mysqli_fetch_field
result->fetch_field
Returns the next field in the result set
Description
Procedural style:
objectmysqli_fetch_field
mysqli_resultresult
Object oriented style (method):
mysqli_result
objectfetch_field
The mysqli_fetch_field returns the definition of one column
of a result set as an object. Call this function repeatedly to retrieve
information about all columns in the result set.
mysqli_fetch_field returns &false; when no more fields
are left.
&reftitle.returnvalues;
Returns an object which contains field definition information or &false; if no field information
is available.
Object properties
Property
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)
&reftitle.seealso;
mysqli_num_fields,
mysqli_fetch_field_direct,
mysqli_fetch_fields&listendand;
mysqli_field_seek.
&reftitle.examples;
Object oriented style
query($query)) {
/* Get field information for all columns */
while ($finfo = $result->fetch_field()) {
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\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\n", $finfo->type);
}
mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>
]]>
&example.outputs;