diff --git a/library/HTMLPurifier.php b/library/HTMLPurifier.php
index 88ced00f..c758b439 100644
--- a/library/HTMLPurifier.php
+++ b/library/HTMLPurifier.php
@@ -109,7 +109,7 @@ class HTMLPurifier
         
         $config = $config ? HTMLPurifier_Config::create($config) : $this->config;
         
-        $context =& new HTMLPurifier_Context();
+        $context = new HTMLPurifier_Context();
         $html = $this->encoder->convertToUTF8($html, $config, $context);
         
         // purified HTML
diff --git a/library/HTMLPurifier/AttrDef/URI.php b/library/HTMLPurifier/AttrDef/URI.php
index d5a36434..a3ce6ded 100644
--- a/library/HTMLPurifier/AttrDef/URI.php
+++ b/library/HTMLPurifier/AttrDef/URI.php
@@ -139,10 +139,10 @@ class HTMLPurifier_AttrDef_URI extends HTMLPurifier_AttrDef
             // no need to validate the scheme's fmt since we do that when we
             // retrieve the specific scheme object from the registry
             $scheme = ctype_lower($scheme) ? $scheme : strtolower($scheme);
-            $scheme_obj =& $registry->getScheme($scheme, $config, $context);
+            $scheme_obj = $registry->getScheme($scheme, $config, $context);
             if (!$scheme_obj) return false; // invalid scheme, clean it out
         } else {
-            $scheme_obj =& $registry->getScheme(
+            $scheme_obj = $registry->getScheme(
                 $config->get('URI', 'DefaultScheme'), $config, $context
             );
         }
diff --git a/library/HTMLPurifier/AttrTransform/BdoDir.php b/library/HTMLPurifier/AttrTransform/BdoDir.php
index dd20f26a..0ea5eb6d 100644
--- a/library/HTMLPurifier/AttrTransform/BdoDir.php
+++ b/library/HTMLPurifier/AttrTransform/BdoDir.php
@@ -20,7 +20,7 @@ HTMLPurifier_ConfigSchema::defineAllowedValues(
 class HTMLPurifier_AttrTransform_BdoDir extends HTMLPurifier_AttrTransform
 {
     
-    function transform($attr, $config, $context) {
+    function transform($attr, $config, &$context) {
         if (isset($attr['dir'])) return $attr;
         $attr['dir'] = $config->get('Attr', 'DefaultTextDir');
         return $attr;
diff --git a/library/HTMLPurifier/AttrTransform/ImgRequired.php b/library/HTMLPurifier/AttrTransform/ImgRequired.php
index c943d696..4ff356d8 100644
--- a/library/HTMLPurifier/AttrTransform/ImgRequired.php
+++ b/library/HTMLPurifier/AttrTransform/ImgRequired.php
@@ -25,7 +25,7 @@ HTMLPurifier_ConfigSchema::define(
 class HTMLPurifier_AttrTransform_ImgRequired extends HTMLPurifier_AttrTransform
 {
     
-    function transform($attr, $config, $context) {
+    function transform($attr, $config, &$context) {
         
         $src = true;
         if (!isset($attr['src'])) {
diff --git a/library/HTMLPurifier/AttrTransform/Lang.php b/library/HTMLPurifier/AttrTransform/Lang.php
index 97fd8064..acb1786a 100644
--- a/library/HTMLPurifier/AttrTransform/Lang.php
+++ b/library/HTMLPurifier/AttrTransform/Lang.php
@@ -10,7 +10,7 @@ require_once 'HTMLPurifier/AttrTransform.php';
 class HTMLPurifier_AttrTransform_Lang extends HTMLPurifier_AttrTransform
 {
     
-    function transform($attr, $config, $context) {
+    function transform($attr, $config, &$context) {
         
         $lang     = isset($attr['lang']) ? $attr['lang'] : false;
         $xml_lang = isset($attr['xml:lang']) ? $attr['xml:lang'] : false;
diff --git a/library/HTMLPurifier/AttrTransform/TextAlign.php b/library/HTMLPurifier/AttrTransform/TextAlign.php
index e42354a0..84e5a016 100644
--- a/library/HTMLPurifier/AttrTransform/TextAlign.php
+++ b/library/HTMLPurifier/AttrTransform/TextAlign.php
@@ -8,7 +8,7 @@ require_once 'HTMLPurifier/AttrTransform.php';
 class HTMLPurifier_AttrTransform_TextAlign
     extends HTMLPurifier_AttrTransform {
 
-    function transform($attr, $config, $context) {
+    function transform($attr, $config, &$context) {
         
         if (!isset($attr['align'])) return $attr;
         
diff --git a/library/HTMLPurifier/Config.php b/library/HTMLPurifier/Config.php
index 39f62855..43c5681d 100644
--- a/library/HTMLPurifier/Config.php
+++ b/library/HTMLPurifier/Config.php
@@ -46,6 +46,7 @@ class HTMLPurifier_Config
     
     /**
      * Convenience constructor that creates a config object based on a mixed var
+     * @static
      * @param mixed $config Variable that defines the state of the config
      *                      object. Can be: a HTMLPurifier_Config() object or
      *                      an array of directives based on loadArray().
@@ -60,6 +61,7 @@ class HTMLPurifier_Config
     
     /**
      * Convenience constructor that creates a default configuration object.
+     * @static
      * @return Default HTMLPurifier_Config object.
      */
     function createDefault() {
@@ -178,4 +180,4 @@ class HTMLPurifier_Config
     
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/library/HTMLPurifier/ConfigSchema.php b/library/HTMLPurifier/ConfigSchema.php
index 9b3c6e2f..6969c1d2 100644
--- a/library/HTMLPurifier/ConfigSchema.php
+++ b/library/HTMLPurifier/ConfigSchema.php
@@ -67,6 +67,7 @@ class HTMLPurifier_ConfigSchema {
     
     /**
      * Retrieves an instance of the application-wide configuration definition.
+     * @static
      */
     function &instance($prototype = null) {
         static $instance;
@@ -81,6 +82,7 @@ class HTMLPurifier_ConfigSchema {
     
     /**
      * Defines a directive for configuration
+     * @static
      * @warning Will fail of directive's namespace is defined
      * @param $namespace Namespace the directive is in
      * @param $name Key of directive
@@ -144,6 +146,7 @@ class HTMLPurifier_ConfigSchema {
     
     /**
      * Defines a namespace for directives to be put into.
+     * @static
      * @param $namespace Namespace's name
      * @param $description Description of the namespace
      */
@@ -169,6 +172,7 @@ class HTMLPurifier_ConfigSchema {
      * 
      * Directive value aliases are convenient for developers because it lets
      * them set a directive to several values and get the same result.
+     * @static
      * @param $namespace Directive's namespace
      * @param $name Name of Directive
      * @param $alias Name of aliased value
@@ -200,6 +204,7 @@ class HTMLPurifier_ConfigSchema {
     
     /**
      * Defines a set of allowed values for a directive.
+     * @static
      * @param $namespace Namespace of directive
      * @param $name Name of directive
      * @param $allowed_values Arraylist of allowed values
@@ -380,4 +385,4 @@ class HTMLPurifier_ConfigEntity_Directive extends HTMLPurifier_ConfigEntity
     
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/library/HTMLPurifier/Encoder.php b/library/HTMLPurifier/Encoder.php
index 8465c709..d9cc655c 100644
--- a/library/HTMLPurifier/Encoder.php
+++ b/library/HTMLPurifier/Encoder.php
@@ -48,6 +48,7 @@ class HTMLPurifier_Encoder
      * It will parse according to UTF-8 and return a valid UTF8 string, with
      * non-SGML codepoints excluded.
      * 
+     * @static
      * @note Just for reference, the non-SGML code points are 0 to 31 and
      *       127 to 159, inclusive.  However, we allow code points 9, 10
      *       and 13, which are the tab, line feed and carriage return
@@ -225,6 +226,7 @@ class HTMLPurifier_Encoder
     
     /**
      * Translates a Unicode codepoint into its corresponding UTF-8 character.
+     * @static
      * @note Based on Feyd's function at
      *       <http://forums.devnetwork.net/viewtopic.php?p=191404#191404>,
      *       which is in public domain.
diff --git a/library/HTMLPurifier/EntityLookup.php b/library/HTMLPurifier/EntityLookup.php
index 9816f865..f950cc22 100644
--- a/library/HTMLPurifier/EntityLookup.php
+++ b/library/HTMLPurifier/EntityLookup.php
@@ -26,6 +26,7 @@ class HTMLPurifier_EntityLookup {
     
     /**
      * Retrieves sole instance of the object.
+     * @static
      * @param Optional prototype of custom lookup table to overload with.
      */
     function instance($prototype = false) {
diff --git a/library/HTMLPurifier/HTMLDefinition.php b/library/HTMLPurifier/HTMLDefinition.php
index 7ca086a9..8ef4fb0e 100644
--- a/library/HTMLPurifier/HTMLDefinition.php
+++ b/library/HTMLPurifier/HTMLDefinition.php
@@ -300,9 +300,6 @@ class HTMLPurifier_HTMLDefinition
         $this->info['b']->child    =
         $this->info['big']->child  =
         $this->info['small']->child=
-        $this->info['u']->child    =
-        $this->info['s']->child    =
-        $this->info['strike']->child    =
         $this->info['bdo']->child  =
         $this->info['span']->child =
         $this->info['dt']->child   =
@@ -314,6 +311,12 @@ class HTMLPurifier_HTMLDefinition
         $this->info['h5']->child   = 
         $this->info['h6']->child   = $e_Inline;
         
+        if (!$this->strict) {
+            $this->info['u']->child    =
+            $this->info['s']->child    =
+            $this->info['strike']->child    = $e_Inline;
+        }
+        
         // the only three required definitions, besides custom table code
         $this->info['ol']->child   =
         $this->info['ul']->child   = new HTMLPurifier_ChildDef_Required('li');
@@ -355,10 +358,12 @@ class HTMLPurifier_HTMLDefinition
         // reuses $e_Inline and $e_Block
         foreach ($e_Inline->elements as $name => $bool) {
             if ($name == '#PCDATA') continue;
+            if (!isset($this->info[$name])) continue;
             $this->info[$name]->type = 'inline';
         }
         
         foreach ($e_Block->elements as $name => $bool) {
+            if (!isset($this->info[$name])) continue;
             $this->info[$name]->type = 'block';
         }
         
@@ -648,4 +653,4 @@ class HTMLPurifier_ElementDef
     
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/library/HTMLPurifier/Lexer.php b/library/HTMLPurifier/Lexer.php
index 31d31d27..122bbb5d 100644
--- a/library/HTMLPurifier/Lexer.php
+++ b/library/HTMLPurifier/Lexer.php
@@ -138,6 +138,8 @@ class HTMLPurifier_Lexer
      * default with your own implementation.  A copy/reference of the prototype
      * lexer will now be returned when you request a new lexer.
      * 
+     * @static
+     * 
      * @note
      * Though it is possible to call this factory method from subclasses,
      * such usage is not recommended.
@@ -166,6 +168,7 @@ class HTMLPurifier_Lexer
     /**
      * Translates CDATA sections into regular sections (through escaping).
      * 
+     * @static
      * @protected
      * @param $string HTML string to process.
      * @returns HTML with CDATA sections escaped.
@@ -181,6 +184,7 @@ class HTMLPurifier_Lexer
     /**
      * Callback function for escapeCDATA() that does the work.
      * 
+     * @static
      * @warning Though this is public in order to let the callback happen,
      *          calling it directly is not recommended.
      * @params $matches PCRE matches array, with index 0 the entire match
diff --git a/library/HTMLPurifier/Lexer/DOMLex.php b/library/HTMLPurifier/Lexer/DOMLex.php
index 57720457..dcf3caee 100644
--- a/library/HTMLPurifier/Lexer/DOMLex.php
+++ b/library/HTMLPurifier/Lexer/DOMLex.php
@@ -88,6 +88,11 @@ class HTMLPurifier_Lexer_DOMLex extends HTMLPurifier_Lexer
         } elseif ($node->nodeType === XML_COMMENT_NODE) {
             $tokens[] = $this->factory->createComment($node->data);
             return;
+        } elseif (
+            // not-well tested: there may be other nodes we have to grab
+            $node->nodeType !== XML_ELEMENT_NODE
+        ) {
+            return;
         }
         
         $attr = $node->hasAttributes() ?
diff --git a/library/HTMLPurifier/Lexer/PEARSax3.php b/library/HTMLPurifier/Lexer/PEARSax3.php
index ccd201a7..18777ef7 100644
--- a/library/HTMLPurifier/Lexer/PEARSax3.php
+++ b/library/HTMLPurifier/Lexer/PEARSax3.php
@@ -37,7 +37,7 @@ class HTMLPurifier_Lexer_PEARSax3 extends HTMLPurifier_Lexer
         
         $string = $this->normalize($string, $config, $context);
         
-        $parser=& new XML_HTMLSax3();
+        $parser = new XML_HTMLSax3();
         $parser->set_object($this);
         $parser->set_element_handler('openHandler','closeHandler');
         $parser->set_data_handler('dataHandler');
diff --git a/library/HTMLPurifier/Printer/HTMLDefinition.php b/library/HTMLPurifier/Printer/HTMLDefinition.php
index c85585fc..2ec297e7 100644
--- a/library/HTMLPurifier/Printer/HTMLDefinition.php
+++ b/library/HTMLPurifier/Printer/HTMLDefinition.php
@@ -10,10 +10,10 @@ class HTMLPurifier_Printer_HTMLDefinition extends HTMLPurifier_Printer
      */
     var $def;
     
-    function render(&$config) {
+    function render($config) {
         $ret = '';
         $this->config =& $config;
-        $this->def =& $config->getHTMLDefinition();
+        $this->def = $config->getHTMLDefinition();
         $def =& $this->def;
         
         $ret .= $this->start('div', array('class' => 'HTMLPurifier_Printer'));
diff --git a/library/HTMLPurifier/URISchemeRegistry.php b/library/HTMLPurifier/URISchemeRegistry.php
index d9c25259..82fd9601 100644
--- a/library/HTMLPurifier/URISchemeRegistry.php
+++ b/library/HTMLPurifier/URISchemeRegistry.php
@@ -32,6 +32,7 @@ class HTMLPurifier_URISchemeRegistry
     
     /**
      * Retrieve sole instance of the registry.
+     * @static
      * @param $prototype Optional prototype to overload sole instance with,
      *                   or bool true to reset to default registry.
      * @note Pass a registry object $prototype with a compatible interface and
diff --git a/smoketests/common.php b/smoketests/common.php
index 13cc6e59..ec0267c2 100644
--- a/smoketests/common.php
+++ b/smoketests/common.php
@@ -3,6 +3,7 @@
 header('Content-type: text/html; charset=UTF-8');
 
 require_once '../library/HTMLPurifier.auto.php';
+error_reporting(E_ALL);
 
 function escapeHTML($string) {
     $string = HTMLPurifier_Encoder::cleanUTF8($string);
diff --git a/tests/Debugger.php b/tests/Debugger.php
index 3213af3c..2ef5ba8e 100644
--- a/tests/Debugger.php
+++ b/tests/Debugger.php
@@ -70,6 +70,9 @@ class Debugger
         $this->add_pre = !extension_loaded('xdebug');
     }
     
+    /**
+     * @static
+     */
     function &instance() {
         static $soleInstance = false;
         if (!$soleInstance) $soleInstance = new Debugger();
diff --git a/tests/HTMLPurifier/AttrDef/CompositeTest.php b/tests/HTMLPurifier/AttrDef/CompositeTest.php
index 9c49a289..a61db20c 100644
--- a/tests/HTMLPurifier/AttrDef/CompositeTest.php
+++ b/tests/HTMLPurifier/AttrDef/CompositeTest.php
@@ -28,10 +28,10 @@ class HTMLPurifier_AttrDef_CompositeTest extends HTMLPurifier_AttrDefHarness
         // first test: value properly validates on first definition
         // so second def is never called
         
-        $def1 =& new HTMLPurifier_AttrDefMock($this);
-        $def2 =& new HTMLPurifier_AttrDefMock($this);
+        $def1 = new HTMLPurifier_AttrDefMock($this);
+        $def2 = new HTMLPurifier_AttrDefMock($this);
         $defs = array(&$def1, &$def2);
-        $def =& new HTMLPurifier_AttrDef_Composite_Testable($defs);
+        $def = new HTMLPurifier_AttrDef_Composite_Testable($defs);
         $input = 'FOOBAR';
         $output = 'foobar';
         $def1_params = array($input, $config, $context);
@@ -47,10 +47,10 @@ class HTMLPurifier_AttrDef_CompositeTest extends HTMLPurifier_AttrDefHarness
         
         // second test, first def fails, second def works
         
-        $def1 =& new HTMLPurifier_AttrDefMock($this);
-        $def2 =& new HTMLPurifier_AttrDefMock($this);
+        $def1 = new HTMLPurifier_AttrDefMock($this);
+        $def2 = new HTMLPurifier_AttrDefMock($this);
         $defs = array(&$def1, &$def2);
-        $def =& new HTMLPurifier_AttrDef_Composite_Testable($defs);
+        $def = new HTMLPurifier_AttrDef_Composite_Testable($defs);
         $input = 'BOOMA';
         $output = 'booma';
         $def_params = array($input, $config, $context);
@@ -67,10 +67,10 @@ class HTMLPurifier_AttrDef_CompositeTest extends HTMLPurifier_AttrDefHarness
         
         // third test, all fail, so composite faiils
         
-        $def1 =& new HTMLPurifier_AttrDefMock($this);
-        $def2 =& new HTMLPurifier_AttrDefMock($this);
+        $def1 = new HTMLPurifier_AttrDefMock($this);
+        $def2 = new HTMLPurifier_AttrDefMock($this);
         $defs = array(&$def1, &$def2);
-        $def =& new HTMLPurifier_AttrDef_Composite_Testable($defs);
+        $def = new HTMLPurifier_AttrDef_Composite_Testable($defs);
         $input = 'BOOMA';
         $output = false;
         $def_params = array($input, $config, $context);
diff --git a/tests/HTMLPurifier/AttrDef/URITest.php b/tests/HTMLPurifier/AttrDef/URITest.php
index a80c436f..f9a9ab41 100644
--- a/tests/HTMLPurifier/AttrDef/URITest.php
+++ b/tests/HTMLPurifier/AttrDef/URITest.php
@@ -206,7 +206,7 @@ class HTMLPurifier_AttrDef_URITest extends HTMLPurifier_AttrDefHarness
         $registry =& HTMLPurifier_URISchemeRegistry::instance($fake_registry);
         
         // now, let's add a pseudo-scheme to the registry
-        $this->scheme =& new HTMLPurifier_URISchemeMock($this);
+        $this->scheme = new HTMLPurifier_URISchemeMock($this);
         
         // here are the schemes we will support with overloaded mocks
         $registry->setReturnReference('getScheme', $this->scheme, array('http', $this->config, $this->context));
diff --git a/tests/HTMLPurifier/ContextTest.php b/tests/HTMLPurifier/ContextTest.php
index 68604d5c..88c0f615 100644
--- a/tests/HTMLPurifier/ContextTest.php
+++ b/tests/HTMLPurifier/ContextTest.php
@@ -20,7 +20,7 @@ class HTMLPurifier_ContextTest extends UnitTestCase
         
         $this->assertFalse($this->context->exists('IDAccumulator'));
         
-        $accumulator =& new HTMLPurifier_IDAccumulatorMock($this);
+        $accumulator = new HTMLPurifier_IDAccumulatorMock($this);
         $this->context->register('IDAccumulator', $accumulator);
         $this->assertTrue($this->context->exists('IDAccumulator'));
         
diff --git a/tests/HTMLPurifier/LexerTest.php b/tests/HTMLPurifier/LexerTest.php
index a690466b..3e627dab 100644
--- a/tests/HTMLPurifier/LexerTest.php
+++ b/tests/HTMLPurifier/LexerTest.php
@@ -16,7 +16,10 @@ class HTMLPurifier_LexerTest extends UnitTestCase
         
         $this->DirectLex = new HTMLPurifier_Lexer_DirectLex();
         
-        if ( $GLOBALS['HTMLPurifierTest']['PEAR'] ) {
+        // E_STRICT = 2048, int used for PHP4 compat
+        if ( $GLOBALS['HTMLPurifierTest']['PEAR'] && 
+             ((error_reporting() & 2048) != 2048)
+        ) {
             $this->_has_pear = true;
             require_once 'HTMLPurifier/Lexer/PEARSax3.php';
             $this->PEARSax3  = new HTMLPurifier_Lexer_PEARSax3();