Oracle 5.0, Справочное руководство

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Original MySQL API (
Mysql
)
2277
Assign the value of
NULL
to the PDO object, or
PDOStatement::closeCursor
Description
bool mysql_free_result(
resource result);
mysql_free_result
will free all memory associated with the result identifier
result
.
mysql_free_result
only needs to be called if you are concerned about how much memory is being
used for queries that return large result sets. All associated result memory is automatically freed at the
end of the script's execution.
Parameters
result
The result resource that is being evaluated. This result comes from
a call to
mysql_query
.
Return Values
Returns
TRUE
on success or
FALSE
on failure.
If a non-resource is used for the
result
, an error of level E_WARNING will be emitted. It's worth
noting that
mysql_query
only returns a resource for SELECT, SHOW, EXPLAIN, and DESCRIBE
queries.
Examples
Example 20.53. A
mysql_free_result
example
<?php
$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
if (!$result) {
echo 'Could not run query: ' . mysql_error();
exit;
}
/* Use the result, assuming we're done with it afterwards */
$row = mysql_fetch_assoc($result);
/* Now we free up the result and continue on with our script */
mysql_free_result($result);
echo $row['id'];
echo $row['email'];
?>
Notes
Note
For backward compatibility, the following deprecated alias may be used:
mysql_freeresult
See Also
mysql_query
is_resource
20.7.2.5.26.
mysql_get_client_info
Copyright 1997-2012 the PHP Documentation Group. [2230]