SMTP connection failed - php

Question

I'm facing this issue from last three days, before this script worked perfectly. Now getting error:
SMTP ERROR: Failed to connect to server: (0) 2017-10-06 21:05:34 SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting Message was not sent.Mailer error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
ahsanazhar12#gmail.com
Here is my script:
require 'PHPMailer/PHPMailerAutoload.php';
$mail = new PHPMailer;
$mail->SMTPDebug = 2; // Enable verbose debug output
$mail->isSMTP(); // Set mailer to use SMTP
$mail->Host = 'smtp.gmail.com'; // Specify main and backup SMTP servers
$mail->SMTPAuth = true; // Enable SMTP authentication
$mail->Username = 'example#gmail.com'; // SMTP username
$mail->Password = 'mypassword'; // SMTP password
$mail->SMTPSecure = 'tls'; // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587;
$mail->setFrom('example#gmail.com', 'Your Name');
$mail->addAddress('example#gmail.com', 'My Friend');
$mail->Subject = 'First PHPMailer Message';
$mail->Body = 'Hi! This is my first e-mail sent through PHPMailer.';
if (!$mail->send()) {
echo 'Message was not sent.';
echo 'Mailer error: ' . $mail->ErrorInfo;
} else {
echo 'Message has been sent.';
}
I think Gmail may have changed settings for sending emails using SMTP, or something like that.

Answer 1

Finally i'm able to send emails from localhost. Here is my code.
To install:
Download PHPMailer
Add it to your project (i put it on root)
Add Autoload class to your Script.
Rest of code is below
require "PHPMailer/PHPMailerAutoload.php";
$mail = new PHPMailer;
$mail->SMTPOptions = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true
)
);
//$mail->SMTPDebug = 2; // Enable verbose debug output
$mail->isSMTP(); // Set mailer to use SMTP
$mail->Host = 'smtp.gmail.com'; // Specify main and backup SMTP servers
$mail->SMTPAuth = true; // Enable SMTP authentication
$mail->Username = 'example#gmail.com'; // SMTP username
$mail->Password = 'securepass'; // SMTP password
$mail->SMTPSecure = 'ssl'; // Enable TLS encryption, `ssl` also accepted
$mail->Port = 465; // TCP port to connect to
//Recipients
$mail->setFrom('example#gmail.com', "Mailer");
$mail->addAddress("example#gmail.com","receiver Name");
$mail->isHTML(true);
$mail->Subject = "Subject";
$mail->Body = "Body";
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
if( $mail->send()){
return array("msg"=>msg("success","Email has been sent.<br>"));
} else {
return array("msg"=>msg("error","Email can't send.Try Again<br>"));
}