wordpress : metabox

mb-login

<?php
/*
Plugin Name: Meta Box Example Plugin
Plugin URI: http://example.com/wordpress-plugins/my-plugin
Description: A plugin to create meta boxes in WordPress
Version: 1.0
Author: Brad Williams
Author URI: http://wrox.com
License: GPLv2
*/
add_action( 'add_meta_box', 'boj_mbe_create' );
function boj_mbe_create() {
//create a custom meta box
add_meta_box( 'boj-meta', 'My Custom Meta Box', 'boj_mbe_function',
'post', 'normal', 'high' );
}
function boj_mbe_function( $post ) {
	//retrieve the metadata values if they exist
	$boj_mbe_name = get_post_meta( $post-> ID, '_boj_mbe_name', true );
	$boj_mbe_costume = get_post_meta( $post-> ID, '_boj_mbe_costume', true );
	echo 'Please fill out the information below';
	?>
	<p> Name: <input type="text" name="boj_mbe_name" value="<?php echo esc_attr( $boj_mbe_name ); ?>" /> 
	</p> 
	<p> Costume:
	<select name="boj_mbe_costume"> 
		<option value="vampire" <?php selected( $boj_mbe_costume, 'vampire' ); ?>> 
			Vampire
		</option> 
		<option value="zombie" <?php selected( $boj_mbe_costume, 'zombie' ); ?>> 
			Zombie
		</option> 
	
		<option value="smurf" <?php selected( $boj_mbe_costume, 'smurf' ); ?>> 
			Smurf
		</option> 
	</select> 
	</p> 
	<?php
}
//hook to save the meta box data
add_action( 'save_post', 'boj_mbe_save_meta' );
function boj_mbe_save_meta( $post_id ) {
	//verify the metadata is set
	if ( isset( $_POST['boj_mbe_name'] ) ) {
		//save the metadata
		update_post_meta( $post_id, '_boj_mbe_name',
		strip_tags( $_POST['boj_mbe_name'] ) );
		update_post_meta( $post_id, '_boj_mbe_costume',
		strip_tags( $_POST['boj_mbe_costume'] ) );
	}
}
?>