(PHP 3, PHP 4 >= 4.0.0)
pg_exec -- Execute a query
pg_exec() returns a query result resource if
query could be executed. It returns FALSE on failure or if
connection is not a valid connection. Details about the error can
be retrieved using the pg_errormessage()
function if connection is valid.
pg_errormessage() sends an SQL statement to
the PostgreSQL database specified by the
connection resource. The
connection must be a valid connection that
was returned by pg_connect() or
pg_pconnect(). The return value of this
function is an query result resource to be used to access the
results from other PostgreSQL functions such as
pg_fetch_array().
Note:
connection is a optional parameter for
pg_exec(). If
connection is not used, default
connection is used. Default connection is the last connection
made by pg_connect() or
pg_pconnect().
Although connection can be omitted, it
is not recommended, since it could be a cause of hard to find
bug in script.
See also pg_connect(), pg_pconnect(), pg_fetch_array(), pg_fetch_object(), pg_numrows(), and pg_cmdtuples().