Depends on what theme you are using because some include hooks which make the job easier. For themes which don’t include hooks like Twenty Eleven & Twenty Twelve, you can simply past the PHP tag for the slider into the header.php file in the position you want your slider to display. Example if using the … Read more
Have you considered Protocol Rewriting? The code below will convert all http: and https: to // for each script, link, base, and image. Place this in your functions.php: add_action( ‘plugins_loaded’, ‘wpse_232287_init’ ); function wpse_232287_init() { // Initiate the function ob_start( ‘wpse_232287_remove_http’ ); } function wpse_232287_remove_http( $buffer ) { // Check for a Content-Type header, only … Read more
Instead of uploading the image as a header image, edit the page and set it as a Featured Image. In the Twenty Eleven theme, this will always display the image as the header image on that page.
create new file in your theme with name header-custom.php next copy this code into that file class customheaderMetabox { private $screen = array( ‘post’, ‘page’, ); private $meta_fields = array( array( ‘label’ => ‘Add Image Header’, ‘id’ => ‘addimageheader_24744’, ‘type’ => ‘media’, ), ); public function __construct() { add_action( ‘add_meta_boxes’, array( $this, ‘add_meta_boxes’ ) ); … Read more
The following one-liner removes regular header images: ! is_admin() && is_front_page() && add_filter( ‘theme_mod_header_image’, ‘__return_false’ ); Usually, header images are saved and retrieved per Theme Modification API, which offers the same filter scheme “theme_mod_$name” for all theme data. Update I see now, the theme is using the post thumbnail as header images on single views: … Read more
On the else if there is missing a closing bracket: } elseif ( is_page(1) ) {. Since all you alter is the file name, it’s sufficient to use the following code: if ( is_home() ) $my_header_image = get_header_image(); elseif ( is_page(1) ) $my_header_image = “http://…/ImageB.png”; elseif ( is_… ) $my_header_image = …; else… ?> <img … Read more
First of all, do not change any files in the twenty thirteen theme. The reason been, twenty thirteen is updated regulary, so if you made changes to the theme, you WILL loose everything you have done to the theme. You should create a child theme You need to change the function that set the header … Read more
This is my proposal, combine get_ancestors and a custom $wpdb query, to retrieve featured images. An example custom function: function inherited_featured_image( $page = NULL ) { if ( is_numeric( $page ) ) { $page = get_post( $page ); } elseif( is_null( $page ) ) { $page = isset( $GLOBALS[‘post’] ) ? $GLOBALS[‘post’] : NULL; } … Read more
There is too little information to be completely sure, but usually this error occurs when WordPress cannot find the graphic library which should be installed on your server. So you should check with your provider to see if Imagick and/or GD are installed. You can also add this little snippet of code in your functions.php … Read more
You could add an ID as post_parent to the attachment of the header image via wp_update_post() (even though this seems to be a very very hacky way to do it!) The tricky part is to get the ID out of the attachment URL; fortunately Rarst solved this issue long time ago, so you can manually … Read more