output the source code of the sample that was run

samples/Sample_Header.php

@@ -43,13 +43,19 @@ $pageHeading = IS_INDEX ? '' : "<h1>{$pageHeading}</h1>";
 // Populate samples
 $files = '';
 if ($handle = opendir('.')) {
-    while (false !== ($file = readdir($handle))) {
+    $sampleFiles = array();
+    while (false !== ($sampleFile = readdir($handle))) {
+        $sampleFiles[] = $sampleFile;
+    }
+    sort($sampleFiles);
+    closedir($handle);
+
+    foreach ($sampleFiles as $file) {
         if (preg_match('/^Sample_\d+_/', $file)) {
             $name = str_replace('_', ' ', preg_replace('/(Sample_|\.php)/', '', $file));
             $files .= "<li><a href='{$file}'>{$name}</a></li>";
         }
     }
-    closedir($handle);
 }
 
 /**
@@ -78,6 +84,11 @@ function write($phpWord, $filename, $writers)
     }
 
     $result .= getEndingNotes($writers);
+    $result .= '<pre><code>';
+    if (file_exists($filename . '.php')) {
+        $result .= highlight_file($filename . '.php', true);
+    }
+    $result .= '</code></pre>';
 
     return $result;
 }