'Laravel 5.5 won't render email with PHP 7.4

I am trying to render an email in Laravel 5.5, but no matter what I do, I get the following error on render: ErrorException (E_NOTICE) Trying to access array offset on value of type null

happens in \vendor\egulias\email-validator\EmailValidator\Parser\Parser.php

I am running php 7.4 and I believe the error does NOT happen on php 7.3.

web.php:

Route::get('scratch', function(){
  $mail = new Test();
  return $mail->render();
});

Test.php

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;

class Test extends Mailable
{
  use Queueable, SerializesModels;

  public $subscription;

  /**
   * Create a new message instance.
   *
   * @return void
   */
  public function __construct()
  {
  }

  /**
   * Build the message.
   *
   * @return $this
   */
  public function build()
  {
    return $this->view('emails.test');
  }
}

test.blade.php

Hello from world

I'm thinking this has to be an issue with Laravel 5.5 and PHP 7.4. I can change my version but I'd like to avoid that if possible. Upgrading Laravel won't work for this application.

edit

It's failing on this line in vendor\egulias\email-validator\EmailValidator\Parser\Parser.php

 protected function escaped()
    {
        $previous = $this->lexer->getPrevious();
 
        if ($previous['type'] === EmailLexer::S_BACKSLASH  // here
            &&
            $this->lexer->token['type'] !== EmailLexer::GENERIC
        ) {
            return true;
        }
 
        return false;
    }
phplaravel


Solution 1:[1]

Issue is that egulias/email-validator 2.1.7 has php 7.4 issues. Simple composer update fixed it.

Solution 2:[2]

In my case i have just updated code In line 147 of this file vendor\egulias\email-validator\EmailValidator\Parser\Parser.php i have just updated it as

Previous code was if ($previous['type'] === EmailLexer::S_BACKSLASH New code if (isset($previous['type']) && $previous['type'] === EmailLexer::S_BACKSLASH and my problem solved.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 mkrell
Solution 2 Aadi Tripathi

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