php man page for cubrid_field_flags

CUBRID_FIELD_FLAGS(3)							 1						     CUBRID_FIELD_FLAGS(3)

cubrid_field_flags - Return a string with the flags of the given field offset

SYNOPSIS
       string cubrid_field_flags (resource  $result, int  $field_offset)

DESCRIPTION
	This  function	returns  a  string  with  the  flags  of the given field offset separated by space. You can split the returned value using
       explode. The possible flags could be: not_null, primary_key, unique_key, foreign_key, auto_increment, shared, reverse_index, reverse_unique
       and timestamp.

PARAMETERS
	      o $result
		-$result comes from a call to cubrid_execute(3)

	      o $field_offset
		-  The numerical field offset. The $field_offset starts at 0. If $field_offset does not exist, an error of level E_WARNING is also
		issued.

RETURN VALUES
	A string with flags, when process is successful.

       FALSE when invalid field_offset value.

	-1 if SQL sentence is not SELECT.

EXAMPLES
       Example #1

	      cubrid_field_flags(3) example

	      <?php
	      $conn = cubrid_connect("localhost", 33000, "demodb");
	      $result = cubrid_execute($conn, "SELECT * FROM game WHERE host_year=2004 AND nation_code='AUS' AND medal='G'");

	      $col_num = cubrid_num_cols($result);

	      printf("%-30s %s
", "Field Name", "Field Flags");
	      for($i = 0; $i < $col_num; $i++) {
		  printf("%-30s %s
", cubrid_field_name($result, $i), cubrid_field_flags($result, $i));
	      }

	      cubrid_disconnect($conn);
	      ?>

	      The above example will output:

	      Field Name		     Field Flags
	      host_year 		     not_null primary_key unique_key
	      event_code		     not_null primary_key unique_key foreign_key
	      athlete_code		     not_null primary_key unique_key foreign_key
	      stadium_code		     not_null
	      nation_code
	      medal
	      game_date

PHP Documentation Group 												     CUBRID_FIELD_FLAGS(3)