install the php libcurl extension on ubuntu

"

• You are missing the curl extension
• You are missing the gd extension
• You are missing the mcrypt extension
• You are missing the pdo_mysql extension

"
How to install the php libcurl extension on ubuntu:

sudo apt-get install php5-curl

apt-get install php5-gd
apt-get install php5-mcrypt
apt-get install php5-mysql