Replacing valid_email() with filter_var()

Replying to my own question here:

It appears that I've been confused about a few things: While the valid_email() function from the Email Helper is deprecated, the valid_email() function from the Form Validation Library is not.

Obviously, I was just confused by the two functions having the same name, but one is located in the file system/helpers/email_helper.php, and the other is located in the file system/helpers/Form_validation.php.

Sorry for the mixup.

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Claus