openssl_pkcs7_encrypt Encrypt an S/MIME message &reftitle.description; boolopenssl_pkcs7_encrypt stringinfile stringoutfile mixedrecipcerts arrayheaders intflags0 intcipheridOPENSSL_CIPHER_RC2_40 openssl_pkcs7_encrypt takes the contents of the file named infile and encrypts them using an RC2 40-bit cipher so that they can only be read by the intended recipients specified by recipcerts. &reftitle.parameters; infile outfile recipcerts Either a lone X.509 certificate, or an array of X.509 certificates. headers headers is an array of headers that will be prepended to the data after it has been encrypted. headers can be either an associative array keyed by header name, or an indexed array, where each element contains a single header line. flags flags can be used to specify options that affect the encoding process - see PKCS7 constants. cipherid One of cipher constants. &reftitle.returnvalues; &return.success; &reftitle.examples; "nighthawk@example.com", // keyed syntax "From: HQ ", // indexed syntax "Subject" => "Eyes only"))) { // message encrypted - send it! exec(ini_get("sendmail_path") . " < enc.txt"); } ?> ]]>