php 한글 메뉴얼 도움말 검색 사이트 Free result memory [function.pg-free-result]

설명

bool pg_free_result ( resource $result )

pg_free_result() frees the memory and data associated with the specified PostgreSQL query result resource.

This function need only be called if memory consumption during script execution is a problem. Otherwise, all result memory will be automatically freed when the script ends.

Note:
This function used to be called pg_freeresult().

인수

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

반환값

성공 시 TRUE를, 실패 시 FALSE를 반환합니다.

예제

Example #1 pg_free_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";

pg_free_result($res);
?>

위 예제의 출력:

First field in the second row is: 2

참고

pg_query() - Execute a query
pg_query_params() - Submits a command to the server and waits for the result, with the ability to pass parameters separately from the SQL command text.
pg_execute() - Sends a request to execute a prepared statement with given parameters, and waits for the result.