Php/docs/function.dbx-sort
dbx_sort
(PHP 4 >= 4.0.6, PHP 5 < 5.1.0, PECL dbx >= 1.1.0)
dbx_sort — Sort a result from a dbx_query by a custom sort function
Description
dbx_sort
( object $result
, string $user_compare_function
) : bool
Sort a result from a dbx_query() call with a custom sort function.
Parameters
result- A result set returned by dbx_query().
user_compare_function- The user-defined comparison function. It must accept two arguments and return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 dbx_sort() example
<?phpfunction user_re_order($a, $b) { $rv = dbx_compare($a, $b, "parentid", DBX_CMP_DESC); if (!$rv) { $rv = dbx_compare($a, $b, "id", DBX_CMP_NUMBER); } return $rv;}$link = dbx_connect(DBX_ODBC, "", "db", "username", "password") or die("Could not connect");$result = dbx_query($link, "SELECT id, parentid, description FROM tbl ORDER BY id"); // data in $result is now ordered by iddbx_sort($result, "user_re_order"); // data in $result is now ordered by parentid (descending), then by iddbx_close($link);?>
Notes
Note:
It is always better to use
ORDER BYSQLclause instead of dbx_sort() if possible.
