mysql_field_name to the new mysqli

Question

I have a way to get the name of the columns of a table. It works fine but now I want to update to the new mysqli ? (I tried the mysqli_fetch_field but I don\'t know how to a

Answer 1

I'm not sure if there is a better way to do that, but I checked that this works to get just the name of the columns and is the new mysqli :

$result = mysqli_query($con, 'SELECT * FROM myTable');
while ($property = mysqli_fetch_field($result)) {
    echo $property->name;
}

Answer 2

This is another easy way to print each field's name, table, and max length

$sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname";

if ($result=mysqli_query($con,$sql))
{
   // Get field information for all fields
   while ($fieldinfo=mysqli_fetch_field($result))
   {
      printf("Name: %s\n",$fieldinfo->name);
      printf("Table: %s\n",$fieldinfo->table);
      printf("max. Len: %d\n",$fieldinfo->max_length);
   }
   // Free result set
   mysqli_free_result($result);
}

Answer 3

You can replace the function mysql_field_name to mysqli_fetch_field_directand use it like the following:

$colObj = mysqli_fetch_field_direct($result,$i);                            
$col = $colObj->name;
echo "<br/>Coluna: ".$col;

Answer 4

$sql = "SELECT * from myTable";
$res = mysqli_query($con,$sql);
$row = mysqli_fetch_assoc($res);
$fields = array_keys($row);
var_dump($fields);

Answer 5

This is the way to implement this missing function:

function mysqli_field_name($result, $field_offset)
{
    $properties = mysqli_fetch_field_direct($result, $field_offset);
    return is_object($properties) ? $properties->name : null;
}