Install cURL on Ubuntu

Run the following command to enable curl package php5-curl.

$ sudo apt-get install php5-curl

Reading package lists… Done
Building dependency tree
Reading state information… Done
The following NEW packages will be installed:
0 upgraded, 1 newly installed, 0 to remove and 17 not upgraded.
Need to get 27.1kB of archives.
After this operation, 127kB of additional disk space will be used.
Get:1 lucid-updates/main php5-curl 5.3.2-1ubuntu4.15 [27.1kB]
Fetched 27.1kB in 5s (4818B/s)
Selecting previously deselected package php5-curl.
(Reading database … 43188 files and directories currently installed.)
Unpacking php5-curl (from …/php5-curl_5.3.2-1ubuntu4.15_amd64.deb) …
Processing triggers for libapache2-mod-php5 …
* Reloading web server config apache2 [ OK ]
Setting up php5-curl (5.3.2-1ubuntu4.15) …

Restart apache

$ sudo /etc/init.d/apache2 restart
* Restarting web server apache2 … waiting [ OK ]

Hope this solution will help to enable curl in ubuntu system.