(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_fetch_result — Returns values from a result instance
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().
resultAn PgSql\Result instance, returned by pg_query(), pg_query_params() or pg_execute()(among others).
rowRow number in result to fetch. Rows are numbered from 0 upwards. If omitted, next row is fetched.
fieldA 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.
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.
| 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.
|
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