Adding custom fields to Wordpress User Profile

functions.php

<?php

add_action( 'show_user_profile', 'extra_user_profile_fields' );
add_action( 'edit_user_profile', 'extra_user_profile_fields' );

function extra_user_profile_fields( $user ) { ?>
    <h3><?php _e("LEGACY IMPORTED USER DATA", "blank"); ?></h3>

    <table class="form-table">
    <tr>
        <th><label for="address"><?php _e("Legacy Deposit Date"); ?></label></th>
        <td>
            <input type="text" name="_legacy_deposit_date" id="_legacy_deposit_date" value="<?php echo esc_attr( get_the_author_meta( '_legacy_deposit_date', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Deposit Date"); ?></span>
        </td>
    </tr>
    <tr>
        <th><label for="city"><?php _e("Legacy Phone"); ?></label></th>
        <td>
            <input type="text" name="_legacy_phone" id="_legacy_phone" value="<?php echo esc_attr( get_the_author_meta( '_legacy_phone', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Legacy Phone"); ?></span>
        </td>
    </tr>
    <tr>
    <th><label for="postalcode"><?php _e("Legacy Subscriber ID"); ?></label></th>
        <td>
            <input type="text" name="_legacy_subscriber_id" id="_legacy_subscriber_id" value="<?php echo esc_attr( get_the_author_meta( '_legacy_subscriber_id', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Subscriber ID."); ?></span>
        </td>
    </tr>
    </table>
<?php }

	add_action( 'personal_options_update', 'save_extra_user_profile_fields' );
	add_action( 'edit_user_profile_update', 'save_extra_user_profile_fields' );

	function save_extra_user_profile_fields( $user_id ) {
		if ( !current_user_can( 'edit_user', $user_id ) ) {
			return false;
		}
		update_user_meta( $user_id, '_legacy_deposit_date', $_POST['_legacy_deposit_date'] );
		update_user_meta( $user_id, '_legacy_phone', $_POST['_legacy_phone'] );
		update_user_meta( $user_id, '_legacy_subscriber_id', $_POST['_legacy_subscriber_id'] );
	}