PostgreSQL Functions
PHP Manual

pg_fetch_result

Returns values from a result instance

Description

stringfalsenull pg_fetch_result(PgSql\Result $result, stringfalsenull $row, mixed $field)
stringfalsenull pg_fetch_result(PgSql\Result $result, mixed $field)

pg_fetch_result returns the value of a particular row and field (column) in an PgSql\Result instance.

Note:

This function used to be called pg_result.

Parameters

result

An PgSql\Result instance, 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.

Return Values

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.

Changelog

Version Description
8.3.0 row is now nullable.
8.1.0 The result parameter expects an PgSql\Result instance now; previously, a resource was expected.

Examples

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";
?>

The above example will output:

First field in the second row is: 2

See Also

  • pg_query
  • pg_fetch_array