Question
Hello
I have a droplet that is running WordPress on Ubuntu 13.10 and I installed a WordPress plugin give this “cURL is NOT installed in your PHP installation” what do I need to do?
Thank you
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Often, web applications require HTTP based UserID and Password authentication, cookies, and form uploads. Even, user authentication with Google or Facebook sign-in is done via HTTP. In these types of cases, we need to request a particular service server[Like Google’s] for user validation and authentication token on our server. The entire process takes place through the service server’s APIs. The cURL helps our web applications to interact/communicate with those APIs on the HTTP level.
cURL: It is a library created by Daniel Stenberg. The cURL stands for client URL. It allows us to connect with other URLs and use their responses in our code. The cURL is a way that can hit a URL from our code to get an html response from it. The cURL is also used in command lines or scripts for data transfer. cURL with respect to PHP is a library that lets us make HTTP requests in PHP. It’s easier to do GET/POST requests with curl_exec to receive responses from other servers for JSON format data response and to download files.
Required to “enable” cURL: The cURL, by default, is not enabled in Apache. If we try to run CURL programs without enabling CURL in Apache, the browser will throw an error.
Fatal error: Call to undefined function curl_init[]
.
To avoid this, we need to enable the CURL extension in the Apache server
with the following methods in different environments.
Enable CURL in Apache: Enabling CURL in Apache by configuring php.ini file.
- Step 1: Locate PHP.ini file, it is mostly in the server’s root folder or public_html then open the PHP.ini in a text editor
- Step 2: Search or find the ;extension=php_curl.dll with Ctrl+F and remove the semi-colon ‘;’ before it
to activate it.
- Step 3: Save and Close PHP.ini with Ctrl+S and restart Apache from terminal/CMD
Enabling cURL in WAMP: WAMP is a software stack available for Windows that bundle Apache, MySQL, and PHP together. It’s an installation pack for installing the three web technologies on the Windows environment together in a hassle-free GUI guided fashion.
Enabling CURL in Ubuntu: Run the following command:
- This command installs the PHP CURL.
sudo apt-get install php5-curl
- This command starts with the Apache server.
sudo service apache2 restart
Check if CURL is enabled or not: If we try to run a cURL PHP program without cURL being enabled, the browser will throw the following
error.
- Example:
- Output: This page of GeekforGeeks is now
rendered on my localhost running the Apache server. The HTML content is “echoed” as the output.
PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.