php man page for curl_version

CURL_VERSION(3) 							 1							   CURL_VERSION(3)

curl_version - Gets cURL version information

SYNOPSIS
       array curl_version ([int  $age = CURLVERSION_NOW])

DESCRIPTION
	Returns information about the cURL version.

PARAMETERS
	      o $age
		-

RETURN VALUES
	Returns an associative array with the following elements:

       +-------------------+-------------------------------------------------+
       |      Indice	   |						     |
       |		   |						     |
       |		   |		    Value description		     |
       |		   |						     |
       +-------------------+-------------------------------------------------+
       |  version_number   |						     |
       |		   |						     |
       |		   |	       cURL 24 bit version number	     |
       |		   |						     |
       |     version	   |						     |
       |		   |						     |
       |		   |	    cURL version number, as a string	     |
       |		   |						     |
       |ssl_version_number |						     |
       |		   |						     |
       |		   |	      OpenSSL 24 bit version number	     |
       |		   |						     |
       |   ssl_version	   |						     |
       |		   |						     |
       |		   |	   OpenSSL version number, as a string	     |
       |		   |						     |
       |   libz_version    |						     |
       |		   |						     |
       |		   |	    zlib version number, as a string	     |
       |		   |						     |
       |       host	   |						     |
       |		   |						     |
       |		   | Information about the host where cURL was built |
       |		   |						     |
       |       age	   |						     |
       |		   |						     |
       |		   |						     |
       |		   |		       T{ features		     |
       |		   |						     |
       |		   |   A bitmask of the CURL_VERSION_XXX constants   |
       |		   |						     |
       |    protocols	   |						     |
       |		   |						     |
       |		   |  An array of protocols names supported by cURL  |
       |		   |						     |
       +-------------------+-------------------------------------------------+
EXAMPLES
       Example #1

	      curl_version(3) example

	       This example will check which features that's available in cURL build by using the 'features' bitmask returned by curl_version(3).

	      <?php
	      // Get curl version array
	      $version = curl_version();

	      // These are the bitfields that can be used
	      // to check for features in the curl build
	      $bitfields = Array(
			  'CURL_VERSION_IPV6',
			  'CURL_VERSION_KERBEROS4',
			  'CURL_VERSION_SSL',
			  'CURL_VERSION_LIBZ'
			  );

	      foreach($bitfields as $feature)
	      {
		  echo $feature . ($version['features'] & constant($feature) ? ' matches' : ' does not match');
		  echo PHP_EOL;
	      }
	      ?>

PHP Documentation Group 													   CURL_VERSION(3)