MAXDB_FETCH_FIELD_DIRECT(3) 1 MAXDB_FETCH_FIELD_DIRECT(3)
maxdb_fetch_field_direct - Fetch meta-data for a single field
Procedural style
SYNOPSIS
mixed maxdb_fetch_field_direct (resource $result, int $fieldnr)
DESCRIPTION
Object oriented style
mixed maxdb_result::fetch_field_direct (int $fieldnr)
maxdb_fetch_field_direct(3) returns an resource which contains field definition information from specified resultset. The value of fieldnr
must be in the range from 0 to number of fields - 1.
RETURN VALUES
Returns an resource 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 |
| | |
|max_length | |
| | |
| | The maximum width of the field for the result |
| | set. |
| | |
| type | |
| | |
| | The data type used for this field |
| | |
| decimals | |
| | |
| | The number of decimals used (for integer fields) |
| | |
+-----------+---------------------------------------------------+
EXAMPLES
Example #1
Object oriented style
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s
", maxdb_connect_error());
exit();
}
$query = "SELECT name, cno from hotel.customer ORDER BY name";
if ($result = $maxdb->query($query)) {
/* Get field information for column 'SurfaceArea' */
$finfo = $result->fetch_field_direct(1);
printf("Name: %s
", $finfo->name);
printf("Table: %s
", $finfo->table);
printf("max. Len: %d
", $finfo->max_length);
printf("Flags: %d
", $finfo->flags);
printf("Type: %d
", $finfo->type);
$result->close();
}
/* close connection */
$maxdb->close();
?>
Example #2
Procedural style
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s
", maxdb_connect_error());
exit();
}
$query = "SELECT name, cno from hotel.customer ORDER BY name";
if ($result = maxdb_query($link, $query)) {
/* Get field information for column 'cno' */
$finfo = maxdb_fetch_field_direct($result, 1);
printf("Name: %s
", $finfo->name);
printf("Table: %s
", $finfo->table);
printf("max. Len: %d
", $finfo->max_length);
printf("Flags: %d
", $finfo->flags);
printf("Type: %d
", $finfo->type);
maxdb_free_result($result);
}
/* close connection */
maxdb_close($link);
?>
The above example will output something similar to:
Name: CNO
Table:
max. Len: 4
Flags: -1
Type: 0
SEE ALSO
maxdb_num_fields(3), maxdb_fetch_field(3), maxdb_fetch_fields(3).
PHP Documentation Group MAXDB_FETCH_FIELD_DIRECT(3)