International PHP Conference 2015

pg_field_table

(PHP 5 >= 5.2.0)

pg_field_tableReturns the name or oid of the tables field

Descripción

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.

Parámetros

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.

Valores devueltos

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

Ejemplos

Ejemplo #1 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($res0);
echo 
pg_field_table($res0true);

$res pg_query($dbconn"SELECT version()");
var_dump(pg_field_table($res0));
?>

El resultado del ejemplo sería algo similar a:

foo
14379580

bool(false)

Notas

Nota:

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

Ver también

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