Improved MySQL 4.1 support

libraries/mysql_charsets.lib.php3

@@ -0,0 +1,42 @@
+<?php
+/* $Id$ */
+// vim: expandtab sw=4 ts=4 sts=4:
+
+if (!defined('PMA_MYSQL_CHARSETS_LIB_INCLUDED')){
+    define('PMA_MYSQL_CHARSETS_LIB_INCLUDED', 1);
+
+    $res = PMA_mysql_query('SHOW VARIABLES LIKE "character_sets";', $userlink)
+        or PMA_mysqlDie(PMA_mysql_error($userlink), 'SHOW VARIABLES LIKE "character sets";');
+    $row = PMA_mysql_fetch_row($res);
+    @mysql_free_result($res);
+    unset($res);
+
+    $charsets_tmp = explode(' ', $row[1]);
+    unset($row);
+
+    $mysql_charsets = array();
+
+    for ($i = 0; isset($charsets_tmp[$i]); $i++) {
+        if (strpos(' ' . $charsets_tmp[$i], '_')) {
+            $current = substr($charsets_tmp[$i], 0, strpos($charsets_tmp[$i], '_'));
+        } else {
+            $current = $charsets_tmp[$i];
+        }
+        if (!in_array($current, $mysql_charsets)) {
+            $mysql_charsets[] = $current;
+        }
+    }
+
+    unset($charsets_tmp);
+    unset($i);
+    unset($current);
+    
+    if (PMA_PHP_INT_VERSION >= 40000) {
+        sort($mysql_charsets, SORT_STRING);
+    } else {
+        sort($mysql_charsets);
+    }
+
+} // $__PMA_MYSQL_CHARSETS_LIB__
+
+?>