openssl_pkcs7_sign

openssl_pkcs7_sign

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

openssl_pkcs7_signSign an S/MIME message

Description

bool openssl_pkcs7_sign ( string $infilename , string $outfilename , mixed $signcert , mixed $privkey , array $headers [, int $flags = PKCS7_DETACHED [, string $extracerts ]] )

openssl_pkcs7_sign() takes the contents of the file named infilename and signs them using the certificate and its matching private key specified by signcert and privkey parameters.