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Hello Everyone, This problem will arrived when you would install Zabbix server with PHP 7.1: Just a tweak can be solved this problem, Please follow below guide: Go to include directory in the zabbix server installation directory. In my case I have installed in /usr/share/zabbix. So please change this to your own directory. Also I preferred the vim command to edit a file, you can replace it your own choice. # cd /usr/share/zabbix/include # vim func.inc.php

Here is the complete guide of how to install Zabbix centralized monitoring Server in Ubuntu 16.04. I will install this with MySQL 5.7 and PHP 7.1. I Hope you would like this. Run the following commands for update all the repository and upgrade the installed package: Repository update: # apt update -y # apt upgrade -y Install and configure Apache2 (Web Server): # apt install apache2 apache2-utils -y # a2enmod rewrite # a2enmod deflate # a2enmod ssl # a2enmod headers # sed -i '165s/Options Indexes FollowSymLinks/Options FollowSymLinks/g' /etc/apache2/apache2.conf # sed -i '166s/AllowOverride None/AllowOverride All/g' /etc/apache2/apache2.conf # echo "ServerSignature Off" >> /etc/apache2/apache2.conf # /etc/init.d/apache2 restart Now we have to Install and Configure PHP 7.1: # apt-get install python-software-properties -y # add-apt-repository ppa:ondrej/php # apt-get update -y # apt-get install -y php7.1 php7.1-mcrypt php7.1-mbstring php