dbx_comparePodrêcznik PHPPoprzedniNastêpnydbx_compare (PHP 4 >= 4.0.7RC1)dbx_compare -- Compare two rows for sorting purposesDescriptionint dbx_compare (array row_a, array row_b, string columnname_or_index [, int flags])Ostrze¿enieTa funkcja jest w stadium EKSPERYMENTALNYM. Oznacza to, ¿e zachowanie funkcji, jej nazwa, w zasadzie wszystko udokumentowane tutaj mo¿e zostaæ zmienione w przysz³ych wersjach PHP bez wcze¶niejszego uprzedzenia. U¿ywaj tej funkcji na w³asne ryzyko. Returns 0 if row_a[$columnname_or_index] is equal to row_b[$columnname_or_index], 1 if it is greater and -1 if it is smaller (or vice versa if the DBX_CMP_DESC flag is set). The flags can be set to specify comparison direction (whether sorting is ascending or descending) and comparison type (force string or numeric compare by converting the data). The constants for direction are DBX_CMP_ASC and DBX_CMP_DESC. The constants for comparison type are DBX_CMP_NATIVE (no conversion), DBX_CMP_TEXT and DBX_CMP_NUMBER. These constants can be OR-ed together. The default value for the flags parameter is DBX_CMP_ASC | DBX_CMP_NATIVE. Przyk³ad 1. dbx_compare() example<?php function user_re_order ($a, $b) { $rv = dbx_compare ($a, $b, "parentid", DBX_CMP_DESC); if (!$rv) { $rv = dbx_compare ($a, $b, "id"); return $rv; } } $link = dbx_connect ("odbc", "", "db", "username", "password") or die ("Could not connect"); $result = dbx_query ($link, "SELECT id, parentid, description FROM tbl ORDER BY id"); echo "resulting data is now ordered by id<br>"; dbx_sort ($result, "user_re_order"); echo "resulting data is now ordered by parentid (descending), then by id<br>"; dbx_close ($link); ?> See also dbx_sort(). PoprzedniSpis tre¶ciNastêpnydbx_sortPocz±tek rozdzia³uDB++ Functions