Fatal Error when installing 4.2.4

[Inzvestor]

My host upgraded PHP to 5.6.30
I'm running MySQL 5.5.54-cll

When I try and upgrade to 4.2.4 I get
Fatal error: Call to undefined function mysqli_init() in /home/coffeefo/public_html/includes/class_core.php on line 1348

Can anyone please help define what the issue might be?

[Inzvestor]

In case it helps;
DB Server

• Server: Localhost via UNIX socket
• Server type: MySQL
• Server version: 5.5.54-cll - MySQL Community Server (GPL)
• Protocol version: 10
• User: <me>@localhost
• Server charset: UTF-8 Unicode (utf8)

<me> = my details that I have removed for security reasons

Web Server

• cpsrvd 11.64.0.18
• Database client version: libmysql - 5.1.73
• PHP extension: mysqli curl mbstring
• PHP version: 5.6.30

Hope this helps?

[Inzvestor]

I've just filled in the form for install assistance from vBulletin and paid for 1 month phone support
Really hoping to be back online within the 4-7 days stated.

[Paul M]

Fatal error: Call to undefined function mysqli_init() in /home/coffeefo/public_html/includes/class_core.php on line 1348

Can anyone please help define what the issue might be?

The issue is that your host has not installed the MySQLi module for php, only they can fix it.

[Inzvestor]

Thanks Paul
Spot on
Once the host realised this they applied the setting, upgraded my profile to reflect permissions and its back online
I appreciate your prompt response - top support