How To Replace Some Characters With Asterisks

Question

I have a simple task to do with PHP, but since I\'m not familiar with Regular Expression or something... I have no clue what I\'m going to do.

what I want is very si

Answer 1

I create one function to do this, works fine for me. i hope help.

function ofuscaEmail($email, $domain_ = false){

    $seg = explode('@', $email);
    $user = '';
    $domain = '';

    if (strlen($seg[0]) > 3) {
        $sub_seg = str_split($seg[0]);
        $user .= $sub_seg[0].$sub_seg[1];
        for ($i=2; $i < count($sub_seg)-1; $i++) { 
            if ($sub_seg[$i] == '.') {
                $user .= '.';
            }else if($sub_seg[$i] == '_'){
                $user .= '_';
            }else{
                $user .= '*';
            }
        }
        $user .= $sub_seg[count($sub_seg)-1];
    }else{
        $sub_seg = str_split($seg[0]);
        $user .= $sub_seg[0];
        for ($i=1; $i < count($sub_seg); $i++) { 
            $user .= ($sub_seg[$i] == '.') ? '.' : '*';
        }
    }

    $sub_seg2 = str_split($seg[1]);
    $domain .= $sub_seg2[0];
    for ($i=1; $i < count($sub_seg2)-2; $i++) { 
        $domain .= ($sub_seg2[$i] == '.') ? '.' : '*';
    }

    $domain .= $sub_seg2[count($sub_seg2)-2].$sub_seg2[count($sub_seg2)-1];

    return ($domain_ == false) ? $user.'@'.$seg[1] : $user.'@'.$domain ;

}