PHP - what is the form with sending to email?

Question

PHP

Hello, the problem is the following.
There is an urgent need to install the form on the page kontaktformular-erstellen.berlinwebworld.de/editor
was taken The problem server reports the following when sending: sendmail: fatal: www-data(33): No recipient addresses found in message header Code responsible for the letter:

$this->cfg['captacha_length'] = 6;
    
    $this->cfg['emailaddress'] = $cfg['[email protected]'];
    
    $this->cfg['confirmation_email_subject'] = 'New message sent from your website';
    
    $this->cfg['form_validationmessage'] = $cfg['form_validationmessage'];
    
    $this->cfg['form_error_captcha'] = $cfg['form_error_captcha'];
    $this->cfg['form_error_emptyfield'] = $cfg['form_error_emptyfield'];
    $this->cfg['form_error_invalidemailaddress'] = $cfg['form_error_invalidemailaddress'];
    $this->cfg['form_validationmessage'] = $cfg['form_validationmessage'];
    $this->cfg['form_emailnotificationinputid'] = $cfg['form_emailnotificationinputid'];
    $this->cfg['form_emailnotificationtitle'] = $cfg['form_emailnotificationtitle'];
    $this->cfg['form_emailnotificationmessage'] = $cfg['form_emailnotificationmessage'];
    
    
    $this->mailheaders_brut .= "From: ".$this->cfg['emailaddress']."<".$this->cfg['emailaddress'].">\r\n";
    $this->mailheaders_brut .= "Reply-To: ".$this->cfg['emailaddress']."<".$this->cfg['emailaddress'].">\r\n";
    $this->mailheaders_brut .= "MIME-Version: 1.0\r\n";
    $this->mailheaders_brut .= "Content-type: text/plain; charset=utf-8\r\n";
    $this->mailheaders_brut .= "X-Mailer: PHP/".phpversion()."\r\n";
    
    $this->demo = 0;
    $this->envato_link = 'http://codecanyon.net/item/contact-form-generator/1719810';
  }
  
  
  function sendMail()
  {
    $mail_body .= 'You received a new message: '.date("F j, Y, g:i A")
          ."\r\n"."--------------------------------------------------------";

Please help me figure out the problem or find an alternative solution.

Answer 1

php mail()
https://php.net/manual/en/function.mail.php