Page Header With Condition

<?php
/**
 *  Page Banner Template.
 */
global $post;
$page_header_hide_option = '';
if( is_front_page() ) :
$page_header_hide_option = true;
else :
  if(is_404()){
   $page_header_hide_option = '';
   $header_small_title   = '';
   $header_img      = get_template_directory_uri().'/assets/images/banner.jpg';
  }
  elseif (is_home()){
   $page_header_hide_option = true; 
  }
  else{
     if (function_exists('get_field')) {
       $page_header_hide_option = get_field('header_on_off');
       $header_small_title   = get_field( 'page_title' ); 
       $header_img      = get_field( 'header_background' );
    }
  }
  if(empty($header_img)) {
     $header_img      = get_template_directory_uri().'/asset/img/page-header.jpg';
    }
endif;

if( $page_header_hide_option == true): ?>
<section id="page-banner" class="loanplus-page-header" style="background-image: url('<?php echo esc_url($header_img);?>');"> 
    <div class="container">
      <div class="row">
      <div class="col-md-12 text-center">
        <?php 
          global $post;
          if( is_home() ){
           echo '<h2>'.apply_filters( 'the_title', get_the_title( get_option( 'page_for_posts' ) ) ).'</h2>'; 
          }elseif( is_singular() || is_page() ) { 
            if(!empty($header_small_title))
            {
             echo '<h2>'.$header_small_title.'</h2>';
            }else{
             the_title( '<h2>', '</h2>' );
            }
          }elseif( is_search() ) { 
           echo '<h2>'.esc_html__('Search','loanplus').': '.get_search_query().'</h2>'; 
          }
          else if ( is_404() ) {
           // add search form so that users can search other posts
           echo '<h2>'.esc_html__('404 Error','loanplus').'</h2>';
          }    
          else if( is_archive() ) {
           the_archive_title( '<h2>', '</h2>' );
          }else { 
             the_title( '<h2>', '</h2>' );
          }
        if(function_exists('bcn_display')){
          ?>
          <div class="breadcrumb-block">
            <ol class="breadcrumb">
              <li><?php bcn_display(); ?></li>
            </ol>
          </div>        
        <?php } ?>
      </div>
      </div>
    </div>
</section>
<?php endif;