mysqli_fetch_field_direct
result->fetch_field_direct
Fetch meta-data for a single field
Description
Procedural style:
objectmysqli_fetch_field_direct
mysqli_resultresult
intfieldnr
Object oriented style (method):
mysqli_result
objectfetch_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.
&reftitle.returnvalues;
Returns an object which contains field definition information 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.
length
The width of the field, as specified in the tabl definition.
charsetnr
The character set number for the field.
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)
&reftitle.seealso;
mysqli_num_fields,
mysqli_fetch_field&listendand;
mysqli_fetch_fields.
&reftitle.examples;
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);
?>
]]>
&example.outputs;