(PHP 5 >= 5.2.0, PHP 7)
Returns the name or oid of the tables field
mixed pg_field_table ( resource $result, int $field_number [, bool $oid_only = false ] )
pg_field_table() returns the name of the table that field belongs to, or the table's oid if oid_only is TRUE.
Parameters:
result
PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_ex