A post or page has only one title, the title tag <title> is the document title. The filter wp_title filters the output of wp_title() function, which was used before to output the title of the document. In WordPress 4.1, the title-tag support in themes was introduced and wp_get_document_title() is used instead of wp_title(). So, if … Read more
The two are not 100% identical, though they are close. the_title() will echo content by default but the third parameter can be used to change that default. the_title() prepends the optional $before and appends the optional $after arguments. If theme or plugin code uses these arguments the output of the two functions will be different. … Read more
1. Change post title in post list column I misunderstood what you wanted – obviously. You can do that like this: add_action( ‘admin_head-edit.php’, ‘wpse152971_edit_post_change_title_in_list’ ); function wpse152971_edit_post_change_title_in_list() { add_filter( ‘the_title’, ‘wpse152971_construct_new_title’, 100, 2 ); } function wpse152971_construct_new_title( $title, $id ) { //print_r( $title ); //print_r( $id ); return ‘new’; } Making use of the admin_head-$hook_suffix … Read more