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how can I tell WordPress, that if a user registers, it shall execute my function?

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up vote 9 down vote accepted

You can use user_register action hook which fires after a user has registered and passes $user_id as a variable:


function my_function($user_id){
  //do your stuff
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is there any hook just before inserting into database? – Atif Mohammed Ameenuddin Nov 2 '12 at 21:42
In case that someone want to know @AtifMohammedAmeenuddin question. You can use register_post to hook before register user to db. – vee Jul 8 '15 at 14:23

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