(PHP 5, PHP 7)
Reads and parses a MIB file into the active MIB tree
bool snmp_read_mib ( string $filename )
This function is used to load additional, e.g. vendor specific, MIBs so that human readable OIDs like VENDOR-MIB::foo.1 instead of error prone numeric OIDs can be used.
The order in which the MIBs are loaded does matter as the underlying Net-SNMP libary will print warnings if referenced objects cannot be resolved.