How to use php mysqli_free_result function

php The mysqli_free_result function is used to release the result memory. Its syntax is mysqli_free_result(result). The parameter result is required and there is no return value.

php How to use the mysqli_free_result function?

Definition and usage

mysqli_free_result() function releases the result memory.

Syntax

mysqli_free_result(result);

Parameters

result Required. Specifies the result set identifier returned by mysqli_query(), mysqli_store_result(), or mysqli_use_result().

Return value: No return value.

PHP version: 5

Get rows from the result set and then release the result memory:

<?php 
// 假定数据库用户名：root，密码：123456，数据库：RUNOOB 
$con=mysqli_connect("localhost","root","123456","RUNOOB"); 
if (mysqli_connect_errno($con)) 
{ 
    echo "连接 MySQL 失败: " . mysqli_connect_error(); 
} 
 
$sql="SELECT name,url FROM websites ORDER BY alexa";
 
if ($result=mysqli_query($con,$sql))
{
    // 一行行获取
    while ($row=mysqli_fetch_row($result))
    {
        printf ("%s : %s",$row[0],$row[1]);
        echo "<br>";
    }
    // 释放结果集
    mysqli_free_result($result);
}
 
mysqli_close($con);
?>

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