(PECL maxdb >= 1.0)
Fetch meta-data for a single field
mixed maxdb_fetch_field_direct ( resource $result, int $fieldnr )
Procedural style
Object oriented style
mixed maxdb_result::fetch_field_direct ( int
$fieldnr
)maxdb_fetch_field_direct() 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.
Returns:
Returns an resource which contains field definition information or FALSE
if no field information for specified fieldnr is available.
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:
Object oriented style
<?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s\n", 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\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 */ $maxdb->close(); ?>
Procedural style
<?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s\n", 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\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", $finfo->type); maxdb_free_result($result); } /* close connection */ maxdb_close($link); ?>
See also:
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