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basically, I have a cookie with the category slug stored, using this data I want to query the database and return the ID of the category.

I am new to mysql and this seems like an advanced query that may need to use joins, any help or guidance would be much appreciated.

Thank you!

Reference: http://codex.wordpress.org/File:WP3.0-ERD.png

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Instead of writing custom SQL, you should be able to just use the native get_category_by_slug() which will return a full category object to include the category ID.

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  • It is in a file completely separate from wordpress.
    – 1321941
    May 19, 2012 at 2:50
  • What is in a file completely separate from wordpress?
    – mor7ifer
    May 19, 2012 at 10:58

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