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this is the base for resolving the system identifier (systemid) of the external entity. currently this parameter will always be set to an empty string.
name of the notation of this entity (see xml_set_notation_decl_handler()).
if the array contains empty elements then this function will return false for these elements as well. to properly traverse an array which may contain empty elements see the each() function.
to properly traverse an array which may contain empty elements see the each() function.
be careful if you are retrieving results from a query that may return a record that contains only one field that has a value of 0 (or an empty string, or null).
be careful if you are retrieving results from a query that may return a record that contains only one field that has a value of 0 (or an empty string, or null).