pg_free_result

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

pg_free_result — Free result memory

Descripción

pg_free_result(PgSql\Result $result): bool

pg_free_result() frees the memory and data associated with the specified PgSql\Result instance.

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.

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

Parámetros

result: An PgSql\Result instance, returned by pg_query(), pg_query_params() or pg_execute()(among others).

Valores devueltos

Devuelve true en caso de éxito o false en caso de error.

Historial de cambios

Versión	Descripción
8.1.0	The `result` parameter expects an PgSql\Result instance now; previously, a recurso was expected.

Ejemplos

Ejemplo #1 pg_free_result() example

<?php
$db = pg_connect("dbname=users user=me");

$res = pg_query($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);
?>

El resultado del ejemplo sería:

First field in the second row is: 2

Ver también

pg_query() - Ejecutar una consulta
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() - Envía una solicitud para ejecutar una setencia preparada con parámetros dados, y espera el resultado
pg_result_memory_size() - Returns the amount of memory allocated for a query result

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User Contributed Notes 1 note

down

Stefan W ¶

11 years ago

You do NOT need to call pg_free_result() on every result resource you create.
When result resources go out of scope, they are garbage collected just like everything else.
Unless you're hoarding your results somewhere, you can basically ignore this function.

Here's a little test you can run to confirm this: http://pastebin.com/ghw1PHuE

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