APC Graphs don't show and links don't work in prod-check report

I am running APC 3.1.7, but a newer version (3.1.13) is available at http://pecl.php.net/package/APC/3.1.13

How can I best communitate to you the differences in the two files? When looking at them with Kompare if I ignore changes in case, the amount of whitespace or added/removed empty lines I get the following statistics:

Format: Unified
Number of hunks: 31
Number of differences: 20

Please forgive the huge amount of stuff below but perhaps it's helpful.
I also did a diff from the command line with the following command and got the info pasted below:

diff -u -b -B -d -i --ignore-case --ignore-space-change apc.php prod_check.apc.inc

--- apc.php	2013-04-01 23:40:10.000000000 -0400
+++ prod_check.apc.inc	2013-02-26 17:02:14.000000000 -0500
@@ -3,7 +4,7 @@
   +----------------------------------------------------------------------+
   | APC                                                                  |
   +----------------------------------------------------------------------+
-  | Copyright (c) 2006-2011 The PHP Group                                |
+  | Copyright (c) 2008 The PHP Group                                     |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
@@ -22,7 +23,7 @@
 
  */
 
-$VERSION='$Id: apc.php 307048 2011-01-03 23:53:17Z kalle $';
+$VERSION='$Id$';
 
 ////////// READ OPTIONAL CONFIGURATION FILE ////////////
 if (file_exists("apc.conf.php")) include("apc.conf.php");
@@ -38,8 +39,8 @@
 											// If set to 1:
 											//  You need to change ADMIN_PASSWORD to make
 											//  this work!
-defaults('ADMIN_USERNAME','apc'); 			// Admin Username
-defaults('ADMIN_PASSWORD','password');  	// Admin Password - CHANGE THIS TO ENABLE!!!
+//defaults('ADMIN_USERNAME','apc'); 			// Admin Username
+//defaults('ADMIN_PASSWORD','password');  	// Admin Password - CHANGE THIS TO ENABLE!!!
 
 // (beckerr) I'm using a clear text password here, because I've no good idea how to let 
 //           users generate a md5 or crypt password in a easy way to fill it in above
@@ -49,8 +50,6 @@
 
 defaults('GRAPH_SIZE',200);					// Image size
 
-//defaults('PROXY', 'tcp://127.0.0.1:8080');
-
 ////////// END OF DEFAULT CONFIG AREA /////////////////////////////////////////////////////////////
 
 
@@ -61,13 +60,12 @@
 
 // rewrite $PHP_SELF to block XSS attacks
 //
-$PHP_SELF= isset($_SERVER['PHP_SELF']) ? htmlentities(strip_tags($_SERVER['PHP_SELF'],''), ENT_QUOTES, 'UTF-8') : '';
-$time = time();
-$host = php_uname('n');
+//$PHP_SELF= isset($_SERVER['PHP_SELF']) ? htmlentities(strip_tags($_SERVER['PHP_SELF'],''), ENT_QUOTES) : '';
+//Line above modified to make this work for the Drupal 'Prod check' module
+$PHP_SELF= isset($_GET['q']) ? base_path() . htmlentities(strip_tags($_GET['q'],''), ENT_QUOTES) : '';
+$time = REQUEST_TIME;
+$host = getenv('HOSTNAME');
 if($host) { $host = '('.$host.')'; }
-if (isset($_SERVER['SERVER_ADDR'])) {
-  $host .= ' ('.$_SERVER['SERVER_ADDR'].')';
-}
 
 // operation constants
 define('OB_HOST_STATS',1);
@@ -134,13 +132,18 @@
 if (empty($MYREQUEST['OB']))	$MYREQUEST['OB']=OB_HOST_STATS;
 if (!isset($MYREQUEST['COUNT'])) $MYREQUEST['COUNT']=20;
 if (!isset($scope_list[$MYREQUEST['SCOPE']])) $MYREQUEST['SCOPE']='A';
-
+// added for prod_check support
+global $MY_SELF;
+// end prod_check
 $MY_SELF=
 	"$PHP_SELF".
 	"?SCOPE=".$MYREQUEST['SCOPE'].
 	"&SORT1=".$MYREQUEST['SORT1'].
 	"&SORT2=".$MYREQUEST['SORT2'].
 	"&COUNT=".$MYREQUEST['COUNT'];
+// added for prod_check support
+global $MY_SELF_WO_SORT;
+// end prod_check
 $MY_SELF_WO_SORT=
 	"$PHP_SELF".
 	"?SCOPE=".$MYREQUEST['SCOPE'].
@@ -345,7 +348,6 @@
 		for($i=0; $i<$mem['num_seg']; $i++) {	
 			$ptr = 0;
 			$free = $mem['block_lists'][$i];
-			uasort($free, 'block_sort');
 			foreach($free as $block) {
 				if($block['offset']!=$ptr) {       // Used block
 					$angle_to = $angle_from+($block['offset']-$ptr)/$s;
@@ -403,7 +405,6 @@
 		for($i=0; $i<$mem['num_seg']; $i++) {	
 			$ptr = 0;
 			$free = $mem['block_lists'][$i];
-			uasort($free, 'block_sort');
 			foreach($free as $block) {
 				if($block['offset']!=$ptr) {       // Used block
 					$h=(GRAPH_SIZE-5)*($block['offset']-$ptr)/$s;
@@ -501,15 +502,6 @@
 	}
 }
 
-function block_sort($array1, $array2)
-{
-	if ($array1['offset'] > $array2['offset']) {
-		return 1;
-	} else {
-		return -1;
-	}
-}
-
 
 ?>
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
@@ -743,7 +735,7 @@
 	
 if ($AUTHENTICATED) {
 	echo <<<EOB
-		<li><a class="aright" href="$MY_SELF&CC=1&OB={$MYREQUEST['OB']}" onClick="javascript:return confirm('Are you sure?');">Clear $cache_mode Cache</a></li>
+		<li><a class="aright" href="$MY_SELF&CC=1&OB={$MYREQUEST['OB']}" onClick="javascipt:return confirm('Are you sure?');">Clear $cache_mode Cache</a></li>
 EOB;
 }
 echo <<<EOB
@@ -991,14 +983,14 @@
 					echo
 						"<tr class=tr-$m>",
 						"<td class=td-0>",ucwords(preg_replace("/_/"," ",$k)),"</td>",
-						"<td class=td-last>",(preg_match("/time/",$k) && $value!='None') ? date(DATE_FORMAT,$value) : htmlspecialchars($value, ENT_QUOTES, 'UTF-8'),"</td>",
+						"<td class=td-last>",(preg_match("/time/",$k) && $value!='None') ? date(DATE_FORMAT,$value) : $value,"</td>",
 						"</tr>";
 					$m=1-$m;
 				}
 				if($fieldkey=='info') {
 					echo "<tr class=tr-$m><td class=td-0>Stored Value</td><td class=td-last><pre>";
 					$output = var_export(apc_fetch($entry[$fieldkey]),true);
-					echo htmlspecialchars($output, ENT_QUOTES, 'UTF-8');
+					echo htmlspecialchars($output);
 					echo "</pre></td></tr>\n";
 				}
 				break;
@@ -1094,7 +1086,7 @@
 		}
 		if (!$AUTHENTICATED) {
 			// hide all path entries if not logged in
-			$list[$k.$entry[$fieldname]]=preg_replace('/^.*(\\/|\\\\)/','*hidden*/',$entry);
+			$list[$k.$entry[$fieldname]]=preg_replace('/^.*(\\/|\\\\)/','<i>&lt;hidden&gt;</i>/',$entry);
 		} else {
 			$list[$k.$entry[$fieldname]]=$entry;
 		}
@@ -1113,10 +1105,9 @@
 		$i=0;
 		foreach($list as $k => $entry) {
       if(!$MYREQUEST['SEARCH'] || preg_match($MYREQUEST['SEARCH'], $entry[$fieldname]) != 0) {  
-        $field_value = htmlentities(strip_tags($entry[$fieldname],''), ENT_QUOTES, 'UTF-8');
         echo
           '<tr class=tr-',$i%2,'>',
-          "<td class=td-0><a href=\"$MY_SELF&OB=",$MYREQUEST['OB'],"&SH=",md5($entry[$fieldkey]),"\">",$field_value,'</a></td>',
+          "<td class=td-0><a href=\"$MY_SELF&OB=",$MYREQUEST['OB'],"&SH=",md5($entry[$fieldkey]),"\">",$entry[$fieldname],'</a></td>',
           '<td class="td-n center">',$entry['num_hits'],'</td>',
           '<td class="td-n right">',$entry['mem_size'],'</td>',
           '<td class="td-n center">',date(DATE_FORMAT,$entry['access_time']),'</td>',
@@ -1301,12 +1292,8 @@
 		<th></th>
 		</tr>
 EOB;
-  if (defined('PROXY')) {
-    $ctxt = stream_context_create( array( 'http' => array( 'proxy' => PROXY, 'request_fulluri' => True ) ) );
-    $rss = @file_get_contents("http://pecl.php.net/feeds/pkg_apc.rss", False, $ctxt);
-  } else {
+
     $rss = @file_get_contents("http://pecl.php.net/feeds/pkg_apc.rss");
-  }
 	if (!$rss) {
 		echo '<tr class="td-last center"><td>Unable to fetch version information.</td></tr>';
 	} else {
@@ -1337,8 +1324,8 @@
 			} else if (!$i--) {
 				break;
 			}
-			echo "<b><a href=\"http://pecl.php.net/package/APC/$ver\">".htmlspecialchars($v, ENT_QUOTES, 'UTF-8')."</a></b><br><blockquote>";
-			echo nl2br(htmlspecialchars(current($match[2]), ENT_QUOTES, 'UTF-8'))."</blockquote>";
+			echo "<b><a href=\"http://pecl.php.net/package/APC/$ver\">".htmlspecialchars($v)."</a></b><br><blockquote>";
+			echo nl2br(htmlspecialchars(current($match[2])))."</blockquote>";
 			next($match[2]);
 		}
 		echo '</td></tr>';

Thank you so much for you help with this malc0mn.

admin/reports/status/php says: PHP Version 5.3.10-1ubuntu3.6

Thanks for getting back to me. To be honest I have know idea and would need to do some research to even figure out where to look up such information. It seems like I will be needing to take a different direction for the time being. I had been trying to get everything working on my home based localhost before going live. I'm not officially live yet, still writing content for the site and putting some final touches on the structure, but I have been practicing uploading the site and database and making everything work online. Things are working really well so far but APC is not installed on the server. My current web hosting is shared so installing APC could be a pain. I think there is a funky way of installing it in one of my site's sub-folders but I'm not sure if it's worth the effort because the site is quite responsive at things currently are. I think for the moment I will just simply enjoy all of the other wonderful features this module provides and I will come back to the APC thing later if needed.

Thanks again for all your help!! It really is a great module, especially for a first timer.