What is WordPress Hook: pre_user_email
The pre_user_email hook in WordPress is used to modify the user’s email address before it is added to the database. This hook allows developers to perform custom validation or make changes to the email address before it is saved.
Understanding the Hook: pre_user_email
The pre_user_email hook is located in the wp_insert_user() function, which is called when a new user is added to the database. This hook is triggered just before the user’s email address is saved, allowing developers to intervene in the process.
Hook Parameters (if applicable): pre_user_email
The pre_user_email hook accepts two parameters: $user_email and $errors. The $user_email parameter contains the email address being processed, while the $errors parameter holds any errors that have been detected during the validation process.
Hook Doesn’t Work: pre_user_email
If the pre_user_email hook doesn’t seem to be working, it could be due to the hook being overridden by another plugin or theme. It’s also possible that the hook is not being called at the expected point in the code. To troubleshoot, developers should check for conflicts with other plugins and verify that the hook is being triggered as expected.
Best Practices & Usage Notes (if applicable): pre_user_email
When using the pre_user_email hook, developers should be cautious about making extensive changes to the user’s email address, as this could lead to unexpected behavior or errors. It’s best to use this hook for minor modifications or validation checks rather than extensive alterations.
Usage Example: pre_user_email
“`php
function custom_email_validation( $user_email, $errors ) {
// Perform custom validation on the user’s email address
if ( ! filter_var( $user_email, FILTER_VALIDATE_EMAIL ) ) {
$errors->add( ‘invalid_email’, __( ‘Please enter a valid email address.’, ‘textdomain’ ) );
}
return $user_email;
}
add_filter( ‘pre_user_email’, ‘custom_email_validation’, 10, 2 );
“`
