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I know that a should set a cookie before any output.

I want to set a cookie with the actual page's taxonomy name. To get the taxonomy name I am using get_query_var('taxonomy).

The problem is:

If I hook the cookie creation into init the get_query_var returns empty. If I hook it too late I get a headers already sent error.

How can I accomplish this?

  • I do have a select field to sort page results (price asc/desc, title asc/desc). To reorder the items I need to re-run the query and for that I need to know the taxonomy name and terms . The request to reorder the items is sent via ajax... – Bruno Rodrigues Apr 14 '16 at 13:01
  • you could send that data with your ajax request rather than set a cookie. – Milo Apr 14 '16 at 19:01
  • There is a case when I need to set the cookies inside an other AJAX request. That's why I need cookies here... – Bruno Rodrigues Apr 15 '16 at 0:53
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Try hooking on the get_header action hook. That's the last action hook before headers are output.

  • template_redirect is technically the last action that is guaranteed to execute before output. whether or not get_header is called before output starts is theme-dependent and may not work consistently across all themes. – Milo Apr 15 '16 at 4:22

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