Facebook uses curl to get user profiles

Use Facebook to get user information

$graph _url= "Https://graph.facebook.com/me?scope=email&fields=id,name,email,first_name,last_name,link, birthday,picture&access_token= $access _token "; $s = Curl_init (); curl_setopt ($s, curlopt_url, $url); curl_setopt ($ s,curlopt_returntransfer,1); curl_setopt ($s, curlopt_header, 0); $body = curl_exec ($s); curl_close ($s);

$body, always empty, but Var_dump (Curl_errno ($s)); no error number.

and directly to the $graph_url, put in the browser address bar, is able to obtain information

Went online to check the next, plus curl_setopt ($s, curlopt_ssl_verifypeer, 0);

CURLOPT_SSL_VERIFYHOSTThe value

• Set to 0 indicate that the certificate is not checked
• Set to 1 indicate whether a field is checked in the certificate CN(common name)
• Set to 2 represent the 1 basis of the colonel's inspection当前的域名是否与CN匹配

libcurlthe previous version of this variable is the boolean value, for the true time effect is set to 2 , and later out 调试需求 , increased 仅校验是否有CN字段 options, so two values are true/false not enough, upgrade to 0/1/2 three values.

Later (later libcurl_7.28.1 versions), this debug option is removed because of this, so it is 经常被开发者用错 not supported at this 1 time, there are only 0/2 two kinds of values.

　　

　　

Facebook uses curl to get user profiles