Prompt warning:curl_setopt () When using PHP curl function [function.curl-setopt]: Curlo ... How to solve the mistake

If you run curlopt_followlocation in PHP and then get the PHP prompt error message:
warning:curl_setopt () [function.curl-setopt]: curlopt_followlocation cannot be activated when in Safe_mode or an open _basedir is set ...

The error mentions two key safe_mode and Open_basedir, if you are a virtual host without setting Appche permissions is not possible by modifying the server configuration to solve the problem, in general, the server configuration safe_mode are off, Then for some security to the user some restrictions, by setting Open_basedir to restrict the virtual host user's PHP execution folder, so when you use Curlopt_followlocation (php curl function, deep crawl data), Once the 301 turns and so on, the error message mentioned in the text will appear.

After checking the relevant information, quickly found a solution, http://www.php.cn/php-weizijiaocheng-362563.html, these methods are in the official PHP help.

The practice is to customize a function in a PHP function using the CURL statement without using curl_setopt ($ch, Curlopt_followlocation, True).

The code is as follows:

function Curl_redir_exec ($ch, $debug = "") {static $curl _loops = 0;static $curl _max_loops = 20;if ($curl _loops++ >= $curl _max_loops) {$curl _loops = 0;return FALSE;} curl_setopt ($ch, Curlopt_header, True); curl_setopt ($ch, Curlopt_returntransfer, true); $data = Curl_exec ($ch); $debbbb = $data; list ($header, $data) = explode ("\ n", $data, 2); $http _code = Curl_getinfo ($ch, Curlinfo_http_code); if ($http _ Code = = 301 | | $http _code = = 302) {$matches = array ();p reg_match ('/location: (. *?) \n/', $header, $matches); $url = @parse_url (Trim (Array_pop ($matches)));//print_r ($url); if (! $url) {//couldn ' t process The URL to redirect to$curl_loops = 0;return $data;} $last _url = Parse_url (Curl_getinfo ($ch, Curlinfo_effective_url));/* IF (! $url [' scheme ']) $url [' scheme '] = $last _url[' Scheme '];if (! $url [' host ']) $url [' host '] = $last _url[' host '];if (! $url [' path ']) $url [' path '] = $last _url[' path '];*/$ New_url = $url [' scheme ']. '://' . $url [' Host ']. $url [' Path ']. ($url [' query ']? '? '. $url [' query ']: curl_setopt ($ch, CURlopt_url, $new _url);//debug (' Redirecting to ', $new _url); return curl_redir_exec ($ch);} else {$curl _loops=0;return $debbbb;}}

After the function is defined, curl_setopt ($ch, Curlopt_followlocation, true) This statement is replaced with Curl_redir_exec ($ch).

After this, I think your php file should not prompt the error, about this code, in the provision of PHP official connection with can be found.

The official PHP code is as follows

/safe mode cannot curl function curl_redir_exec ($ch) {static $curl _loops = 0;          static $curl _max_loops = 20;              if ($curl _loops++ >= $curl _max_loops) {$curl _loops = 0;          return FALSE;          } curl_setopt ($ch, Curlopt_header, true);          curl_setopt ($ch, Curlopt_returntransfer, true);          $data = curl_exec ($ch);          List ($header, $data) = explode ("\ n", $data, 2);          $http _code = Curl_getinfo ($ch, Curlinfo_http_code);              if ($http _code = = 301 | | $http _code = = 302) {$matches = array (); Preg_match ('/location: (. *?)              \n/', $header, $matches);              $url = @parse_url (Trim (Array_pop ($matches)));                  if (! $url) {//couldn ' t process the URL to redirect to $curl _loops = 0;              return $data; } $last _url = Parse_url (Curl_getinfo ($ch, Curlinfo_effective_url));             if (! $url [' scheme ']) $url [' scheme '] = $last _url[' scheme ');              if (! $url [' host ']) $url [' host '] = $last _url[' host '];              if (! $url [' path ']) $url [' path '] = $last _url[' path ']; $new _url = $url [' scheme ']. '://' . $url [' Host ']. $url [' Path ']. ($url [' query ']? '? '.              $url [' query ']: ');              curl_setopt ($ch, Curlopt_url, $new _url);              Debug (' Redirecting to ', $new _url);          Return curl_redir_exec ($ch);              } else {$curl _loops=0;          return $data; }}//end