phpmyadmin/db_sql_autocomplete.php

<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Table/Column autocomplete in SQL editors
 *
 * @package PhpMyAdmin
 */

require_once 'libraries/common.inc.php';

$db = isset($_POST['db']) ? $_POST['db'] : $GLOBALS['db'];
$sql_autocomplete = array();

if ($db) {
    $tableNames = $GLOBALS['dbi']->getTables($db);
    foreach ($tableNames as $tableName) {
        $sql_autocomplete[$tableName] = $GLOBALS['dbi']->getColumns(
            $db, $tableName
        );
    }
}

$response = PMA_Response::getInstance();
$response->addJSON("tables", json_encode($sql_autocomplete));