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] => 641
            [request_size] => 528
            [filetime] => -1
            [ssl_verify_result] => 20
            [redirect_count] => 0
            [total_time] => 0.464655
            [namelookup_time] => 0.010986
            [connect_time] => 0.15593
            [pretransfer_time] => 0.30536
            [size_upload] => 0
            [size_download] => 5569
            [speed_download] => 11985
            [speed_upload] => 0
            [download_content_length] => 5569
            [upload_content_length] => 0
            [starttransfer_time] => 0.464433
            [redirect_time] => 0
            [certinfo] => Array
                (
                )

            [primary_ip] => 144.2.14.24
            [primary_port] => 443
            [local_ip] => 5.77.60.82
            [local_port] => 47040
            [redirect_url] => 
        )

    [oauth] => Array
        (
            [header] => Authorization: OAuth realm="https%3A%2F%2Fapi.linkedin.com",oauth_version="1.0",oauth_nonce="8f49088e3537be0868c24150b9009b87",oauth_timestamp="1679892057",oauth_consumer_key="75vkhefbei501g",oauth_callback="https%3A%2F%2Ftouristalk.com%3A443%2Fcrm%2Findex.php%2Flogin_bysocial%2Flink%2F%3FlType%3Dinitiate%26lResponse%3D1",oauth_signature_method="HMAC-SHA1",oauth_signature="1KERqQ2JTVpES1tB9KPa5kjMx9s%3D"
            [string] => POST&https%3A%2F%2Fapi.linkedin.com%2Fuas%2Foauth%2FrequestToken&oauth_callback%3Dhttps%253A%252F%252Ftouristalk.com%253A443%252Fcrm%252Findex.php%252Flogin_bysocial%252Flink%252F%253FlType%253Dinitiate%2526lResponse%253D1%26oauth_consumer_key%3D75vkhefbei501g%26oauth_nonce%3D8f49088e3537be0868c24150b9009b87%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1679892057%26oauth_version%3D1.0
        )

    [error] => OAuth callback URL was not confirmed by the LinkedIn end-point
    [success] => 
)


LINKEDIN OBJ:

LinkedIn Object
(
    [callback:protected] => https://touristalk.com:443/crm/index.php/login_bysocial/link/?lType=initiate&lResponse=1
    [token:protected] => 
    [application_key:protected] => 75vkhefbei501g
    [application_secret:protected] => 9t1RkkmHh98Z73at
    [response_format:protected] => xml
    [last_request_headers] => Array
        (
            [0] => Authorization: OAuth realm="https%3A%2F%2Fapi.linkedin.com",oauth_version="1.0",oauth_nonce="8f49088e3537be0868c24150b9009b87",oauth_timestamp="1679892057",oauth_consumer_key="75vkhefbei501g",oauth_callback="https%3A%2F%2Ftouristalk.com%3A443%2Fcrm%2Findex.php%2Flogin_bysocial%2Flink%2F%3FlType%3Dinitiate%26lResponse%3D1",oauth_signature_method="HMAC-SHA1",oauth_signature="1KERqQ2JTVpES1tB9KPa5kjMx9s%3D"
            [1] => Content-Type: text/plain; charset=UTF-8
        )

    [last_request_url] => https://api.linkedin.com/uas/oauth/requestToken
)