在WordPress PHP中，可以以任何方式捕获get_header的输出吗？

Question

I notice that with wp_list_categories(), wp_get_archives() and wp_list_pages() one can specify 'echo=0' as part of the parameter string and thus be able to grab the content for further processing before echoing to output stream.

Is there a similar mechanism available for get_header()? Alternatively, is there a way of capturing the evaluated header code before it's returned to the browser? What I'm trying to do is modify the contents of the <title> markup in the HTML.

Answer 1

Wordpress has a filter hook for the title

<?php 
function filter_function_name( $title, $sep, $seplocation ){
  $title .= get_bloginfo( 'name' );
  return $title;
}
add_filter( 'wp_title', 'filter_function_name', 10, 2 ); ?>

Wordpress API for wp_title filter hook