openssl_csr_export_to_file Exports a CSR to a file &reftitle.description; boolopenssl_csr_export_to_file OpenSSLCertificateSigningRequeststringcsr stringoutput_filename boolno_text&true; openssl_csr_export_to_file takes the Certificate Signing Request represented by csr and saves it in PEM format into the file named by output_filename. &reftitle.parameters; &openssl.param.csr; output_filename Path to the output file. no_text ¬e.openssl.param-notext; &reftitle.returnvalues; &return.success; &reftitle.changelog; &Version; &Description; 8.0.0 csr accepts an OpenSSLCertificateSigningRequest instance now; previously, a &resource; of type OpenSSL X.509 CSR was accepted. &reftitle.examples; "example.com", ); $private_key = openssl_pkey_new(array( "private_key_bits" => 2048, "private_key_type" => OPENSSL_KEYTYPE_RSA, )); $csr = openssl_csr_new($subject, $private_key, array('digest_alg' => 'sha384') ); openssl_pkey_export_to_file($private_key, 'example-priv.key'); // Along with the subject, the CSR contains the public key corresponding to the private key openssl_csr_export_to_file($csr, 'example-csr.pem'); ?> ]]> &reftitle.seealso; openssl_csr_export openssl_csr_new openssl_csr_sign