Warning: mysql_real_escape_string(): Access denied for user ''@'localhost' (using password: NO)

Question

When is use the following code without mysql_real_escape_string, works fine. I simply trying to grab a text string that may have apost. from an input form and format it to p

Answer 1

No, you shouldn't mix mysql and mysqli.

Use here instead of mysql_real_escape_string($var):

$con->real_escape_string($var);