CodeIgniter - Sending Email

Sending email in CodeIgniter is much easier. You also configure the preferences regarding email in CodeIgniter. CodeIgniter provides following features for sending emails −
Multiple Protocols − Mail, Sendmail, and SMTP
TLS and SSL Encryption for SMTP
Multiple recipients
CC and BCCs
HTML or Plaintext email
Attachments
Word wrapping
Priorities
BCC Batch Mode, enabling large email lists to be broken into small BCC batches.
Email Debugging tools
Email class has the following functions to simplify the job of sending emails.
$from (string) − “From” e-mail address
$name (string) − “From” display name
$return_path (string) − Optional email address to redirect undelivered e-mail to
$replyto (string) − E-mail address for replies
$name (string) − Display name for the reply-to e-mail address
$to (mixed) − Comma-delimited string or an array of e-mail addresses
$cc (mixed) − Comma-delimited string or an array of e-mail addresses
$bcc (mixed) − Comma-delimited string or an array of e-mail addresses
$limit (int) − Maximum number of e-mails to send per batch
$subject (string) − E-mail subject line
$body (string) − E-mail message body
$str (string) − Alternative e-mail message body
$header (string) − Header name
$value (string) − Header value
$clear_attachments (bool) – Whether or not to clear attachments
$auto_clear (bool) − Whether to clear message data automatically
$filename (string) − File name
$disposition (string) − ‘disposition’ of the attachment. Most email clients make their own decision regardless of the MIME specification used here. iana
$newname (string) − Custom file name to use in the e-mail
$mime (string) − MIME type to use (useful for buffered data)
$filename (string) − Existing attachment filename
To send an email using CodeIgniter, first you have to load email library using the following −
$this->load->library('email');

After loading the library, simply execute the following functions to set necessary elements to send an email. The from() function is used to set − from where the email is being sent and to() function is used − to whom the email is being sent. The subject() and message() function is used to set the subject and message of the email.
$this->email->from('your@example.com', 'Your Name');
$this->email->to('someone@example.com');
 
$this->email->subject('Email Test');
$this->email->message('Testing the email class.');
After that, execute the send() function as shown below to send an email.
$this->email->send();

Create a controller file Email_controller.php and save it in application/controller/Email_controller.php.
<?php 
   class Email_controller extends CI_Controller { 
 
      function __construct() { 
         parent::__construct(); 
         $this->load->library('session'); 
         $this->load->helper('form'); 
      } 
		
      public function index() { 
	
         $this->load->helper('form'); 
         $this->load->view('email_form'); 
      } 
  
      public function send_mail() { 
         $from_email = "your@example.com"; 
         $to_email = $this->input->post('email'); 
   
         //Load email library 
         $this->load->library('email'); 
   
         $this->email->from($from_email, 'Your Name'); 
         $this->email->to($to_email);
         $this->email->subject('Email Test'); 
         $this->email->message('Testing the email class.'); 
   
         //Send mail 
         if($this->email->send()) 
         $this->session->set_flashdata("email_sent","Email sent successfully."); 
         else 
         $this->session->set_flashdata("email_sent","Error in sending Email."); 
         $this->load->view('email_form'); 
      } 
   } 
?>
Create a view file called email_form.php and save it at application/views/email_form.php
<!DOCTYPE html> 
<html lang = "en"> 

   <head> 
      <meta charset = "utf-8"> 
      <title>CodeIgniter Email Example</title> 
   </head>
	
   <body> 
      <?php 
         echo $this->session->flashdata('email_sent'); 
         echo form_open('/Email_controller/send_mail'); 
      ?> 
		
      <input type = "email" name = "email" required /> 
      <input type = "submit" value = "SEND MAIL"> 
		
      <?php 
         echo form_close(); 
      ?> 
   </body>
	
</html>
Make the changes in the routes.php file in application/config/routes.php and add the following line at the end of the file.
$route['email'] = 'Email_Controller';

Execute the above example by visiting the following link. Replace the yoursite.com with the URL of your site.
http://yoursite.com/index.php/email

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