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I am trying to change the title of my detail page to the name of the car. I have made a plugin that fills the detail page with the car information. But now I can't get the add_filter('wp_title') to work in my plugin.
Here is the code I tried:
function init() {
hooks();
}
add_action('wp', 'init');
function hooks() {
if(get_query_var('car_id') != "") {
add_filter('wp_title', 'addTitle', 100);
add_action('wp_head', 'fillHead');
}
add_shortcode('showCar', 'showCar');
}
function addTitle() {
$api_url_klant = API_URL . '/gettitle/' . get_option("ac") . '/' . get_query_var('car_id');
$title = getJSON($api_url_klant);
return $title['merk'] . " " . $title['model'] . " - " . $title['bedrijf'];
}
The addTitle() function works just fine. It returns the right name. Also the add_action('wp_head') works as well. I only can't get the wp_title filter not to work.
Am I executing this filter at the wrong moment or what am I doing wrong?
310
If anyone else is having problems with this, it may be due to the Yoast plugin. Use:
add_filter( 'pre_get_document_title', function( $title ){
// Make any changes here
return $title;
}, 999, 1 );
I can't tell from the code you have provided, but are you using:
<title><?php wp_title(); ?></title>
in your <head>, under header.php?
UPDATE
Apparently a change was made to the way titles are handled as of 4.4. Here is a link that explains how to use the new code:
https://www.developersq.com/change-page-post-title-wordpress-4-4/
/*
* Override default post/page title - example
* @param array $title {
* The document title parts.
*
* @type string $title Title of the viewed page.
* @type string $page Optional. Page number if paginated.
* @type string $tagline Optional. Site description when on home page.
* @type string $site Optional. Site title when not on home page.
* }
* @since WordPress 4.4
* @website: www.developersq.com
* @author: Aakash Dodiya
*/
add_filter('document_title_parts', 'dq_override_post_title', 10);
function dq_override_post_title($title){
// change title for singular blog post
if( is_singular( 'post' ) ){
// change title parts here
$title['title'] = 'EXAMPLE';
$title['page'] = '2'; // optional
$title['tagline'] = 'Home Of Genesis Themes'; // optional
$title['site'] = 'DevelopersQ'; //optional
}
return $title;
}
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