CURL stands for Client URL. It is a Linux Terminal command which is used to transferring data from one server to another server. It is a free and open-source data transfer tool that uses the following protocols: IMAP, IMAPS, POP, POP3, POP3S, DICT, FILE HTTP, HTTPS, SMB, SMBS, SMTP, SMTPS, FTP, FTPS, TELNET, RTSP, RMTP, and TFTP.
It displays a meter-like progress bar while running and indicating various parameters like the amount of transferred data, speed of data transfer and estimated time left.
Following are the steps for the installation of PHP-CURL on your Ubuntu system:
- Step 1: Install PHP libraries for the server by running the following command:
$ sudo add-apt-repository ppa:ondrej/php
- Step 2: Then, update the server:
$ sudo apt update
- Step 3: Now, install CURL.
$ sudo apt install curl
- Step 4: You can check the version of curl installed by the command:
$ dpkg -l curl
- Step 5: Once you have installed CURL on Ubuntu 18.04 PHP server, you need to restart your webserver on which PHP is running:
If you are using Apache server then use either of the following commands to restart the server:
$ sudo service apache2 restart
$ sudo /etc/init.d/apache2 restart
Similarly, if you are using Nginx server, then use either of the following commands:
$ sudo systemctl restart nginx
$ sudo /etc/init.d/nginx restart