Edit: curl-helper.php
<?php namespace Yoast\WP\SEO\Helpers; /** * Helper class for getting information about the installed cURL version. */ class Curl_Helper { /** * Checks is cURL is installed. * * @return bool Returns true if cURL is installed. */ public function is_installed() { return \function_exists( 'curl_version' ); } /** * Returns the currently installed cURL version. * * @return string|null Returns a string containing the cURL version, or null if cURL is not installed. */ public function get_version() { $version = \curl_version(); if ( ! isset( $version['version'] ) ) { return null; } return $version['version']; } }
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