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maxdb_fetch_field

Returns the next field in the result set (PECL maxdb:1.0-7.6.00.38)
mixed maxdb_fetch_field ( resource result )

Procedural style:

Object oriented style (method):

result {
  mixed fetch_field();
}

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.

Return Values

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

Table 163. Object properties

PropertyDescription
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 1194. 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();
?>


Example 1195. 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);
?>


The above examples would produce the following output:

Name:     NAME
Table:
max. Len: 10
Flags:    -1
Type:     2

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