multi certificate with curl ftp ssl

> Hello,
> 
> i want to convert this function curl (work) :
> 
> curl --ftp-ssl --capath /home/data/ --cert /home//data/certif.cer 
            --cacert  /home/data/societe.cer
>       -u username:password ftp://ftpmachin.societe.net:21
> 
> in php curl (v 7.18)
> 
> $ch = curl_init();
> curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
> curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
> curl_setopt($ch, CURLOPT_USE_SSL, CURLUSESSL_ALL );
> curl_setopt($ch, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_SSL );
>>
> curl_setopt($ch, CURLOPT_SSLCERT, $certificat_dir.'certif.cer' );
> curl_setopt($ch, CURLOPT_CAPATH,  $certificat_dir);
> curl_setopt($ch, CURLOPT_PORT, 21);
> curl_setopt($ch, CURLOPT_URL, 'ftp://ftpmachin.societe.net');
>>
> curl_setopt($ch, CURLOPT_USERPWD, "username:password");
> curl_setopt($ch, CURLOPT_FILE, $fp);
> curl_setopt($ch, CURLOPT_FTPASCII, false);
> $ret = curl_exec($ch);
> $info = curl_getinfo($ch);
> curl_close ($ch);
> 
> but my php code don't work, error 530 user login false.
> 
> i think the certificate are not be include correctly.
> 
> Do you have an idea to right code for include the two certificate .
> 
> thank you for help
> 
> Gemelos 
> 
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