I’ve the next code registering metabox with kind enter used to enter reside venture hyperlink

    operate portfolio_meta_box() {

  add_meta_box ('project-meta', 'Add Undertaking Hyperlink', 'portfolio_meta_options',  'portfolio', 'aspect', 'low');

  }

  add_action("admin_init", "portfolio_meta_box");

  operate portfolio_meta_options(){

        international $submit;

        if ( outlined('DOING_AUTOSAVE') && DOING_AUTOSAVE ) return $post_id;
        $customized = get_post_custom($post->ID);
        $hyperlink = $customized ['project-link'][0];
  ?>

  <enter title="project-link" worth="<?php echo $hyperlink; ?>" />
  <?php
   }


//save customized meta bins when the submit is saved


operate save_project_link (){

  international $submit;

  if(outlined('DOING_AUTOSAVE') && DOING_AUTOSAVE )  {
     return $post_id;
  }

  else  {

    update_post_meta ($post->ID, 'project-link', $_POST['project-link']);
  }
}

add_action ('save_post', 'save_project_link');

In my single-portfolio.php I’m utilizing this code to output a venture URL

<?php

get_header(); ?>

<fundamental class="view"> 

   <?php $hyperlink= get_post_custom_values('project-link'); 
      if($hyperlink[0] != "") ://!= not equal empty string
    ?>                     
       <a href="<?=$hyperlink[0]?>" goal="_blank">view web site</a>

      <?php  else: ?>

      <em>reside hyperlink unavailable</em>

      <?php endif; ?>

      <?php     whereas ( have_posts() ) :the_post(); the_content(); endwhile;?>

</fundamental><!-- .site-main -->


<?php get_footer(); ?>

which provides me the next output (see left column on the screenshot) however I used to be questioning how can I alter the code to present me the output proven in proper column (its a clickable hyperlink which ought to seem below the primary venture screenshot solely)

My second query is I’ve observed in $hyperlink = $customized ['project-link'][0]; and

'<?php $hyperlink= get_post_custom_values('project-link'); 
      if($hyperlink[0] != "") ://!= not equal empty string
    ?>                     
       <a href="<?=$hyperlink[0]?>" goal="_blank">view web site</a>'

we use [‘project-link’][0]; and $hyperlink[0]. Is the primary one [‘project-link’][0];an listed array with zero index which makes it choose the first worth within the array? as to the second $hyperlink[0] why do we want zero index in that case?