ldap_compare Compare value of attribute found in entry specified with DN boolldap_compare resourcelink_identifier stringdn stringattribute stringvalue Returns &true; if value matches otherwise returns &false;. Returns -1 on error. ldap_compare is used to compare value of attribute to value of same attribute in LDAP directory entry specified with dn. The following example demonstrates how to check whether or not given password matches the one defined in DN specified entry. ]]> ldap_compare can NOT be used to compare BINARY values! This function was added in 4.0.2.