PHP Warning: file_get_contents(http://localhost:8080/assets/mail/template.html): failed to open stream: HTTP request failed!

[lucasdgimenez]

I'm working on a project built with php slim, where I have a registration screen that when clicking on register triggers the /register route of the parent route "/clients"

This is the error:

PHP Warning:  file_get_contents(http://localhost:8080/assets/mail/template.html): failed to open stream: HTTP request failed!

$templateMail = file_get_contents(self::$templateMail);

$message = str_replace('HTMLMessage', $message, $templateMail);

This is the line where the error occurs

The complete file is called Email.php

<?php

	
	namespace App\Services;

	ini_set('display_errors', 1);
	ini_set('display_startup_errors', 1);
	error_reporting(E_ALL);

	use PHPMailer\PHPMailer\PHPMailer;
	
	class Email
	{
		
		private static $HOST = EMAIL_HOST;
		private static $LOGIN = EMAIL_LOGIN;
		private static $PASS = EMAIL_PASS;
		private static $PORT = EMAIL_PORT;
		private static $SMTPSecure = EMAIL_SMTP_SECURE;
		private static $SMTPAuth = EMAIL_SMTP_AUTH;
		private static $templateMail = BASEURL . 'assets/mail/template.html';
		
		public static function send(String $toEmail, String $toName, String $subject, String $message, String $replyTo = null, String $replyToName = null, $attachments = null, $copyTo = null)
		{
			if (ENV == 'local') {
				$toEmail = 'caleksitch@hotmail.com';
				//$toEmail = 'lucasdgimenez@gmail.com';
				$subject = "Teste Fundamenta - {$subject}";
			}

			/*$curl = curl_init();
			curl_setopt($curl, CURLOPT_URL, self::$templateMailURL);
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
			$templateMail = curl_exec($curl);

			if ($templateMail === false) {
				throw new \Exception("Failed to fetch template using cURL: " . curl_error($curl));
			}

			curl_close($curl);*/

			
			$templateMail = file_get_contents(self::$templateMail);

			$message = str_replace('HTMLMessage', $message, $templateMail);
			
			$mail = new PHPMailer;
			$mail->isSMTP();
			$mail->CharSet = 'UTF-8';
			$mail->SMTPDebug = 0; //2 para modo debug
			$mail->Host = self::$HOST;
			$mail->Port = self::$PORT;
			$mail->SMTPSecure = self::$SMTPSecure;
			$mail->SMTPAuth = self::$SMTPAuth;
			$mail->Username = self::$LOGIN;
			$mail->Password = self::$PASS;
			$mail->SMTPOptions = array(
				'ssl' => array(
					'verify_peer' => false,
					'verify_peer_name' => false,
					'allow_self_signed' => true
				)
			);
			$mail->setFrom(self::$LOGIN, 'Fundamenta');
			$mail->Subject = $subject;
			$mail->Body = $message;
			$mail->IsHTML(true);
			if ($replyTo !== null) {
				$mail->addReplyTo(trim($replyTo), $replyToName);
			}
			$mail->addAddress(trim($toEmail), $toName);
			if ($copyTo) {
				for ($i = 0; $i < sizeof($copyTo); $i++) {
					$mail->addCC($copyTo[$i]);
				}
			}
			if ($attachments) {
				foreach ($attachments as $attachment) {
					$mail->addAttachment($attachment[0], $attachment[1]);
				}
			}
			if (!$mail->send()) {
				throw new \Exception($mail->ErrorInfo);
			}
		}
		
		
	}

I've already tried to google this problem and most indicate curl's solution instead of file_get_contents, the problem is that when trying to implement this curl solution (which is commented in the code above) the system runs an infinite loading, I don't know exactly which one that could be the problem.

The php version is 7.4 and the apache version is 2.4.52

[requinix]

private static $templateMail = BASEURL . 'assets/mail/template.html';

This is probably wrong: the template should be a file, not a URL. You need a different constant (or none at all) instead of BASEURL.