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Install the extension dom, fileinfo, iconv, mbstring, zip, pdo_mysql,gd and curl
sudo apt-get install libapache2-mod-php5.6
php5.6-mysql
php5.6-gd php5.6-dom php5.6-mbstring php5.6-zip php5.6-curl
...
...
Install the extension dom, fileinfo, iconv, mbstring, zip, pdo_mysql,gd and curl
sudo apt-get install libapache2-mod-php5.6
php5.6-mysql
php5.6-gd php5.6-dom php5.6-mbstring php5.6-zip php5.6-curl
...