Request token retrieval failed:

RESPONSE:

Array
(
    [linkedin] => Array
        (
            [


__400:_Content_Length_Required
__ "content-type" content="text/html; charset=UTF-8">
  






Content Length Required

Could not process this request because Content-Length was not specified. Please double-check the URL (address) you used, or contact us if you feel you have reached this page in error.

Click the [#8220;Back] => [#8221;_button_on_your_browser_or_ "//www.linkedin.com/home">go to the home page.


Are you looking for any of these LinkedIn features?

[nbsp;
] => ) [info] => Array ( [url] => https://api.linkedin.com/uas/oauth/requestToken [content_type] => text/html [http_code] => 411 [header_size] => 543 [request_size] => 488 [filetime] => -1 [ssl_verify_result] => 0 [redirect_count] => 0 [total_time] => 1.100451 [namelookup_time] => 0.253086 [connect_time] => 0.463559 [pretransfer_time] => 0.887967 [size_upload] => 0 [size_download] => 5569 [speed_download] => 5060 [speed_upload] => 0 [download_content_length] => 5569 [upload_content_length] => 0 [starttransfer_time] => 1.100422 [redirect_time] => 0 [redirect_url] => [primary_ip] => 108.174.11.84 [certinfo] => Array ( ) [primary_port] => 443 [local_ip] => 172.31.20.132 [local_port] => 58945 ) [oauth] => Array ( [header] => Authorization: OAuth realm="http%3A%2F%2Fapi.linkedin.com",oauth_version="1.0",oauth_nonce="6ac43bbd5e89b4e37fd7c7359b08f86e",oauth_timestamp="1632690289",oauth_consumer_key="75w6gxm37flysj",oauth_callback="http%3A%2F%2Fwww.cleantekmarket.com%2Fusers%2Flinkedin_login%3Fresponse%3D1",oauth_signature_method="HMAC-SHA1",oauth_signature="F0dSYbRa2x1wZC0O4ADhZYSuaZA%3D" [string] => POST&https%3A%2F%2Fapi.linkedin.com%2Fuas%2Foauth%2FrequestToken&oauth_callback%3Dhttp%253A%252F%252Fwww.cleantekmarket.com%252Fusers%252Flinkedin_login%253Fresponse%253D1%26oauth_consumer_key%3D75w6gxm37flysj%26oauth_nonce%3D6ac43bbd5e89b4e37fd7c7359b08f86e%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1632690289%26oauth_version%3D1.0 ) [error] => OAuth callback URL was not confirmed by the LinkedIn end-point [success] => )


LINKEDIN OBJ: