db2_num_fields(3) php man page | unix.com

DB2_NUM_FIELDS(3)							 1							 DB2_NUM_FIELDS(3)

db2_num_fields - Returns the number of fields contained in a result set

SYNOPSIS
       int db2_num_fields (resource  $stmt)

DESCRIPTION
	Returns the number of fields contained in a result set. This is most useful for handling the result sets returned by dynamically generated
       queries, or for result sets returned by stored procedures, where your application cannot  otherwise  know  how  to  retrieve  and  use  the
       results.

PARAMETERS
	      o $stmt
		- A valid statement resource containing a result set.

RETURN VALUES
	Returns  an  integer  value  representing the number of fields in the result set associated with the specified statement resource. Returns
       FALSE if the statement resource is not a valid input value.

EXAMPLES
       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.

SEE ALSO
       db2_execute(3),	  db2_field_display_size(3),	db2_field_name(3),    db2_field_num(3),    db2_field_precision(3),     db2_field_scale(3),
       db2_field_type(3), db2_field_width(3).

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