Question

I have some code that that I only want to execute if curl_init() is present. I’m checking for it’s existence with this code:

if(function_exists('curl_init'))
{
    $c = curl_init();
    curl_setopt($c, CURLOPT_URL, 'http://www.my-site.ext/' . $data . '/');
    curl_setopt($c, CURLOPT_HEADER, 0);
    curl_exec($c);
    curl_close($c);
}

The if() returns true, however the code inside throws this error:

Fatal error: Call to undefined function curl_init() in /var/www/wp-content/plugins/my-plugin-name/inc/myplugin_functions.php on line 15

How can I properly check whether curl_init() exists?

Answer 1

You can try is_callable() like this:

if(is_callable('curl_init')){
  //Code here
}