pg_fetch_object

(PHP 4, PHP 5, PHP 7)

pg_fetch_object — Fetch a row as an object

Descrierea

pg_fetch_object ( resource $result [, int $row [, int $result_type = PGSQL_ASSOC ]] ) : object
pg_fetch_object ( resource $result [, int $row [, string $class_name [, array $params ]]] ) : object

pg_fetch_object() returns an object with properties that correspond to the fetched row's field names. It can optionally instantiate an object of a specific class, and pass parameters to that class's constructor.

Notă: Această funcție stabilește câmpurile NULL la valoarea PHP NULL.

Speed-wise, the function is identical to pg_fetch_array(), and almost as fast as pg_fetch_row() (the difference is insignificant).

Parametri

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 or NULL, the next row is fetched.

result_type

Ignored and deprecated.

class_name

The name of the class to instantiate, set the properties of and return. If not specified, a stdClass object is returned.

params

An optional array of parameters to pass to the constructor for class_name objects.

Valorile întoarse

An object with one attribute for each field name in the result. Database NULL values are returned as NULL.

FALSE is returned if row exceeds the number of rows in the set, there are no more rows, or on any other error.

Exemple

Example #1 pg_fetch_object() example

<?php 

$database = "store";

$db_conn = pg_connect("host=localhost port=5432 dbname=$database");
if (!$db_conn) {
  echo "Failed connecting to postgres database $database\n";
  exit;
}

$qu = pg_query($db_conn, "SELECT * FROM books ORDER BY author");


while ($data = pg_fetch_object($qu)) {
  echo $data->author . " (";
  echo $data->year . "): ";
  echo $data->title . "<br />";
}

pg_free_result($qu);
pg_close($db_conn);

?>

A se vedea și