Fixed ErrorException: [E_DEPRECATED] strtolower(): Passing null to parameter #1 ($string) of type string is deprecated

[ZixDev]

Affected version

v2.2.8 Patch 1

I'm using PHP 8.1.1
Server error log

• ErrorException: [E_DEPRECATED] strtolower(): Passing null to parameter #1 ($string) of type string is deprecated
• src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php:256
• Generated by: Unknown account
• Jan 23, 2022 at 10:32 PM

Stack trace​

#0 [internal function]: XF::handlePhpError(8192, '[E_DEPRECATED] ...', '/Users/zix/Docu...', 256)
#1 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php(256): strtolower(NULL)
#2 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php(173): Swift_Transport_Esmtp_AuthHandler->getAuthenticatorsForAgent()
#3 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php(371): Swift_Transport_Esmtp_AuthHandler->afterEhlo(Object(XF\Mail\SmtpTransport))
#4 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(148): Swift_Transport_EsmtpTransport->doHeloCommand()
#5 src/XF/Mail/Mailer.php(288): Swift_Transport_AbstractSmtpTransport->start()
#6 src/XF/Mail/Queue.php(148): XF\Mail\Mailer->send(Object(Swift_Message), Object(XF\Mail\SmtpTransport), Array)
#7 src/XF/Job/MailQueue.php(12): XF\Mail\Queue->run(7.99007)
#8 src/XF/Job/Manager.php(260): XF\Job\MailQueue->run(7.99007)
#9 src/XF/Job/Manager.php(202): XF\Job\Manager->runJobInternal(Array, 7.99007)
#10 src/XF/Job/Manager.php(86): XF\Job\Manager->runJobEntry(Array, 7.99007)
#11 job.php(43): XF\Job\Manager->runQueue(false, 8)
#12 {main}

 

[Moshe1010]

Just happened to us as well with PHP 8.1 and XF 2.2.10 Patch 1:

• ErrorException: [E_DEPRECATED] strtolower(): Passing null to parameter #1 ($string) of type string is deprecated
• src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php:256
• Generated by: Unknown account

Stack trace​

#0 [internal function]: XF::handlePhpError(8192, '[E_DEPRECATED] ...', '/home/devsite/de...', 256)
#1 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php(256): strtolower(NULL)
#2 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php(173): Swift_Transport_Esmtp_AuthHandler->getAuthenticatorsForAgent()
#3 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php(371): Swift_Transport_Esmtp_AuthHandler->afterEhlo(Object(XF\Mail\SmtpTransport))
#4 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(148): Swift_Transport_EsmtpTransport->doHeloCommand()
#5 src/XF/Mail/Mailer.php(294): Swift_Transport_AbstractSmtpTransport->start()
#6 src/addons/TickTackk/DeveloperTools/XF/Mail/Mailer.php(36): XF\Mail\Mailer->send(Object(Swift_Message), Object(XF\Mail\SmtpTransport), Array, true)
#7 src/XF/Mail/Queue.php(148): TickTackk\DeveloperTools\XF\Mail\Mailer->send(Object(Swift_Message), NULL, Array)
#8 src/XF/Job/MailQueue.php(12): XF\Mail\Queue->run(8)
#9 src/XF/Job/Manager.php(260): XF\Job\MailQueue->run(8)
#10 src/XF/Job/Manager.php(202): XF\Job\Manager->runJobInternal(Array, 8)
#11 src/XF/Job/Manager.php(86): XF\Job\Manager->runJobEntry(Array, 8)
#12 src/XF/Cli/Command/RunJobs.php(59): XF\Job\Manager->runQueue(false, 8)
#13 src/vendor/symfony/console/Command/Command.php(255): XF\Cli\Command\RunJobs->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#14 src/vendor/symfony/console/Application.php(992): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#15 src/vendor/symfony/console/Application.php(255): Symfony\Component\Console\Application->doRunCommand(Object(XF\Cli\Command\RunJobs), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#16 src/vendor/symfony/console/Application.php(148): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#17 src/XF/Cli/Runner.php(111): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#18 cmd.php(15): XF\Cli\Runner->run()
#19 {main}

Request state​

array(1) {
["cli"] => string(46) "/home/devsite/cmd.php xf:run-jobs"
}

 

[XF Bug Bot]

Thank you for reporting this issue, it has now been resolved. We are aiming to include any changes that have been made in a future XF release (2.2.11).

Change log:

Update Swiftmailer to v6.3.0 for PHP 8.1 support

There may be a delay before changes are rolled out to the XenForo Community.