Question 8386 in PHP Versions Question posted in
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Error when sending mail with Laravel and PHP 8.1 – PHP Versions

My server (Ubuntu 20.4) updated and this impacted the version of PHP which was upgraded to 8.1 and since I got this error message when I try to send a mail from my Laravel application:

strtolower(): Passing null to parameter #1 ($string) of type string is deprecated

My current PHP version is 8.1 and Laravel 8.64.0.

Need help!

I looked in this forum (https://github.com/laravel/framework/issues/39686), but the I’m a little bit confused because I don’t see any entry in my composer.json file and yet Swiftmailer is already part of the project.

Error message

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3

Answers


  1. 0

    Please upgrade to Swiftmailer 6.3.0 which provides PHP 8.1 support.

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  2. 0

    I also faced the same problem I just upgraded my swiftmailer by this command

    composer require "swiftmailer/swiftmailer:^6.3"
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  3. 0

    If swiftmailer is not in your composer.json, then how is it a part of your project? Kindly verify.
    For getting the latest stable version you can simply use the command

    composer require swiftmailer/swiftmailer

    Just FYI, this package is abandoned now and no more maintained. Instead you should use symfony/mailer.

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