pg_get_notify
Gets SQL NOTIFY message
&reftitle.description;
arraypg_get_notify
resourceconnection
intresult_type
pg_get_notify gets notifications generated by a
NOTIFY SQL command. To receive notifications,
the LISTEN SQL command must be
issued.
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connection
PostgreSQL database connection resource.
result_type
An optional parameter that controls
how the returned array is indexed.
result_type is a constant and can take the
following values: PGSQL_ASSOC,
PGSQL_NUM and PGSQL_BOTH.
Using PGSQL_NUM, pg_get_notify
will return an array with numerical indices, using
PGSQL_ASSOC it will return only associative indices
while PGSQL_BOTH, the default, will return both
numerical and associative indices.
&reftitle.returnvalues;
An array containing the NOTIFY message name and backend PID.
Otherwise if no NOTIFY is waiting, then &false; is returned.
&reftitle.examples;
PostgreSQL NOTIFY message
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pg_get_pid