PHP: Retrieving structural attributes of database table fields

You can use the `mysql_fetch_field()` function in PHP to retrieve the structural attributes of a field in a database table.

Example usage:

$con = mysql_connect("localhost","root","");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

mysql_select_db("my_db", $con);

$result = mysql_query("SELECT * FROM Persons");

while ($fieldinfo = mysql_fetch_field($result))
{
    echo $fieldinfo->name;
    echo $fieldinfo->max_length;
    echo $fieldinfo->type;
}

mysql_close($con);

This code can be retrieved. Persons The names, maximum lengths, and data types of all fields in the table.