PHPMailer uses deprecated preg_replace() syntax for apparently no reason

[ywarnier]

Current behavior

In class.phpmailer.php::EncodeQ() method, and apparently in other methods as well, the class makes use of a deprecated syntax of preg_replace('/.../e', x, y) where "e" means eval. Then 'x' is a form that apparently needs to be eval'ed. However, 'x' is usually something like this:

"'='.sprintf('%02X', ord('\\1'))"

which, as far as I can see, could very well be translated to something like this:

'='.sprintf('%02X', ord('\\1'))

(and the 'e' could be removed)
The calls deprecation alerts are "hidden" by a @ sign, but... obviously this is not ideal. Maybe just updating the PHPMailer library would do.

[jmontoyaa]

PHPMailer is not used anymore in Chamilo2 it's replaced by SwiftMailer