mysqli_fetch_field_direct
result->fetch_field_direct
Fetch meta-data for a single field
Description
Procedural style:
mixedmysqli_fetch_field_direct
objectresult
intfieldnr
Object oriented style (method):
result
mixed
fetch_field_direct
intfieldnr
mysqli_fetch_field_direct returns an object which contains
field definition informations from specified resultset. The value of fieldnr must be in the
range from 0 to number of fields - 1.
Return values
Returns an object which contains field definition informations or &false; if no field information
for specified fieldnr is available.
Object attributes
Attribute
Description
name
The name of the column
orgname
Original column name if an alias was specified
table
The name of the table this field belongs to (if not calculated)
orgtable
Original table name if an alias was specified
def
The default value for this field, represented as a string
max_length
The maximum width of the field for the result set.
flags
An integer representing the bit-flags for the field.
type
The data type used for this field
decimals
The number of decimals used (for integer fields)
See also
mysqli_num_fields
mysqli_fetch_field
mysqli_fetch_fields
Example
Object oriented style
query($query)) {
/* Get field information for column 'SurfaceArea' */
$finfo = $result->fetch_field_direct(1);
printf("Name: %s\n", $finfo->name);
printf("Table: %s\n", $finfo->table);
printf("max. Len: %d\n", $finfo->max_length);
printf("Flags: %d\n", $finfo->flags);
printf("Type: %d\n", $finfo->type);
$result->close();
}
/* close connection */
$mysqli->close();
?>
]]>
Procedural style
name);
printf("Table: %s\n", $finfo->table);
printf("max. Len: %d\n", $finfo->max_length);
printf("Flags: %d\n", $finfo->flags);
printf("Type: %d\n", $finfo->type);
mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>
]]>
The above examples would produce the following output: