PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8
openssl_x509_parse - Parse an X509 certificate and return the information as an array

openssl_x509_parse( OpenSSLCertificate|string$certificate, [bool$short_names = true] ): array|false

openssl_x509_parse returns information about the supplied certificate, including fields such as subject name, issuer name, purposes, valid from and valid to dates etc.



X509 certificate. See Key/Certificate parameters for a list of valid values.


short_names controls how the data is indexed in the array - if short_names 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.

Return Values

The structure of the returned data is (deliberately) not yet documented, as it is still subject to change.


Version Description
8.0.0 certificate accepts an OpenSSLCertificate instance now; previously, a resource of type OpenSSL X.509 was accepted.

Function openssl_x509_parse:

  • Manual

OpenSSL Functions

Most used PHP functions