Curl error troubleshooting

Curl error troubleshooting
Php curl Common Errors: SSL errors, bool (false)

Symptom: An error occurred while calling https in php curl.

Troubleshooting method: Use curl in the command line to call it.

Cause: the SSL certificate cannot be verified in the server room.

Solution: Skip the SSL certificate check.

Curl_setopt ($ ch, CURLOPT_SSL_VERIFYPEER, false );

 

Symptom: php curl calls curl_exec and returns bool (false). The command line curl call is normal.

Troubleshooting:

Var_dump (curl_error ($ ch ));

Check the returned values of the initialization and execution of the cURL function.curl_error()And setcurl_errno()In the event of a fault, further information is returned:

try {    $ch = curl_init();    if (FALSE === $ch)        throw new Exception('failed to initialize');    curl_setopt($ch, CURLOPT_URL, 'http://example.com/');    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);    curl_setopt(/* ... */);    $content = curl_exec($ch);    if (FALSE === $content)        throw new Exception(curl_error($ch), curl_errno($ch));    // ...process $content now} catch(Exception $e) {    trigger_error(sprintf(        'Curl failed with error #%d: %s',        $e->getCode(), $e->getMessage()),        E_USER_ERROR);}