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lezi/memcache.php

Created July 17, 2013 11:25
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  1. @adunk adunk created this gist May 24, 2013.
    897 changes: 897 additions & 0 deletions memcache.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,897 @@
    <?php
    /*
    +----------------------------------------------------------------------+
    | PHP Version 5 |
    +----------------------------------------------------------------------+
    | Copyright (c) 1997-2004 The PHP Group |
    +----------------------------------------------------------------------+
    | This source file is subject to version 3.0 of the PHP license, |
    | that is bundled with this package in the file LICENSE, and is |
    | available through the world-wide-web at the following url: |
    | http://www.php.net/license/3_0.txt. |
    | If you did not receive a copy of the PHP license and are unable to |
    | obtain it through the world-wide-web, please send a note to |
    | [email protected] so we can mail you a copy immediately. |
    +----------------------------------------------------------------------+
    | Author: Harun Yayli <harunyayli at gmail.com> |
    +----------------------------------------------------------------------+
    */

    $VERSION='$Id: memcache.php 309747 2011-03-27 17:28:56Z hradtke $';

    define('ADMIN_USERNAME','username'); // Admin Username
    define('ADMIN_PASSWORD','password'); // Admin Password
    define('DATE_FORMAT','Y/m/d H:i:s');
    define('GRAPH_SIZE',200);
    define('MAX_ITEM_DUMP',50);

    $MEMCACHE_SERVERS[] = 'localhost:11211'; // add more as an array

    ////////// END OF DEFAULT CONFIG AREA /////////////////////////////////////////////////////////////

    ///////////////// Password protect ////////////////////////////////////////////////////////////////
    if (!isset($_SERVER['PHP_AUTH_USER']) || !isset($_SERVER['PHP_AUTH_PW']) ||
    $_SERVER['PHP_AUTH_USER'] != ADMIN_USERNAME ||$_SERVER['PHP_AUTH_PW'] != ADMIN_PASSWORD) {
    Header("WWW-Authenticate: Basic realm=\"Memcache Login\"");
    Header("HTTP/1.0 401 Unauthorized");

    echo <<<EOB
    <html><body>
    <h1>Rejected!</h1>
    <big>Wrong Username or Password!</big>
    </body></html>
    EOB;
    exit;
    }

    ///////////MEMCACHE FUNCTIONS /////////////////////////////////////////////////////////////////////

    function get_host_port_from_server($server){
    $values = explode(':', $server);
    if (($values[0] == 'unix') && (!is_numeric( $values[1]))) {
    return array($server, 0);
    }
    else {
    return $values;
    }
    }

    function sendMemcacheCommands($command){
    global $MEMCACHE_SERVERS;
    $result = array();

    foreach($MEMCACHE_SERVERS as $server){
    $strs = get_host_port_from_server($server);
    $host = $strs[0];
    $port = $strs[1];
    $result[$server] = sendMemcacheCommand($host,$port,$command);
    }
    return $result;
    }
    function sendMemcacheCommand($server,$port,$command){

    $s = @fsockopen($server,$port);
    if (!$s){
    die("Cant connect to:".$server.':'.$port);
    }

    fwrite($s, $command."\r\n");

    $buf='';
    while ((!feof($s))) {
    $buf .= fgets($s, 256);
    if (strpos($buf,"END\r\n")!==false){ // stat says end
    break;
    }
    if (strpos($buf,"DELETED\r\n")!==false || strpos($buf,"NOT_FOUND\r\n")!==false){ // delete says these
    break;
    }
    if (strpos($buf,"OK\r\n")!==false){ // flush_all says ok
    break;
    }
    }
    fclose($s);
    return parseMemcacheResults($buf);
    }
    function parseMemcacheResults($str){

    $res = array();
    $lines = explode("\r\n",$str);
    $cnt = count($lines);
    for($i=0; $i< $cnt; $i++){
    $line = $lines[$i];
    $l = explode(' ',$line,3);
    if (count($l)==3){
    $res[$l[0]][$l[1]]=$l[2];
    if ($l[0]=='VALUE'){ // next line is the value
    $res[$l[0]][$l[1]] = array();
    list ($flag,$size)=explode(' ',$l[2]);
    $res[$l[0]][$l[1]]['stat']=array('flag'=>$flag,'size'=>$size);
    $res[$l[0]][$l[1]]['value']=$lines[++$i];
    }
    }elseif($line=='DELETED' || $line=='NOT_FOUND' || $line=='OK'){
    return $line;
    }
    }
    return $res;

    }

    function dumpCacheSlab($server,$slabId,$limit){
    list($host,$port) = get_host_port_from_server($server);
    $resp = sendMemcacheCommand($host,$port,'stats cachedump '.$slabId.' '.$limit);

    return $resp;

    }

    function flushServer($server){
    list($host,$port) = get_host_port_from_server($server);
    $resp = sendMemcacheCommand($host,$port,'flush_all');
    return $resp;
    }
    function getCacheItems(){
    $items = sendMemcacheCommands('stats items');
    $serverItems = array();
    $totalItems = array();
    foreach ($items as $server=>$itemlist){
    $serverItems[$server] = array();
    $totalItems[$server]=0;
    if (!isset($itemlist['STAT'])){
    continue;
    }

    $iteminfo = $itemlist['STAT'];

    foreach($iteminfo as $keyinfo=>$value){
    if (preg_match('/items\:(\d+?)\:(.+?)$/',$keyinfo,$matches)){
    $serverItems[$server][$matches[1]][$matches[2]] = $value;
    if ($matches[2]=='number'){
    $totalItems[$server] +=$value;
    }
    }
    }
    }
    return array('items'=>$serverItems,'counts'=>$totalItems);
    }
    function getMemcacheStats($total=true){
    $resp = sendMemcacheCommands('stats');
    if ($total){
    $res = array();
    foreach($resp as $server=>$r){
    foreach($r['STAT'] as $key=>$row){
    if (!isset($res[$key])){
    $res[$key]=null;
    }
    switch ($key){
    case 'pid':
    $res['pid'][$server]=$row;
    break;
    case 'uptime':
    $res['uptime'][$server]=$row;
    break;
    case 'time':
    $res['time'][$server]=$row;
    break;
    case 'version':
    $res['version'][$server]=$row;
    break;
    case 'pointer_size':
    $res['pointer_size'][$server]=$row;
    break;
    case 'rusage_user':
    $res['rusage_user'][$server]=$row;
    break;
    case 'rusage_system':
    $res['rusage_system'][$server]=$row;
    break;
    case 'curr_items':
    $res['curr_items']+=$row;
    break;
    case 'total_items':
    $res['total_items']+=$row;
    break;
    case 'bytes':
    $res['bytes']+=$row;
    break;
    case 'curr_connections':
    $res['curr_connections']+=$row;
    break;
    case 'total_connections':
    $res['total_connections']+=$row;
    break;
    case 'connection_structures':
    $res['connection_structures']+=$row;
    break;
    case 'cmd_get':
    $res['cmd_get']+=$row;
    break;
    case 'cmd_set':
    $res['cmd_set']+=$row;
    break;
    case 'get_hits':
    $res['get_hits']+=$row;
    break;
    case 'get_misses':
    $res['get_misses']+=$row;
    break;
    case 'evictions':
    $res['evictions']+=$row;
    break;
    case 'bytes_read':
    $res['bytes_read']+=$row;
    break;
    case 'bytes_written':
    $res['bytes_written']+=$row;
    break;
    case 'limit_maxbytes':
    $res['limit_maxbytes']+=$row;
    break;
    case 'threads':
    $res['rusage_system'][$server]=$row;
    break;
    }
    }
    }
    return $res;
    }
    return $resp;
    }

    //////////////////////////////////////////////////////

    //
    // don't cache this page
    //
    header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1
    header("Cache-Control: post-check=0, pre-check=0", false);
    header("Pragma: no-cache"); // HTTP/1.0

    function duration($ts) {
    global $time;
    $years = (int)((($time - $ts)/(7*86400))/52.177457);
    $rem = (int)(($time-$ts)-($years * 52.177457 * 7 * 86400));
    $weeks = (int)(($rem)/(7*86400));
    $days = (int)(($rem)/86400) - $weeks*7;
    $hours = (int)(($rem)/3600) - $days*24 - $weeks*7*24;
    $mins = (int)(($rem)/60) - $hours*60 - $days*24*60 - $weeks*7*24*60;
    $str = '';
    if($years==1) $str .= "$years year, ";
    if($years>1) $str .= "$years years, ";
    if($weeks==1) $str .= "$weeks week, ";
    if($weeks>1) $str .= "$weeks weeks, ";
    if($days==1) $str .= "$days day,";
    if($days>1) $str .= "$days days,";
    if($hours == 1) $str .= " $hours hour and";
    if($hours>1) $str .= " $hours hours and";
    if($mins == 1) $str .= " 1 minute";
    else $str .= " $mins minutes";
    return $str;
    }

    // create graphics
    //
    function graphics_avail() {
    return extension_loaded('gd');
    }

    function bsize($s) {
    foreach (array('','K','M','G') as $i => $k) {
    if ($s < 1024) break;
    $s/=1024;
    }
    return sprintf("%5.1f %sBytes",$s,$k);
    }

    // create menu entry
    function menu_entry($ob,$title) {
    global $PHP_SELF;
    if ($ob==$_GET['op']){
    return "<li><a class=\"child_active\" href=\"$PHP_SELF&op=$ob\">$title</a></li>";
    }
    return "<li><a class=\"active\" href=\"$PHP_SELF&op=$ob\">$title</a></li>";
    }

    function getHeader(){
    $header = <<<EOB
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
    <head><title>MEMCACHE INFO</title>
    <style type="text/css"><!--
    body { background:white; font-size:100.01%; margin:0; padding:0; }
    body,p,td,th,input,submit { font-size:0.8em;font-family:arial,helvetica,sans-serif; }
    * html body {font-size:0.8em}
    * html p {font-size:0.8em}
    * html td {font-size:0.8em}
    * html th {font-size:0.8em}
    * html input {font-size:0.8em}
    * html submit {font-size:0.8em}
    td { vertical-align:top }
    a { color:black; font-weight:none; text-decoration:none; }
    a:hover { text-decoration:underline; }
    div.content { padding:1em 1em 1em 1em; position:absolute; width:97%; z-index:100; }
    h1.memcache { background:rgb(153,153,204); margin:0; padding:0.5em 1em 0.5em 1em; }
    * html h1.memcache { margin-bottom:-7px; }
    h1.memcache a:hover { text-decoration:none; color:rgb(90,90,90); }
    h1.memcache span.logo {
    background:rgb(119,123,180);
    color:black;
    border-right: solid black 1px;
    border-bottom: solid black 1px;
    font-style:italic;
    font-size:1em;
    padding-left:1.2em;
    padding-right:1.2em;
    text-align:right;
    display:block;
    width:130px;
    }
    h1.memcache span.logo span.name { color:white; font-size:0.7em; padding:0 0.8em 0 2em; }
    h1.memcache span.nameinfo { color:white; display:inline; font-size:0.4em; margin-left: 3em; }
    h1.memcache div.copy { color:black; font-size:0.4em; position:absolute; right:1em; }
    hr.memcache {
    background:white;
    border-bottom:solid rgb(102,102,153) 1px;
    border-style:none;
    border-top:solid rgb(102,102,153) 10px;
    height:12px;
    margin:0;
    margin-top:1px;
    padding:0;
    }
    ol,menu { margin:1em 0 0 0; padding:0.2em; margin-left:1em;}
    ol.menu li { display:inline; margin-right:0.7em; list-style:none; font-size:85%}
    ol.menu a {
    background:rgb(153,153,204);
    border:solid rgb(102,102,153) 2px;
    color:white;
    font-weight:bold;
    margin-right:0em;
    padding:0.1em 0.5em 0.1em 0.5em;
    text-decoration:none;
    margin-left: 5px;
    }
    ol.menu a.child_active {
    background:rgb(153,153,204);
    border:solid rgb(102,102,153) 2px;
    color:white;
    font-weight:bold;
    margin-right:0em;
    padding:0.1em 0.5em 0.1em 0.5em;
    text-decoration:none;
    border-left: solid black 5px;
    margin-left: 0px;
    }
    ol.menu span.active {
    background:rgb(153,153,204);
    border:solid rgb(102,102,153) 2px;
    color:black;
    font-weight:bold;
    margin-right:0em;
    padding:0.1em 0.5em 0.1em 0.5em;
    text-decoration:none;
    border-left: solid black 5px;
    }
    ol.menu span.inactive {
    background:rgb(193,193,244);
    border:solid rgb(182,182,233) 2px;
    color:white;
    font-weight:bold;
    margin-right:0em;
    padding:0.1em 0.5em 0.1em 0.5em;
    text-decoration:none;
    margin-left: 5px;
    }
    ol.menu a:hover {
    background:rgb(193,193,244);
    text-decoration:none;
    }
    div.info {
    background:rgb(204,204,204);
    border:solid rgb(204,204,204) 1px;
    margin-bottom:1em;
    }
    div.info h2 {
    background:rgb(204,204,204);
    color:black;
    font-size:1em;
    margin:0;
    padding:0.1em 1em 0.1em 1em;
    }
    div.info table {
    border:solid rgb(204,204,204) 1px;
    border-spacing:0;
    width:100%;
    }
    div.info table th {
    background:rgb(204,204,204);
    color:white;
    margin:0;
    padding:0.1em 1em 0.1em 1em;
    }
    div.info table th a.sortable { color:black; }
    div.info table tr.tr-0 { background:rgb(238,238,238); }
    div.info table tr.tr-1 { background:rgb(221,221,221); }
    div.info table td { padding:0.3em 1em 0.3em 1em; }
    div.info table td.td-0 { border-right:solid rgb(102,102,153) 1px; white-space:nowrap; }
    div.info table td.td-n { border-right:solid rgb(102,102,153) 1px; }
    div.info table td h3 {
    color:black;
    font-size:1.1em;
    margin-left:-0.3em;
    }
    .td-0 a , .td-n a, .tr-0 a , tr-1 a {
    text-decoration:underline;
    }
    div.graph { margin-bottom:1em }
    div.graph h2 { background:rgb(204,204,204);; color:black; font-size:1em; margin:0; padding:0.1em 1em 0.1em 1em; }
    div.graph table { border:solid rgb(204,204,204) 1px; color:black; font-weight:normal; width:100%; }
    div.graph table td.td-0 { background:rgb(238,238,238); }
    div.graph table td.td-1 { background:rgb(221,221,221); }
    div.graph table td { padding:0.2em 1em 0.4em 1em; }
    div.div1,div.div2 { margin-bottom:1em; width:35em; }
    div.div3 { position:absolute; left:40em; top:1em; width:580px; }
    //div.div3 { position:absolute; left:37em; top:1em; right:1em; }
    div.sorting { margin:1.5em 0em 1.5em 2em }
    .center { text-align:center }
    .aright { position:absolute;right:1em }
    .right { text-align:right }
    .ok { color:rgb(0,200,0); font-weight:bold}
    .failed { color:rgb(200,0,0); font-weight:bold}
    span.box {
    border: black solid 1px;
    border-right:solid black 2px;
    border-bottom:solid black 2px;
    padding:0 0.5em 0 0.5em;
    margin-right:1em;
    }
    span.green { background:#60F060; padding:0 0.5em 0 0.5em}
    span.red { background:#D06030; padding:0 0.5em 0 0.5em }
    div.authneeded {
    background:rgb(238,238,238);
    border:solid rgb(204,204,204) 1px;
    color:rgb(200,0,0);
    font-size:1.2em;
    font-weight:bold;
    padding:2em;
    text-align:center;
    }
    input {
    background:rgb(153,153,204);
    border:solid rgb(102,102,153) 2px;
    color:white;
    font-weight:bold;
    margin-right:1em;
    padding:0.1em 0.5em 0.1em 0.5em;
    }
    //-->
    </style>
    </head>
    <body>
    <div class="head">
    <h1 class="memcache">
    <span class="logo"><a href="http://pecl.php.net/package/memcache">memcache</a></span>
    <span class="nameinfo">memcache.php by <a href="http://livebookmark.net">Harun Yayli</a></span>
    </h1>
    <hr class="memcache">
    </div>
    <div class=content>
    EOB;

    return $header;
    }
    function getFooter(){
    global $VERSION;
    $footer = '</div><!-- Based on apc.php '.$VERSION.'--></body>
    </html>
    ';

    return $footer;

    }
    function getMenu(){
    global $PHP_SELF;
    echo "<ol class=menu>";
    if ($_GET['op']!=4){
    echo <<<EOB
    <li><a href="$PHP_SELF&op={$_GET['op']}">Refresh Data</a></li>
    EOB;
    }
    else {
    echo <<<EOB
    <li><a href="$PHP_SELF&op=2}">Back</a></li>
    EOB;
    }
    echo
    menu_entry(1,'View Host Stats'),
    menu_entry(2,'Variables');

    echo <<<EOB
    </ol>
    <br/>
    EOB;
    }

    // TODO, AUTH

    $_GET['op'] = !isset($_GET['op'])? '1':$_GET['op'];
    $PHP_SELF= isset($_SERVER['PHP_SELF']) ? htmlentities(strip_tags($_SERVER['PHP_SELF'],'')) : '';

    $PHP_SELF=$PHP_SELF.'?';
    $time = time();
    // sanitize _GET

    foreach($_GET as $key=>$g){
    $_GET[$key]=htmlentities($g);
    }


    // singleout
    // when singleout is set, it only gives details for that server.
    if (isset($_GET['singleout']) && $_GET['singleout']>=0 && $_GET['singleout'] <count($MEMCACHE_SERVERS)){
    $MEMCACHE_SERVERS = array($MEMCACHE_SERVERS[$_GET['singleout']]);
    }

    // display images
    if (isset($_GET['IMG'])){
    $memcacheStats = getMemcacheStats();
    $memcacheStatsSingle = getMemcacheStats(false);

    if (!graphics_avail()) {
    exit(0);
    }

    function fill_box($im, $x, $y, $w, $h, $color1, $color2,$text='',$placeindex='') {
    global $col_black;
    $x1=$x+$w-1;
    $y1=$y+$h-1;

    imagerectangle($im, $x, $y1, $x1+1, $y+1, $col_black);
    if($y1>$y) imagefilledrectangle($im, $x, $y, $x1, $y1, $color2);
    else imagefilledrectangle($im, $x, $y1, $x1, $y, $color2);
    imagerectangle($im, $x, $y1, $x1, $y, $color1);
    if ($text) {
    if ($placeindex>0) {

    if ($placeindex<16)
    {
    $px=5;
    $py=$placeindex*12+6;
    imagefilledrectangle($im, $px+90, $py+3, $px+90-4, $py-3, $color2);
    imageline($im,$x,$y+$h/2,$px+90,$py,$color2);
    imagestring($im,2,$px,$py-6,$text,$color1);

    } else {
    if ($placeindex<31) {
    $px=$x+40*2;
    $py=($placeindex-15)*12+6;
    } else {
    $px=$x+40*2+100*intval(($placeindex-15)/15);
    $py=($placeindex%15)*12+6;
    }
    imagefilledrectangle($im, $px, $py+3, $px-4, $py-3, $color2);
    imageline($im,$x+$w,$y+$h/2,$px,$py,$color2);
    imagestring($im,2,$px+2,$py-6,$text,$color1);
    }
    } else {
    imagestring($im,4,$x+5,$y1-16,$text,$color1);
    }
    }
    }


    function fill_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1,$color2,$text='',$placeindex=0) {
    $r=$diameter/2;
    $w=deg2rad((360+$start+($end-$start)/2)%360);


    if (function_exists("imagefilledarc")) {
    // exists only if GD 2.0.1 is avaliable
    imagefilledarc($im, $centerX+1, $centerY+1, $diameter, $diameter, $start, $end, $color1, IMG_ARC_PIE);
    imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2, IMG_ARC_PIE);
    imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color1, IMG_ARC_NOFILL|IMG_ARC_EDGED);
    } else {
    imagearc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2);
    imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
    imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start+1)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
    imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end-1)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
    imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
    imagefill($im,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2, $color2);
    }
    if ($text) {
    if ($placeindex>0) {
    imageline($im,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2,$diameter, $placeindex*12,$color1);
    imagestring($im,4,$diameter, $placeindex*12,$text,$color1);

    } else {
    imagestring($im,4,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2,$text,$color1);
    }
    }
    }
    $size = GRAPH_SIZE; // image size
    $image = imagecreate($size+50, $size+10);

    $col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
    $col_red = imagecolorallocate($image, 0xD0, 0x60, 0x30);
    $col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60);
    $col_black = imagecolorallocate($image, 0, 0, 0);

    imagecolortransparent($image,$col_white);

    switch ($_GET['IMG']){
    case 1: // pie chart
    $tsize=$memcacheStats['limit_maxbytes'];
    $avail=$tsize-$memcacheStats['bytes'];
    $x=$y=$size/2;
    $angle_from = 0;
    $fuzz = 0.000001;

    foreach($memcacheStatsSingle as $serv=>$mcs) {
    $free = $mcs['STAT']['limit_maxbytes']-$mcs['STAT']['bytes'];
    $used = $mcs['STAT']['bytes'];


    if ($free>0){
    // draw free
    $angle_to = ($free*360)/$tsize;
    $perc =sprintf("%.2f%%", ($free *100) / $tsize) ;

    fill_arc($image,$x,$y,$size,$angle_from,$angle_from + $angle_to ,$col_black,$col_green,$perc);
    $angle_from = $angle_from + $angle_to ;
    }
    if ($used>0){
    // draw used
    $angle_to = ($used*360)/$tsize;
    $perc =sprintf("%.2f%%", ($used *100) / $tsize) ;
    fill_arc($image,$x,$y,$size,$angle_from,$angle_from + $angle_to ,$col_black,$col_red, '('.$perc.')' );
    $angle_from = $angle_from+ $angle_to ;
    }
    }

    break;

    case 2: // hit miss

    $hits = ($memcacheStats['get_hits']==0) ? 1:$memcacheStats['get_hits'];
    $misses = ($memcacheStats['get_misses']==0) ? 1:$memcacheStats['get_misses'];
    $total = $hits + $misses ;

    fill_box($image, 30,$size,50,-$hits*($size-21)/$total,$col_black,$col_green,sprintf("%.1f%%",$hits*100/$total));
    fill_box($image,130,$size,50,-max(4,($total-$hits)*($size-21)/$total),$col_black,$col_red,sprintf("%.1f%%",$misses*100/$total));
    break;

    }
    header("Content-type: image/png");
    imagepng($image);
    exit;
    }

    echo getHeader();
    echo getMenu();

    switch ($_GET['op']) {

    case 1: // host stats
    $phpversion = phpversion();
    $memcacheStats = getMemcacheStats();
    $memcacheStatsSingle = getMemcacheStats(false);

    $mem_size = $memcacheStats['limit_maxbytes'];
    $mem_used = $memcacheStats['bytes'];
    $mem_avail= $mem_size-$mem_used;
    $startTime = time()-array_sum($memcacheStats['uptime']);

    $curr_items = $memcacheStats['curr_items'];
    $total_items = $memcacheStats['total_items'];
    $hits = ($memcacheStats['get_hits']==0) ? 1:$memcacheStats['get_hits'];
    $misses = ($memcacheStats['get_misses']==0) ? 1:$memcacheStats['get_misses'];
    $sets = $memcacheStats['cmd_set'];

    $req_rate = sprintf("%.2f",($hits+$misses)/($time-$startTime));
    $hit_rate = sprintf("%.2f",($hits)/($time-$startTime));
    $miss_rate = sprintf("%.2f",($misses)/($time-$startTime));
    $set_rate = sprintf("%.2f",($sets)/($time-$startTime));

    echo <<< EOB
    <div class="info div1"><h2>General Cache Information</h2>
    <table cellspacing=0><tbody>
    <tr class=tr-1><td class=td-0>PHP Version</td><td>$phpversion</td></tr>
    EOB;
    echo "<tr class=tr-0><td class=td-0>Memcached Host". ((count($MEMCACHE_SERVERS)>1) ? 's':'')."</td><td>";
    $i=0;
    if (!isset($_GET['singleout']) && count($MEMCACHE_SERVERS)>1){
    foreach($MEMCACHE_SERVERS as $server){
    echo ($i+1).'. <a href="'.$PHP_SELF.'&singleout='.$i++.'">'.$server.'</a><br/>';
    }
    }
    else{
    echo '1.'.$MEMCACHE_SERVERS[0];
    }
    if (isset($_GET['singleout'])){
    echo '<a href="'.$PHP_SELF.'">(all servers)</a><br/>';
    }
    echo "</td></tr>\n";
    echo "<tr class=tr-1><td class=td-0>Total Memcache Cache</td><td>".bsize($memcacheStats['limit_maxbytes'])."</td></tr>\n";

    echo <<<EOB
    </tbody></table>
    </div>
    <div class="info div1"><h2>Memcache Server Information</h2>
    EOB;
    foreach($MEMCACHE_SERVERS as $server){
    echo '<table cellspacing=0><tbody>';
    echo '<tr class=tr-1><td class=td-1>'.$server.'</td><td><a href="'.$PHP_SELF.'&server='.array_search($server,$MEMCACHE_SERVERS).'&op=6">[<b>Flush this server</b>]</a></td></tr>';
    echo '<tr class=tr-0><td class=td-0>Start Time</td><td>',date(DATE_FORMAT,$memcacheStatsSingle[$server]['STAT']['time']-$memcacheStatsSingle[$server]['STAT']['uptime']),'</td></tr>';
    echo '<tr class=tr-1><td class=td-0>Uptime</td><td>',duration($memcacheStatsSingle[$server]['STAT']['time']-$memcacheStatsSingle[$server]['STAT']['uptime']),'</td></tr>';
    echo '<tr class=tr-0><td class=td-0>Memcached Server Version</td><td>'.$memcacheStatsSingle[$server]['STAT']['version'].'</td></tr>';
    echo '<tr class=tr-1><td class=td-0>Used Cache Size</td><td>',bsize($memcacheStatsSingle[$server]['STAT']['bytes']),'</td></tr>';
    echo '<tr class=tr-0><td class=td-0>Total Cache Size</td><td>',bsize($memcacheStatsSingle[$server]['STAT']['limit_maxbytes']),'</td></tr>';
    echo '</tbody></table>';
    }
    echo <<<EOB
    </div>
    <div class="graph div3"><h2>Host Status Diagrams</h2>
    <table cellspacing=0><tbody>
    EOB;

    $size='width='.(GRAPH_SIZE+50).' height='.(GRAPH_SIZE+10);
    echo <<<EOB
    <tr>
    <td class=td-0>Cache Usage</td>
    <td class=td-1>Hits &amp; Misses</td>
    </tr>
    EOB;

    echo
    graphics_avail() ?
    '<tr>'.
    "<td class=td-0><img alt=\"\" $size src=\"$PHP_SELF&IMG=1&".(isset($_GET['singleout'])? 'singleout='.$_GET['singleout'].'&':'')."$time\"></td>".
    "<td class=td-1><img alt=\"\" $size src=\"$PHP_SELF&IMG=2&".(isset($_GET['singleout'])? 'singleout='.$_GET['singleout'].'&':'')."$time\"></td></tr>\n"
    : "",
    '<tr>',
    '<td class=td-0><span class="green box">&nbsp;</span>Free: ',bsize($mem_avail).sprintf(" (%.1f%%)",$mem_avail*100/$mem_size),"</td>\n",
    '<td class=td-1><span class="green box">&nbsp;</span>Hits: ',$hits.sprintf(" (%.1f%%)",$hits*100/($hits+$misses)),"</td>\n",
    '</tr>',
    '<tr>',
    '<td class=td-0><span class="red box">&nbsp;</span>Used: ',bsize($mem_used ).sprintf(" (%.1f%%)",$mem_used *100/$mem_size),"</td>\n",
    '<td class=td-1><span class="red box">&nbsp;</span>Misses: ',$misses.sprintf(" (%.1f%%)",$misses*100/($hits+$misses)),"</td>\n";
    echo <<< EOB
    </tr>
    </tbody></table>
    <br/>
    <div class="info"><h2>Cache Information</h2>
    <table cellspacing=0><tbody>
    <tr class=tr-0><td class=td-0>Current Items(total)</td><td>$curr_items ($total_items)</td></tr>
    <tr class=tr-1><td class=td-0>Hits</td><td>{$hits}</td></tr>
    <tr class=tr-0><td class=td-0>Misses</td><td>{$misses}</td></tr>
    <tr class=tr-1><td class=td-0>Request Rate (hits, misses)</td><td>$req_rate cache requests/second</td></tr>
    <tr class=tr-0><td class=td-0>Hit Rate</td><td>$hit_rate cache requests/second</td></tr>
    <tr class=tr-1><td class=td-0>Miss Rate</td><td>$miss_rate cache requests/second</td></tr>
    <tr class=tr-0><td class=td-0>Set Rate</td><td>$set_rate cache requests/second</td></tr>
    </tbody></table>
    </div>
    EOB;

    break;

    case 2: // variables

    $m=0;
    $cacheItems= getCacheItems();
    $items = $cacheItems['items'];
    $totals = $cacheItems['counts'];
    $maxDump = MAX_ITEM_DUMP;
    foreach($items as $server => $entries) {

    echo <<< EOB
    <div class="info"><table cellspacing=0><tbody>
    <tr><th colspan="2">$server</th></tr>
    <tr><th>Slab Id</th><th>Info</th></tr>
    EOB;

    foreach($entries as $slabId => $slab) {
    $dumpUrl = $PHP_SELF.'&op=2&server='.(array_search($server,$MEMCACHE_SERVERS)).'&dumpslab='.$slabId;
    echo
    "<tr class=tr-$m>",
    "<td class=td-0><center>",'<a href="',$dumpUrl,'">',$slabId,'</a>',"</center></td>",
    "<td class=td-last><b>Item count:</b> ",$slab['number'],'<br/><b>Age:</b>',duration($time-$slab['age']),'<br/> <b>Evicted:</b>',((isset($slab['evicted']) && $slab['evicted']==1)? 'Yes':'No');
    if ((isset($_GET['dumpslab']) && $_GET['dumpslab']==$slabId) && (isset($_GET['server']) && $_GET['server']==array_search($server,$MEMCACHE_SERVERS))){
    echo "<br/><b>Items: item</b><br/>";
    $items = dumpCacheSlab($server,$slabId,$slab['number']);
    // maybe someone likes to do a pagination here :)
    $i=1;
    foreach($items['ITEM'] as $itemKey=>$itemInfo){
    $itemInfo = trim($itemInfo,'[ ]');


    echo '<a href="',$PHP_SELF,'&op=4&server=',(array_search($server,$MEMCACHE_SERVERS)),'&key=',base64_encode($itemKey).'">',$itemKey,'</a>';
    if ($i++ % 10 == 0) {
    echo '<br/>';
    }
    elseif ($i!=$slab['number']+1){
    echo ',';
    }
    }
    }

    echo "</td></tr>";
    $m=1-$m;
    }
    echo <<<EOB
    </tbody></table>
    </div><hr/>
    EOB;
    }
    break;

    break;

    case 4: //item dump
    if (!isset($_GET['key']) || !isset($_GET['server'])){
    echo "No key set!";
    break;
    }
    // I'm not doing anything to check the validity of the key string.
    // probably an exploit can be written to delete all the files in key=base64_encode("\n\r delete all").
    // somebody has to do a fix to this.
    $theKey = htmlentities(base64_decode($_GET['key']));

    $theserver = $MEMCACHE_SERVERS[(int)$_GET['server']];
    list($h,$p) = get_host_port_from_server($theserver);
    $r = sendMemcacheCommand($h,$p,'get '.$theKey);
    echo <<<EOB
    <div class="info"><table cellspacing=0><tbody>
    <tr><th>Server<th>Key</th><th>Value</th><th>Delete</th></tr>
    EOB;
    if (!isset($r['VALUE'])) {
    echo "<tr><td class=td-0>",$theserver,"</td><td class=td-0>",$theKey,
    "</td><td>[The requested item was not found or has expired]</td>",
    "<td></td>","</tr>";
    }
    else {

    echo "<tr><td class=td-0>",$theserver,"</td><td class=td-0>",$theKey,
    " <br/>flag:",$r['VALUE'][$theKey]['stat']['flag'],
    " <br/>Size:",bsize($r['VALUE'][$theKey]['stat']['size']),
    "</td><td>",chunk_split($r['VALUE'][$theKey]['value'],40),"</td>",
    '<td><a href="',$PHP_SELF,'&op=5&server=',(int)$_GET['server'],'&key=',base64_encode($theKey),"\">Delete</a></td>","</tr>";
    }
    echo <<<EOB
    </tbody></table>
    </div><hr/>
    EOB;
    break;
    case 5: // item delete
    if (!isset($_GET['key']) || !isset($_GET['server'])){
    echo "No key set!";
    break;
    }
    $theKey = htmlentities(base64_decode($_GET['key']));
    $theserver = $MEMCACHE_SERVERS[(int)$_GET['server']];
    list($h,$p) = get_host_port_from_server($theserver);
    $r = sendMemcacheCommand($h,$p,'delete '.$theKey);
    echo 'Deleting '.$theKey.':'.$r;
    break;

    case 6: // flush server
    $theserver = $MEMCACHE_SERVERS[(int)$_GET['server']];
    $r = flushServer($theserver);
    echo 'Flush '.$theserver.":".$r;
    break;
    }
    echo getFooter();

    ?>