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PHP mysqli_data_seek () function

PHP MySQLi Reference Manual PHP MySQLi Reference Manual

In the result set of data to find the row number 3: 

// 假定数据库用户名：root，密码：123456，数据库：w3big 
$con=mysqli_connect("localhost","root","123456","w3big"); 
if (mysqli_connect_errno($con)) 
{ 
    echo "连接 MySQL 失败: " . mysqli_connect_error(); 
} 

$sql="SELECT name,url FROM websites ORDER BY alexa";

if ($result=mysqli_query($con,$sql))
{
	//查找行号为 3 的数据
	mysqli_data_seek($result,2);
	
	// 读取数据
	$row=mysqli_fetch_row($result);
	
	printf ("name: %s url: %sn", $row[0], $row[1]);
	
	// 释放结果集
	mysqli_free_result($result);
}

mysqli_close($con);
?>

Definition and Usage

mysqli_data_seek () function to adjust the result pointer to an arbitrary row in the result set.

grammar

mysqli_data_seek( result,offset ) ;

参数 描述
result 必需。规定由 mysqli_query()、mysqli_store_result() 或 mysqli_use_result() 返回的结果集标识符。
offset 必需。规定字段偏移。范围必须在 0 和 行总数 - 1 之间。

technical details

return value: If successful it returns TRUE, on failure returns FALSE.
PHP version: 5+

PHP MySQLi Reference Manual PHP MySQLi Reference Manual