openssl_x509_parse
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
openssl_x509_parse — Parse an X509 certificate and return the information as an array
Description
openssl_x509_parse ( mixed $x509cert [, bool $shortnames = true ] ) : array
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.
Parameters
-
x509cert -
X509 certificate. See Key/Certificate parameters for a list of valid values.
-
shortnames -
shortnamescontrols how the data is indexed in the array - ifshortnamesistrue(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.
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https://www.php.net/manual/en/function.openssl-x509-parse.php