openssl_x509_parse Parse an X509 certificate and return the information as an array &reftitle.description; arrayopenssl_x509_parse mixedx509cert boolshortnamestrue openssl_x509_parse returns information about the supplied x509cert, including fields such as subject name, issuer name, purposes, valid from and valid to dates etc. &reftitle.parameters; x509cert shortnames shortnames controls how the data is indexed in the array - if shortnames is &true; (the default) then fields will be indexed with the short name form, otherwise, the long name form will be used - e.g.: CN is the shortname form of commonName. &reftitle.returnvalues; The structure of the returned data is (deliberately) not yet documented, as it is still subject to change.