What is user_activation_key in wordpress

Question

I'm new to WordPress and want to know what a user_activation_keytable is wp_users? It's like a string of numbers with an encrypted code (similar to a password). Why some users do not have this.

Answer 1

user_activation_keyis one of those keys that WordPress uses to authenticate a password reset request . And you won't find it anywhere in WordPress.

Therefore, when you say that this key is empty for some users, the reason is that these users did not request a password reset.

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