pg_Fetch_Object
pg_Fetch_Row
PostgreSQL Functions
PHP Manual

# pg_fetch_result

(PHP 4 >= 4.2.0, PHP 5)

pg_fetch_result — Returns values from a result resource

### Descripción

string pg_fetch_result ( resource `$result` , int `$row` , mixed `$field` )
string pg_fetch_result ( resource `$result` , mixed `$field` )

pg_fetch_result() returns the value of a particular row and field (column) in a PostgreSQL result resource.

> Note: This function used to be called pg_result().

### Lista de parámetros

`result`

  PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).

`row`

  Row number in result to fetch. Rows are numbered from 0 upwards. If omitted, next row is fetched.

`field`

  A string representing the name of the field (column) to fetch, otherwise an int representing the field number to fetch. Fields are numbered from 0 upwards.

### Valores retornados

Boolean is returned as "t" or "f". All other types, including arrays are returned as strings formatted in the same default PostgreSQL manner that you would see in the psql program. Database NULL values are returned as `NULL`.

`FALSE` is returned if `row` exceeds the number of rows in the set, or on any other error.

### Ejemplos

Example #1 pg_fetch_result() example

`<?php
$db = pg_connect("dbname=users user=me") || die();
$res = pg_query($db, "SELECT 1 UNION ALL SELECT 2");
$val = pg_fetch_result($res, 1, 0);
echo "First field in the second row is: ", $val, "\n";
?>`

El resultado del ejemplo seria:

    First field in the second row is: 2

### Ver también

- pg_query() - Execute a query
- pg_fetch_array() - obtiene una fila en la forma de un array

pg_Fetch_Object
pg_Fetch_Row
PostgreSQL Functions
PHP Manual