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maxdb_fetch_field_direct

Fetch meta-data for a single field (PECL maxdb:1.0-7.6.00.38)
mixed maxdb_fetch_field_direct ( resource result, int fieldnr )

Procedural style:

Object oriented style (method):

result {
  mixed fetch_field_direct(int fieldnr);
}

maxdb_fetch_field_direct() returns an resource 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 resource which contains field definition informations or FALSE if no field information for specified fieldnr is available.

Table 162. Object attributes

AttributeDescription
nameThe name of the column
max_lengthThe maximum width of the field for the result set.
typeThe data type used for this field
decimalsThe number of decimals used (for integer fields)


Examples

Example 1192. 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();
?>


Example 1193. 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);
?>


The above examples would produce the following output:

Name:     CNO
Table:
max. Len: 4
Flags:    -1
Type:     0