Example 1. Retrieving the number of fields in a result set
     The following example demonstrates how to retrieve the number of fields
     returned in a result set.
    
<?php
  $sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed"; $stmt = db2_prepare($conn, $sql); db2_execute($stmt, $sql); $columns = db2_num_fields($stmt);
  echo "There are {$columns} columns in the result set."; ?>
 | 
The above example will output:
There are 4 columns in the result set.  |