maxdb_fetch_field

(PECL maxdb >= 1.0)

Returns the next field in the result set

mixed maxdb_fetch_field ( resource $result )

Procedural style

Object oriented style

mixed maxdb_result::fetch_field ( void )

The maxdb_fetch_field() returns the definition of one column of a result set as an resource. Call this function repeatedly to retrieve information about all columns in the result set. maxdb_fetch_field() returns FALSE when no more fields are left.

Returns:

Returns an resource which contains field definition information or FALSE if no field information is available.

**Object properties**
Property	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 cno";
 
if ($result = $maxdb->query($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 */
$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 cno";
 
if ($result = maxdb_query($link, $query)) {
 
   /* Get field information for all fields */
   while ($finfo = maxdb_fetch_field($result)) {
 
       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", $finfo->type);
   }
   maxdb_free_result($result);
}
 
/* close connection */
maxdb_close($link);
?>