plugin class inheritance. cannot change variable

If you call BAR the e-mail address is set to [email protected]. But when you call FOO_SEND_EMAIL, the e-mail address is set to [email protected] because it is overwritten by FOO‘s constructor.

You run $sendEmail = new FOO_SEND_EMAIL, when you do this the constructor of FOO is called. It has nothing to do with whatever $BAR currently is.

error code: 523