(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_free_result — Free result memory
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.
Зауваження:
This function used to be called pg_freeresult().
resultПримірник PgSql\Result, якого повертає одна з функцій pg_query(), pg_query_params() або pg_execute() (серед інших).
| Версія | Опис |
|---|---|
| 8.1.0 |
Тепер параметр result має бути примірником
PgSql\Result. Раніше очікувався resource.
|
Приклад #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);
?>Поданий вище приклад виведе:
First field in the second row is: 2
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