function data_integrity_check()
{
    require CONFIG . 'config.php';
    mysql_select_db($database, $brewing);
    // Match user emails against the record in the brewer table,
    // Compare user's id against uid,
    // If no match, replace uid with user's id
    $query_user_check = sprintf("SELECT id,user_name FROM %s", $prefix . "users");
    $user_check = mysql_query($query_user_check, $brewing) or die(mysql_error());
    $row_user_check = mysql_fetch_assoc($user_check);
    do {
        // Get Brewer Info
        $query_brewer = sprintf("SELECT id,uid,brewerEmail,brewerFirstName,brewerLastname FROM %s WHERE brewerEmail='%s'", $prefix . "brewer", $row_user_check['user_name']);
        $brewer = mysql_query($query_brewer, $brewing) or die(mysql_error());
        $row_brewer = mysql_fetch_assoc($brewer);
        $totalRows_brewer = mysql_num_rows($brewer);
        // Check to see if info is matching up. If not...
        if ($row_brewer['brewerEmail'] == $row_user_check['user_name'] && $row_brewer['uid'] != $row_user_check['id'] && $totalRows_brewer == 1) {
            // ...Update to the correct uid
            $updateSQL = sprintf("UPDATE %s SET uid='%s' WHERE id='%s'", $prefix . "brewer", $row_user_check['id'], $row_brewer['id']);
            $result = mysql_query($updateSQL, $brewing) or die(mysql_error());
            // Change all associated entries to the correct uid (brewBrewerID row) in the "brewing" table
            $query_brewer_entries = sprintf("SELECT id FROM %s WHERE brewBrewerLastName='%s' AND brewBrewerFirstName='%s'", $prefix . "brewing", $row_brewer['brewerLastName'], $row_brewer['brewerLastName']);
            $brewer_entries = mysql_query($query_brewer_entries, $brewing) or die(mysql_error());
            $row_brewer_entries = mysql_fetch_assoc($brewer_entries);
            $totalRows_brewer_entries = mysql_num_rows($brewer_entries);
            if ($totalRows_brewer_entries > 0) {
                do {
                    $updateSQL = sprintf("UPDATE %s SET brewBrewerID='%s' WHERE id='%s'", $prefix . "brewing", $row_brewer_entries['id'], $row_brewer['id']);
                    $result = mysql_query($updateSQL, $brewing) or die(mysql_error());
                } while ($row_brewer_entries = mysql_fetch_assoc($brewer_entries));
            }
        }
        // end if (($row_brewer['brewerEmail'] == $row_user_check['user_name']) && ($row_brewer['uid'] != $row_user_check['id']) && ($totalRows_brewer == 1))
        // Delete user record if no record of the user's extended information is found in the "brewer" table
        if ($totalRows_brewer == 0) {
            $deleteSQL = sprintf("DELETE FROM %s WHERE id='%s'", $prefix . "users", $row_user_check['id']);
            $result = mysql_query($deleteSQL, $brewing) or die(mysql_error());
            // Check to see if there are entries under that uid. If so, delete.
            $query_brewer_entries = sprintf("SELECT id FROM %s WHERE brewBrewerID='%s'", $prefix . "brewing", $row_user_check['id']);
            $brewer_entries = mysql_query($query_brewer_entries, $brewing) or die(mysql_error());
            $row_brewer_entries = mysql_fetch_assoc($brewer_entries);
            $totalRows_brewer_entries = mysql_num_rows($brewer_entries);
            if ($totalRows_brewer_entries > 0) {
                do {
                    $deleteSQL = sprintf("DELETE FROM %s WHERE id='%s'", $prefix . "brewing", $row_brewer_entries['id']);
                    $result = mysql_query($deleteSQL, $brewing) or die(mysql_error());
                } while ($row_brewer_entries = mysql_fetch_assoc($brewer_entries));
            }
        }
        // end if ($totalRows_brewer == 0)
    } while ($row_user_check = mysql_fetch_assoc($user_check));
    // Check if there are "blank" entries. If so, delete.
    $query_blank = sprintf("SELECT id FROM %s WHERE (brewStyle IS NULL OR brewStyle = '') AND (brewCategory IS NULL OR brewCategory = '') AND (brewCategorySort IS NULL OR brewCategorySort = '') AND (brewBrewerID IS NULL OR brewBrewerID = '')", $prefix . "brewing");
    $blank = mysql_query($query_blank, $brewing) or die(mysql_error());
    $row_blank = mysql_fetch_assoc($blank);
    $totalRows_blank = mysql_num_rows($blank);
    if ($totalRows_blank > 0) {
        do {
            $deleteSQL = sprintf("DELETE FROM %s WHERE id='%s'", $prefix . "brewing", $row_blank['id']);
            $result = mysql_query($deleteSQL, $brewing) or die(mysql_error());
        } while ($row_blank = mysql_fetch_assoc($blank));
    }
    // Check if there are "blanks" in the brewer table. If so, delete.
    $query_blank1 = sprintf("SELECT id FROM %s WHERE (brewerFirstName IS NULL OR brewerFirstName = '') AND (brewerLastName IS NULL OR brewerLastName = '')", $prefix . "brewer");
    $blank1 = mysql_query($query_blank1, $brewing) or die(mysql_error());
    $row_blank1 = mysql_fetch_assoc($blank1);
    $totalRows_blank1 = mysql_num_rows($blank1);
    if ($totalRows_blank1 > 0) {
        do {
            $deleteSQL = sprintf("DELETE FROM %s WHERE id='%s'", $prefix . "brewer", $row_blank1['id']);
            $result = mysql_query($deleteSQL, $brewing) or die(mysql_error());
        } while ($row_blank1 = mysql_fetch_assoc($blank1));
    }
    // Look for duplicate entries in the judging_scores table
    $query_judging_duplicates = sprintf("SELECT eid FROM %s", $prefix . "judging_scores");
    $judging_duplicates = mysql_query($query_judging_duplicates, $brewing) or die(mysql_error());
    $row_judging_duplicates = mysql_fetch_assoc($judging_duplicates);
    $totalRows_judging_duplicates = mysql_num_rows($judging_duplicates);
    if ($totalRows_judging_duplicates > 2) {
        do {
            $a[] = $row_judging_duplicates['eid'];
        } while ($row_judging_duplicates = mysql_fetch_assoc($judging_duplicates));
        foreach ($a as $eid) {
            $query_duplicates = sprintf("SELECT id FROM %s WHERE eid='%s'", $prefix . "judging_scores", $eid);
            $duplicates = mysql_query($query_duplicates, $brewing) or die(mysql_error());
            $row_duplicates = mysql_fetch_assoc($duplicates);
            $totalRows_duplicates = mysql_num_rows($duplicates);
            if ($totalRows_duplicates > 1) {
                for ($i = 1; $i < $totalRows_duplicates; $i++) {
                    $query_duplicate = sprintf("SELECT id FROM %s WHERE eid='%s'", $prefix . "judging_scores", $eid);
                    $duplicate = mysql_query($query_duplicate, $brewing) or die(mysql_error());
                    $row_duplicate = mysql_fetch_assoc($duplicate);
                    $deleteSQL = sprintf("DELETE FROM %s WHERE id='%s'", $prefix . "judging_scores", $row_duplicate['id']);
                    $result = mysql_query($deleteSQL, $brewing) or die(mysql_error());
                }
            }
        }
    }
    if ($_SESSION['prefsAutoPurge'] == 1) {
        // Next, purge all entries that are unconfirmed
        purge_entries("unconfirmed", 1);
        purge_entries("special", 1);
    }
    // Last update the "system" table with the date/time the function ended
    $updateSQL = sprintf("UPDATE %s SET data_check=%s WHERE id='1'", $prefix . "system", "NOW( )");
    $result = mysql_query($updateSQL, $brewing) or die(mysql_error());
}
<?php

require '../paths.php';
require INCLUDES . 'url_variables.inc.php';
require LIB . 'common.lib.php';
require INCLUDES . 'db_tables.inc.php';
require DB . 'common.db.php';
if (isset($_SESSION['loginUsername']) && $_SESSION['userLevel'] == "0") {
    // User initiated purging of data
    if ($action == "purge") {
        // Purge unconfirmed and/or entries that require special ingredients that do not have special ingredient data
        if ($go == "unconfirmed") {
            purge_entries("unconfirmed", 0);
            purge_entries("special", 0);
            header(sprintf("Location: %s", $base_url . "index.php?section=admin&go=entries&purge=true"));
        }
        // Purge entry and associated data
        if ($go == "entries" || $go == "purge-all") {
            // Purge all data from brewing table
            $updateSQL1 = sprintf("TRUNCATE %s", $brewing_db_table);
            mysql_real_escape_string($updateSQL1);
            $result1 = mysql_query($updateSQL1, $brewing) or die(mysql_error());
            // Purge all data from judging_scores table
            $updateSQL1 = sprintf("TRUNCATE %s", $judging_scores_db_table);
            mysql_real_escape_string($updateSQL1);
            $result1 = mysql_query($updateSQL1, $brewing) or die(mysql_error());
            // Purge all data from judging_scores bos table
            $updateSQL1 = sprintf("TRUNCATE %s", $judging_scores_bos_db_table);
            mysql_real_escape_string($updateSQL1);
            $result1 = mysql_query($updateSQL1, $brewing) or die(mysql_error());
            // Purge all data from special_best_data table