pg_fetch_object

Manuál PHP
Předcházející		Další

pg_fetch_object

(PHP 3 >= 3.0.1, PHP 4, PHP 5)

pg_fetch_object -- Fetch a row as an object

Popis

object pg_fetch_object ( resource result [, int row [, int result_type]] )

object pg_fetch_object ( resource result [, int row [, string class_name [, array params]]] )

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.

Poznámka: Tato funkce nastavuje pole s hodnotou NULL na hodnotu PHP NULL.

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

Poznámka: row became optional in PHP 4.1.0.

Poznámka: result_type default changed from PGSQL_BOTH to PGSQL_ASSOC from PHP 4.3.0, since the numeric index was illegal.

Poznámka: class_name and params were added in PHP 5.0. The old form with result_type still exists for backwards compatibility.

Seznam parametrů

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.
result_type: Ignored and deprecated. Defaults to PGSQL_ASSOC.
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.

Návratové hodnoty

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.

Příklady

Příklad 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);

?>

Viz také

pg_query()

pg_fetch_array()

pg_fetch_assoc()

pg_fetch_row()

pg_fetch_result()

Tools

Sonstiges

Předcházející	Domů	Další
pg_fetch_assoc	Nahoru