openssl_pkcs12_export_to_file
Supported Versions: PHP 5 >= 5.2.2, PHP 7, PHP 8
Exports a PKCS#12 Compatible Certificate Store File
openssl_pkcs12_export_to_file( OpenSSLCertificate|string $certificate, string $output_filename, OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $private_key, string $passphrase, array $options = []): bool