enable php mbstring extension linux redhat code example

Example 1: install php-mbstring in ubuntu

sudo apt-get install php7.2-mbstring
  	
    sudo apt-get install libapache2-mod-php7.2
	
   	sudo service apache2 restart

Example 2: php enable extension ubuntu

### Syntax
phpenmod MODULE_NAME

### Enable mbstring php module
phpenmod mbstring