pg_field_table

(PHP 5 >= 5.2.0)

pg_field_table — Returns the name or oid of the tables field

Popis

mixed pg_field_table ( resource $result, int $field_number, bool $oid_only )

pg_field_table() returns the name of the table that field belongs to, or the table's oid if oid_only is TRUE.

Seznam parametrů

result: PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
field_number: Field number, starting from 0.
oid_only: By default the tables name that field belongs to is returned but if oid_only is set to TRUE, then the oid will instead be returned.

Návratové hodnoty

On success either the fields table name or oid. Or, FALSE on failure.

Příklady

Příklad 1620. Getting table information about a field


<?php

$dbconn = pg_connect("dbname=publisher") or die("Could not connect");



$res = pg_query($dbconn, "SELECT bar FROM foo");



echo pg_field_table($res, 0);

echo pg_field_table($res, 0, true);



$res = pg_query($dbconn, "SELECT version()");

var_dump(pg_field_table($res, 0));

?>

Výše uvedený příklad vypíše něco jako:


foo
14379580

bool(false)

Poznámky

Poznámka: Returning the oid is much faster than returning the table name because fetching the table name requires a query to the database system table.

Viz také

pg_field_name()

pg_field_type()

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pg_field_type_oid

pg_field_size

Last updated: Sat, 24 Mar 2007