Send email via Gmail SMTP using PHPMailer and Codeigniter 4

By Mr. Rahul February 7, 2022 php, Codeigniter 0 Comments

PHPMailer is the most useful library in PHP for send secure SMTP email from server. So every project must needs this library to send email from SMTP. In this tutorial we learn how to send email using Gmail SMTP with help of PHPmailer Codeigniter 4 and fix problem while using this library. so lets start.

Install PHPMailer with composer
Setting in Google account for send email
write code for sending email with PHPMailer

1. Install PHPMailer with composer :

You need to run following command in your project’s root directory.

composer require phpmailer/phpmailer

1	composer require phpmailer/phpmailer

2. Setting in gmail account before sending email

Firstly you need to do some security settings in Gmail account so you will go in Google Account Settings.
Disable 2-step-verification
Go to Myaccount -> security tab
Turn on “Less secure app”

Now your google account is ready to sending SMTP email

3. Write code for sending email with phpmailer

Create the controller name with Home.php under app/Controllers/Home.php

<?php
namespace App\Controllers;
use App\Controllers\BaseController;
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
class Home extends BaseController
{
	public function __construct(){}
	
	public function index(){
		 echo view('email');
	}
	
	function send_mail($email,$subject,$message) { 
        $email = $this->request->getVar('mailTo');
        $subject = $this->request->getVar('subject');
        $message = $this->request->getVar('message');
        
        $mail = new PHPMailer(true);  
		try {
		    
		    $mail->isSMTP();  
			//$mail->SMTPDebug = 2;
		    $mail->Host = 'smtp.gmail.com';     // Specify main and backup server
			$mail->SMTPAuth = true;             // Enable SMTP authentication
			$mail->Username = 'gmailaccount@gmail.com';    // SMTP username
			$mail->Password = 'XXXXXX';
			$mail->SMTPSecure   = 'tls';  
			$mail->Port         = 25;  
			$mail->Subject      = $subject;
			$mail->Body         = $message;
			$mail->SMTPOptions = array(
			'ssl' => array(
				'verify_peer' => false,
				'verify_peer_name' => false,
				'allow_self_signed' => true
			)
							);
			$mail->setFrom('gmailaccount@gmail.com', 'Your Name');
			
			$mail->addAddress($email);  
			$mail->isHTML(true);      
			
			if(!$mail->send()) {
			    return false;
			}
		    else {
			    return true;
		    }
		    
		} catch (Exception $e) {
		    return "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
		}
        
    }
	
}

<?php

namespace App\Controllers;

use App\Controllers\BaseController;

use PHPMailer\PHPMailer\PHPMailer;

use PHPMailer\PHPMailer\Exception;

class Home extends BaseController

{

public function __construct(){}

public function index(){

echo view('email');

}

function send_mail($email,$subject,$message) {

$email = $this->request->getVar('mailTo');

$subject = $this->request->getVar('subject');

$message = $this->request->getVar('message');

$mail = new PHPMailer(true);

try {

$mail->isSMTP();

//$mail->SMTPDebug = 2;

$mail->Host = 'smtp.gmail.com'; // Specify main and backup server

$mail->SMTPAuth = true; // Enable SMTP authentication

$mail->Username = 'gmailaccount@gmail.com'; // SMTP username

$mail->Password = 'XXXXXX';

$mail->SMTPSecure = 'tls';

$mail->Port = 25;

$mail->Subject = $subject;

$mail->Body = $message;

$mail->SMTPOptions = array(

'ssl' => array(

'verify_peer' => false,

'verify_peer_name' => false,

'allow_self_signed' => true

)

);

$mail->setFrom('gmailaccount@gmail.com', 'Your Name');

$mail->addAddress($email);

$mail->isHTML(true);

if(!$mail->send()) {

return false;

}

else {

return true;

}

} catch (Exception $e) {

return "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";

}

app/Views/email.php

<form action="<?php echo base_url('home/send_mail') ?>" class="form-horizontal" id="add_email_form" autocomplete="off" method="post" accept-charset="utf-8">
    <div class="form-group">
        <label for="inputName" class="col-sm-2 control-label">Recipient Email</label>
        <div class="col-sm-10">
    
            <input type="text" name="mailTo" value="" id="mailTo" placeholder="Recipient Email Address" class="form-control" required />
        </div>
    </div>
    <div class="form-group">
        <label for="inputName" class="col-sm-2 control-label">Subject</label>
        <div class="col-sm-10">
            <input type="text" name="subject" value="" id="subject" placeholder="Subject" class="form-control" required />
        </div>
    </div>
    <div class="form-group">
        <label for="inputName" class="col-sm-2 control-label">Message</label>
        <div class="col-sm-10">
            <textarea class="form-control" name="message" id="message"></textarea>
        </div>
    </div>
    <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
            <button type="submit" class="btn btn-info">Send Email</button>
        </div>
    </div>
</form>

<form action="<?php echo base_url('home/send_mail') ?>" class="form-horizontal" id="add_email_form" autocomplete="off" method="post" accept-charset="utf-8">

<label for="inputName" class="col-sm-2 control-label">Recipient Email</label>

</div>

<label for="inputName" class="col-sm-2 control-label">Subject</label>

</div>

<label for="inputName" class="col-sm-2 control-label">Message</label>

</div>

<button type="submit" class="btn btn-info">Send Email</button>

</div>

</form>

Now run your project with this command in your terminal:

php spark serve

1	php spark serve

Open your browser and open this link:
http://localhost:8080

Thanks for visiting. If you have any problem or any of query you can contact feel free.

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About Author

@rahul

Website designer, Full stack developer, Blogger with 10+ years of experience.

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Send email via Gmail SMTP using PHPMailer and Codeigniter 4

1. Install PHPMailer with composer :

2. Setting in gmail account before sending email

3. Write code for sending email with phpmailer

About Author

@rahul

Add a Comment

1. Install PHPMailer with composer :

2. Setting in gmail account before sending email

3. Write code for sending email with phpmailer

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About Author

@rahul

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