(PHP 4 >= 4.2.0, PHP 5)

pg_free_resultFree result memory


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.


This function used to be called pg_freeresult().



PostgreSQL query result resource, 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.


Ejemplo #1 pg_free_result() example

pg_connect("dbname=users user=me") || die();

$res pg_query($db"SELECT 1 UNION ALL SELECT 2");

$val pg_fetch_result($res10);

"First field in the second row is: "$val"\n";


El resultado del ejemplo sería:

First field in the second row is: 2

Ver también

  • 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() - Envía una solicitud para ejecutar una setencia preparada con parámetros dados, y espera el resultado

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User Contributed Notes 1 note

Stefan W
2 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:
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