The
sql_free() function is used to release an SQL resource opened using a call to the
sql_select() function. Ideally this function ought to be called after finishing using each resource.
It accept 3 parameters:
-#
$res is the resource for a selection,
-#
$serveur,
-#
$option.
The
sql_free() function is therefore used as shown below:
$res = sql_select('column', 'table');
// operations using the sql_fetch($res) and similar functions ...
// then close the resource
sql_free($res);
Note that the API functions call this function automatically. This is the case for:
-*
sql_fetsel (and
sql_getfetsel),
-*
sql_fetch_all (and
sql_allfetsel),
-*
sql_in_select.