Load a list of PKCS7 structures in the specified format into memory, and return a structure reference that refers to the structure(s) in internal storage.
Syntax
pkcs7_load_mem( cert, format, pkcs7 var )
Returns 1 on success, 0 on failure
cert = Text of a list of pkcs7 structures
format = Format of the structure(s) passed in. Valid values are "der", "pem", or "pkcs12", with "der" used if the format is missing or any other values are passed
pkcs7 = Structure array reference. On success, this will be neither zero nor null