apply_filters from within a Class (WordPress) -

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i'm writing plugin makes use of wp_mail function. want change from: address. wp provides filters - wp_mail_from_name , wp_mail_from - i'm not sure how call them within class.

if place them outside of function there's parse error (unexpected t_string, expecting t_function).

if place them within function nothing seems happen

class myplugin {         public function setfromname($fromname) {         apply_filters( 'wp_mail_from_name', $fromname );         $this->fromname = $fromname;     }     public function setfromemail($fromemail) {         apply_filters( 'wp_mail_from', $fromemail );         $this->fromemail = $fromemail;     } }

how possible affect these filters within class?

in wordpress filters must have call back, can not use variable.

class myplugin {     public function myplugin {         add_filter( 'wp_mail_from_name', array($this, 'filter_mail_from_name'));         add_filter( 'wp_mail_from', array($this, 'filter_mail_from'));     }      function filter_mail_from_name( $from_name ) {         // $from_name comes wordpress, default $from_name         // must modify $from_name within function before returning         return $from_name;     }      function filter_mail_from( $from_email ) {         // $from_email comes wordpress, default $from_name         // must modify $from_email within function before returning         return $from_email;     } }

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