I am writing a PHP script that operates on a MySQL database that uses the
e-mail address as the primary key. If the e-mail doesn't exist in the database
(when a form is submitted), I want to insert a new record. If it does, I want
to update the existing record.
How can I make the query that
I had a similar question about case-sensitivity, and I was told that MySQL
is automatically case-insensitive! But it depends on your version of MySQL.
Go to the mysql manual and look at chapter 20.16 "Case sensitivity in
searches".
In the newest versions of MySQL, all searches are
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