Add custom "Enter title here" text in WordPress

wordpress-custom-post-title-placeholder-text

// Change Placeholder text for Post/Page/CPT Title
add_filter( 'enter_title_here', 'change_title_placeholder' );
function change_title_placeholder( $title )
{
    $screen = get_current_screen();

    if ( 'POSTTYPE' == $screen->post_type ){
        $title = 'Some custom text';
    }

    return $title;
}