put custom field without using custom fields - php

Question

I just need the extra fields on my post but without using advance custom fields.
Please what should i do the changes in my function.php
i have simple do the below code for custom post i need on extra field which name should be "company" what changes i required in below code.
please can anyone tell me ?
add_action( 'init', 'client' );
function client() {
register_post_type( 'client',
array(
'labels' => array(
'name' => __( 'Our Client' ),
'singular_name' => __( 'client' )
),
'public' => true,
'has_archive' => true,
'rewrite' => array('slug' => 'client'),
'supports' => array( 'title','thumbnail')
)
);
}

Answer 1

Try the following code:
add_action( 'init', 'client' );
function client() {
register_post_type( 'client',
array(
'labels' => array(
'name' => __( 'Our Client' ),
'singular_name' => __( 'client' )
),
'public' => true,
'has_archive' => true,
'rewrite' => array('slug' => 'client'),
'supports' => array( 'title','thumbnail'),
'register_meta_box_cb' => 'add_client_metaboxes',
)
);
}
//Code for meta box.
add_action( 'add_meta_boxes', 'add_client_metaboxes' );
function add_client_metaboxes() {
add_meta_box('company_description', 'Company', 'company_description', 'client');
}
function company_description() {
global $post;
// Noncename needed to verify where the data originated
echo '<input type="hidden" name="itemmeta_noncename" id="itemmeta_noncename" value="' .
wp_create_nonce( plugin_basename(__FILE__) ) . '" />';
// Get the location data if its already been entered
$comapny_detail = get_post_meta($post->ID, 'comapny_detail', true);
// Echo out the field
echo '<input type="text" name="comapny_detail" value="'.$comapny_detail.'">';
}
Edited:
function wpt_client() {
register_post_type( 'client',
array(
'labels' => array(
'name' => __( 'Clients' ),
'singular_name' => __( 'Client' ),
'add_new' => __( 'Add New Client' ),
'add_new_item' => __( 'Add New Client' ),
'edit_item' => __( 'Edit Client' ),
'new_item' => __( 'Add New Client' ),
'view_item' => __( 'View Client' ),
'search_items' => __( 'Search Client' ),
'not_found' => __( 'No cleint found' ),
'not_found_in_trash' => __( 'No client found in trash' )
),
'public' => true,
'supports' => array( 'title','editor','thumbnail'),
'capability_type' => 'post',
'rewrite' => array("slug" => "client"), // Permalinks format
'menu_position' => 20,
'register_meta_box_cb' => 'create_meta_boxes',
)
);
}
add_action( 'init', 'wpt_client' );
/* Custom meta boxes */
add_action( 'add_meta_boxes', 'create_meta_boxes' );
function create_meta_boxes() {
add_meta_box( 'my-meta-box-id', __('Company Name'), 'client_info', 'client', 'normal', 'low' );
}
// Create meta box: Company Name
function client_info( $post ) {
$values = get_post_custom( $post->ID );
wp_nonce_field( 'my_meta_box_nonce', 'meta_box_nonce' );
?>
<?php $text = get_post_meta($post->ID, 'client_info', true); ?>
<input type="text" name="client_info" id="client_info" style="width: 100%; margin: 6px 0;" value="<?php echo $text; ?>" />
<?php
}
// Save meta box: Company Name
add_action( 'save_post', 'save_client_info' );
function save_client_info( $post_id ) {
if( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
if( !isset( $_POST['meta_box_nonce'] ) || !wp_verify_nonce( $_POST['meta_box_nonce'], 'my_meta_box_nonce' ) ) return;
if( !current_user_can( 'edit_post' ) ) return;
$allowed = array(
'a' => array( // on allow a tags
'href' => array() // and those anchords can only have href attribute
)
);
if( isset( $_POST['client_info'] ) )
update_post_meta( $post_id, 'client_info', wp_kses( $_POST['client_info'], $allowed ) );
}