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Website Programming in PHP / MYSQL
mysql_free_result
(PHP 4, PHP 5, PECL mysql:1.0)
mysql_free_result — Free result memory
Description
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 #1 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()
