Add Metaboxes and Metafields to your wordpress posts

Add Metaboxes and metafields to your wordpress posts

 add_action('add_meta_boxes','mypost_add_custom_box');  
 add_action('save_post','myplugin_save_postdata');  
 function mypost_add_custom_box() {  
   add_meta_box(  
     'myplugin_sectionid',  
     __('Post Type Selection','myplugin_textdomain'),  
     'myplugin_inner_custom_box',  
     'post'  
   );  
 }  
 function myplugin_inner_custom_box( $post ) {  
  wp_nonce_field( plugin_basename( __FILE__ ), 'myplugin_noncename' );  
  // The actual fields for data entry  
  $scheckval=esc_attr(get_post_meta($post->ID,'slider_post',true));  
  $pcheckval=esc_attr(get_post_meta($post->ID,'popular_post',true));  
  if($scheckval=='on')  
  echo '<input type="checkbox" id="myplugin_slider_field" name="myplugin_slider_field" checked="checked"/>';  
  else  
  echo '<input type="checkbox" id="myplugin_slider_field" name="myplugin_slider_field"/>';  
  echo '<label for="myplugin_slider_field">';  
     _e("Slider Post", 'myplugin_sdomain' );  
  echo '</label> ';  
  if($pcheckval=='on')  
  echo '<input type="checkbox" id="myplugin_popular_field" name="myplugin_popular_field" checked="checked"/>';  
  else  
  echo '<input type="checkbox" id="myplugin_popular_field" name="myplugin_popular_field"/>';  
  echo '<label for="myplugin_popular_field">';  
     _e("Popular Post", 'myplugin_pdomain' );  
  echo '</label>';  
 }  
 /* When the post is saved, saves our custom data */  
 function myplugin_save_postdata( $post_id ) {  
  // verify if this is an auto save routine.  
  // If it is our form has not been submitted, so we dont want to do anything  
  if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )  
    return;  
  // verify this came from the our screen and with proper authorization,  
  // because save_post can be triggered at other times  
  if ( !wp_verify_nonce( $_POST['myplugin_noncename'], plugin_basename( __FILE__ ) ) )  
    return;  
  // Check permissions  
  if ( 'page' == $_POST['post_type'] )  
  {  
   if ( !current_user_can( 'edit_page', $post_id ) )  
     return;  
  }  
  else  
  {  
   if ( !current_user_can( 'edit_post', $post_id ) )  
     return;  
  }  
  // OK, we're authenticated: we need to find and save the data  
  if($_POST['myplugin_slider_field']=='on')  
  $smydata=$_POST['myplugin_slider_field'];  
  else  
  $smydata='off';  
  if($_POST['myplugin_popular_field']=='on')  
  $pmydata=$_POST['myplugin_popular_field'];  
  else  
  $pmydata='off';  
  update_post_meta($post_id,'slider_post',$smydata);  
  update_post_meta($post_id,'popular_post',$pmydata);  
 }