Custome Post Type | Wordpress Hook register_post_type | save_post | Wordpress | update_post_meta | add_meta_boxes

 Welcome to my blog, Today we are learning Custome Post Type, Wordpress Hook register_post_type, save_post, update_post_meta Wordpress , get_post_meta, add_meta_boxes

First go to your theme folder and find functions.php and add below code then it will add custom post type

<?php
//past this code in functions.php file
// custom post type for student
function custom_students_post(){
	$labels = array(
		'name' => _x('Students','Students post type','mywp'),
		'singular_name'=> _x('Student','mywp'),
	);
	$args = array(
		'labels' => $labels, // pass here all field label that will display in our post
		'description' => __('This is Student content'),
		'supports' => array('title','editor','excerpt','author','thumbnail','revisions','custom-fields'),
		'taxonomies' => array('category'),
		'hierarchical' => false,
		'public' => true,
		'show_ui' => true,
		'show_in_menu' => true,
		'show_in_nav_menus' => true,
		'show_in_admin_bar' => true,
		'menu_position' => 5,
		'can_export' => true,
		'has_archive' => true,
		'exclude_from_search' => false,
		'publicly_queryable' => true,
		'capability_type' => 'post',
		'show_in_rest' => true,
	);
	//register post type
	register_post_type('students',$args);
}
add_action('init','custom_students_post',0);
//add email meta box 
function students_email_metabox(){
	add_meta_box(
		'emailmetabox456', //this shoud be unique name
		'Email Id',
		'students_email_meta_show',//callback function this for html view here - > students_email_meta_show
		 array('students'), //add here custom post type
		'normal',
		'default',
	);
}
add_action('add_meta_boxes','students_email_metabox');
//callback function
function students_email_meta_show($post){
	wp_nonce_field(basename(__FILE__), "emailmetaboxnonce");
	?>
			<label for="email">Email</label>
            <input name="email" type="email" value="<?php echo get_post_meta($post->ID, "email", true); ?>">
	<?php
}
//save email meta box value
function save_students_email_metabox($post_id){
	//this will blank when insert new value
	$email_metabox_val = "";
	if(isset($_POST["email"]))
    {
        $email_metabox_val = $_POST["email"];
    }   
    update_post_meta($post_id, "email", $email_metabox_val);
}
add_action('save_post','save_students_email_metabox');

?>

Now go to dashboard and see in left menu you will see "students" section in left side 

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