Hi Robert,
> I am running WordPress 5.7 on a BO 5209R using FPM/FastCGI and get error
> "Call to undefined function PHPMailer" when using the PHP 8.0.1 package
> from the BO store. Using 7.4.x works fine.
I just checked what Pear modules the PHP-7.4 and PHP-8.0 have installed:
[root@5209r bin]# /home/solarspeed/php-7.4/bin/pear list
Installed packages, channel pear.php.net:
=========================================
Package Version State
Archive_Tar 1.4.9 stable
Console_Getopt 1.4.3 stable
Mail_Mime 1.10.10 stable
Net_IDNA2 0.1.1 beta
Net_Sieve 1.4.4 stable
Net_Socket 1.2.2 stable
PEAR 1.10.12 stable
Structures_Graph 1.1.1 stable
XML_Util 1.4.5 stable
[root@5209r bin]# /home/solarspeed/php-8.0/bin/pear list
Installed packages, channel pear.php.net:
=========================================
Package Version State
Archive_Tar 1.4.9 stable
Console_Getopt 1.4.3 stable
Mail_Mime 1.10.10 stable
Net_IDNA2 0.1.1 beta
Net_Sieve 1.4.4 stable
Net_Socket 1.2.2 stable
PEAR 1.10.12 stable
Structures_Graph 1.1.1 stable
XML_Util 1.4.5 stable
This looks pretty much the same, so this isn't the problem.
> AH01071: Got error 'PHP message: PHP Fatal error:
> Uncaught Error: Call to undefined function
> PHPMailer\\PHPMailer\\escapeshellcmd() in
> /home/.sites/70/site4/web/wp-includes/PHPMailer/PHPMailer.php:1779\n
I checked Wordpress 5.7 and examined line 1779 in the included
/web/wp-includes/PHPMailer/PHPMailer.php. And it's nothing special, really.
The just run PHP's function escapeshellcmd() on a string. I then did
some testing and created a minimalistic test script:
<? print_r(escapeshellcmd("ls -als")); ?>
That should simply print "ls -als" on execution, provided
escapeshellcmd() is available and works.
I then tried it on a Vsite with PHP-FPM 8.0.3 and it threw the same
error: "Uncaught Error: Call to undefined function escapeshellcmd()"
I then switched the Vsite from PHP-FPM (8.0.3) to suPHP (8.0.3) and it
worked.
I checked the PHP configuration of that Vsite and so far nothing really
sticks out that could explain it. But there sure is something wrong with
PHP-FPM and escapeshellcmd().
I'll need more time to figure this out. In the meantime, please use
PHP-7.4 or switch to suPHP. Sorry.
--
With best regards
Michael Stauber
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