Example
Return an array of objects that represent the fields (columns) in a result set, then print each field's name, table, and max length:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname";
if ($result=mysqli_query($con,$sql))
{
// Get field
information for all fields
$fieldinfo=mysqli_fetch_fields($result);
foreach
($fieldinfo as $val)
{
printf("Name: %s\n",$val->name);
printf("Table:
%s\n",$val->table);
printf("max. Len:
%d\n",$val->max_length);
}
// Free result
set
mysqli_free_result($result);
}
mysqli_close($con);
?>
Definition and Usage
The mysqli_fetch_fields() function returns an array of objects that represent the fields (columns) in a result set.
Syntax
mysqli_fetch_fields(result);
| Parameter | Description |
|---|---|
| result | Required. Specifies a result set identifier returned by mysqli_query() , mysqli_store_result() or mysqli_use_result() |
Technical Details
| Return Value: | Returns an array of objects containing field definition information.
FALSE if no info is available. The objects have the following properties:
|
|---|---|
| PHP Version: | 5+ |
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