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  1. I'm getting an error that says parameter 1 of mysqli_num_rows($r) should be a mysqli_result, Boolean given. Here is the applicable code: $q = "SELECT email, username FROM users WHERE email='$e' OR username='$u'"; $r = mysqli_query($dbc,$q); $rows = mysqli_num_rows($r); //This is where the error occurs. Help would greatly be appreciated! Thank you.
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