ZendService Twitter fails on Client connect() - php

Question

Having problems connecting with the Twitter API through ZendService/Twitter/Twitter.
Error: Fatal error: Call to a member function connect() on a non-object in somepath/vendor/zendframework/zendframework/library/Zend/Http/Client.php on line 1358
$config = array (
'access_token' => array (
'token' => 'dummy',
'secret' => 'dummy'
),
'oauth_options' => array (
'consumerKey' => 'dummy',
'consumerSecret' => 'dummy'
),
'http_client_options' => array (
'adapter' => 'Zend\Http\Client\Adapter\Curl',
'curloptions' => array (
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_SSL_VERIFYPEER => false
)
)
);
$twitter = new Twitter ( $config );
print_r ($twitter->account->verifyCredentials ());
Using curl 7.26.0 (x86_64-pc-linux-gnu) OpenSSL/1.0.1e
PHP 5.4.35 on ZF 2.3.3
Update 1: Removing the access_token section returns an "Bad Authentication data" message. Enabling it again, will throw the atal error: Call to a member function connect() on a non-object in somepath/vendor/zendframework/zendframework/library/Zend/Http/Client.php on line 1358

Answer 1

Twitter allows only SSL connections in Twitter API endpoints. This detail is documented here. So, you need to set your adapter options to meet the SSL protocol requirements.
Try this:
'http_client_options' => array (
'adapter' => 'Zend\Http\Client\Adapter\Curl',
'curloptions' => array (
CURLOPT_SSL_VERIFYHOST => 2,
CURLOPT_SSL_VERIFYPEER => true,
CURLOPT_CAINFO => '/path/to/certs/ca-bundle.pem'
)
),
When verifying a remote host, you need to provide one or more certificates of trusted CAs. The value 2 for VERIFYHOST option is required to checking the existence of a common name and also verifies that it matches the hostname provided. Use 1 for only check existence of name in the SSL peer certificate.
You may also want to read more about configuring SSL connections using Curl adapter in this nice tutorial.