BASIC RUNTIME INFO
Hostname        : vps.evosbuildcon.com
PHP Version     : 8.3.31
PHP Binary      : /opt/cpanel/ea-php83/root/usr/sbin/php-fpm
User (UID)      : 1011
Group (GID)     : 1015


Fatal error:  Uncaught Error: Call to undefined function exec() in /home/demotest/public_html/gmail_smtp_test.php:18
Stack trace:
#0 {main}
  thrown in /home/demotest/public_html/gmail_smtp_test.php on line 18