GitHub

Call to undefined function wpcf7_include_module_file()

An error of type E_ERROR was caused in line 3 of the file /wp-content/plugins/contact-form-7/modules/constant-contact/constant-contact.php. Error message: Uncaught ...
GitHub

undefined function apache_getenv()

My webserver stack is CentOS 6.4 + Apache + php-fpm via mod_fastcgi.so. I've tried Ubuntu 12.04 also. PHP Fatal error: Call to undefined function apache_getenv() in ...
Ars Technica

Call to undefined function: mysqli_connect()

I'm trying to connect to a mysql database using php, and I keep getting this error:<BR><BR>Call to undefined function: mysqli_connect()<BR><BR>Most of my googling found people who have this problem ...