $template );
    if ( $template ) {
        include $template;
    } elseif ( current_user_can( 'switch_themes' ) ) {
        $theme = wp_get_theme();
        if ( $theme->errors() ) {
            wp_die( $theme->errors() );
        }
    }
    return;
}
 

<?php
/**
 * Loads the WordPress environment and template.
 *
 * @package WordPress
 */
 
if ( ! isset( $wp_did_header ) ) {
 
    $wp_did_header = true;
 
    // Load the WordPress library.
    require_once __DIR__ . '/wp-load.php';
 
    // Set up the WordPress query.
    wp();
 
    // Load the theme template.
    require_once ABSPATH . WPINC . '/template-loader.php';
 
}
 

<?php
/**
 * Front to the WordPress application. This file doesn't do anything, but loads
 * wp-blog-header.php which does and tells WordPress to load the theme.
 *
 * @package WordPress
 */
 
/**
 * Tells WordPress to load the WordPress theme and output it.
 *
 * @var bool
 */
define( 'WP_USE_THEMES', true );
 
/** Loads the WordPress Environment and Template */
require __DIR__ . '/wp-blog-header.php';