mprins / dokuwiki-plugin-dokusioc

lib/sioc_inc.php

Spacing +267 added lines, -267 removed lines

@@ -105,36 +105,36 @@ 
     }
 
     public function siocURL($type, $id, $page = "") {
-        $type_part = $this->url4type . $this->urlequal . $type;
+        $type_part = $this->url4type.$this->urlequal.$type;
 
-        if($id) {
-            if(isset($this->type_table[$type])) {
+        if ($id) {
+            if (isset($this->type_table[$type])) {
                             $myID = $this->type_table[$type];
             } else {
-                            $myID = (($this->url_usetype) ? $type . '_' : '') . $this->url4id;
+                            $myID = (($this->url_usetype) ? $type.'_' : '').$this->url4id;
             }
 
-            $id_part = $this->urlseparator . $myID . $this->urlequal . $id;
+            $id_part = $this->urlseparator.$myID.$this->urlequal.$id;
         } else {
             $id_part = '';
         }
 
-        ($page) ? $page_part = $this->urlseparator . $this->url4page . $this->urlequal . $page : $page_part = '';
+        ($page) ? $page_part = $this->urlseparator.$this->url4page.$this->urlequal.$page : $page_part = '';
 
         ($this->url_suffix && !isset($this->ignore_suffix[$type])) ? $suffix = $this->urlseparator
             . $this->url_suffix : $suffix = '';
 
-        $siocURL = $this->sioc_url . $type_part . $id_part . $page_part . $suffix;
+        $siocURL = $this->sioc_url.$type_part.$id_part.$page_part.$suffix;
         return clean($siocURL, true);
     }
 
     public function export($rdf_content = '') {
-        header('Content-Type: application/rdf+xml; charset=' . $this->encoding, true, 200);
+        header('Content-Type: application/rdf+xml; charset='.$this->encoding, true, 200);
         echo $this->makeRDF($rdf_content);
     }
 
     public function makeRDF($rdf_content = '') {
-        $rdf = '<?xml version="1.0" encoding="' . $this->encoding . '" ?>' . "\n";
+        $rdf = '<?xml version="1.0" encoding="'.$this->encoding.'" ?>'."\n";
         $rdf .= ' 
 <rdf:RDF
     xmlns="http://xmlns.com/foaf/0.1/"
@@ -149,18 +149,18 @@ 
     xmlns:sioc="http://rdfs.org/sioc/ns#"
     xmlns:sioct="http://rdfs.org/sioc/types#"
     xmlns:owl="http://www.w3.org/2002/07/owl">
-<foaf:Document rdf:about="' . clean($this->profile_url, true) . '">
-	<dc:title>"' . clean($this->title) . '" (SIOC profile)</dc:title>
-	<foaf:primaryTopic rdf:resource="' . clean($this->objects[0]->_url, true) . '"/>
-	<admin:generatorAgent rdf:resource="' . clean($this->generator, true) . '"/>
-	<admin:generatorAgent rdf:resource="' . clean(EXPORTER_URL, true) . '?version=' . EXPORTER_VERSION . '"/>
+<foaf:Document rdf:about="' . clean($this->profile_url, true).'">
+	<dc:title>"' . clean($this->title).'" (SIOC profile)</dc:title>
+	<foaf:primaryTopic rdf:resource="' . clean($this->objects[0]->_url, true).'"/>
+	<admin:generatorAgent rdf:resource="' . clean($this->generator, true).'"/>
+	<admin:generatorAgent rdf:resource="' . clean(EXPORTER_URL, true).'?version='.EXPORTER_VERSION.'"/>
 </foaf:Document>' . "\n";
-        if($rdf_content) {
+        if ($rdf_content) {
             $rdf .= $rdf_content;
         }
-        if(count($this->objects)) {
-            foreach($this->objects as $object) {
-                if($object) {
+        if (count($this->objects)) {
+            foreach ($this->objects as $object) {
+                if ($object) {
                     $rdf .= $object->getContent($this);
                 }
             }
@@ -241,52 +241,52 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = "<sioc:Site rdf:about=\"" . clean($this->url) . "\">\n";
-        $rdf .= "    <dc:title>" . clean($this->name) . "</dc:title>\n";
-        $rdf .= "    <dc:description>" . clean($this->description) . "</dc:description>\n";
-        $rdf .= "    <sioc:link rdf:resource=\"" . clean($this->url) . "\"/>\n";
-        if($this->forums) {
-            foreach($this->forums as $id => $url) {
-                $rdf .= "    <sioc:host_of rdf:resource=\"" . clean($url) . "\"/>\n";
+        $rdf = "<sioc:Site rdf:about=\"".clean($this->url)."\">\n";
+        $rdf .= "    <dc:title>".clean($this->name)."</dc:title>\n";
+        $rdf .= "    <dc:description>".clean($this->description)."</dc:description>\n";
+        $rdf .= "    <sioc:link rdf:resource=\"".clean($this->url)."\"/>\n";
+        if ($this->forums) {
+            foreach ($this->forums as $id => $url) {
+                $rdf .= "    <sioc:host_of rdf:resource=\"".clean($url)."\"/>\n";
             }
         }
-        if($this->next_forums) {
-            $rdf .= "    <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('site', "", $this->page + 1) . "\"/>\n";
+        if ($this->next_forums) {
+            $rdf .= "    <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('site', "", $this->page + 1)."\"/>\n";
         }
-        if($this->usergroup_uri) {
-            $rdf .= "    <sioc:has_Usergroup rdf:resource=\"" . $this->usergroup_uri . "\"/>\n";
+        if ($this->usergroup_uri) {
+            $rdf .= "    <sioc:has_Usergroup rdf:resource=\"".$this->usergroup_uri."\"/>\n";
         } else {
-            $rdf .= "    <sioc:has_Usergroup rdf:nodeID=\"" . AUTHORS_NODE . "\"/>\n";
+            $rdf .= "    <sioc:has_Usergroup rdf:nodeID=\"".AUTHORS_NODE."\"/>\n";
         }
         $rdf .= "</sioc:Site>\n";
         // Forums
-        if($this->forums) {
+        if ($this->forums) {
             $rdf .= "\n";
-            foreach($this->forums as $id => $url) {
-                $rdf .= '<sioc:Forum rdf:about="' . clean($url) . "\">\n";
-                $rdf .= "    <sioc:link rdf:resource=\"" . clean($url) . "\"/>\n";
-                $rdf .= "    <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('forum', $id) . "\"/>\n";
+            foreach ($this->forums as $id => $url) {
+                $rdf .= '<sioc:Forum rdf:about="'.clean($url)."\">\n";
+                $rdf .= "    <sioc:link rdf:resource=\"".clean($url)."\"/>\n";
+                $rdf .= "    <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('forum', $id)."\"/>\n";
                 $rdf .= "</sioc:Forum>\n";
             }
         }
         // Usergroup
-        if($this->users) {
+        if ($this->users) {
             $rdf .= "\n";
-            if($this->usergroup_uri) {
-                $rdf .= '<sioc:UserAccountgroup rdf:about="' . $this->usergroup_uri . "\">\n";
+            if ($this->usergroup_uri) {
+                $rdf .= '<sioc:UserAccountgroup rdf:about="'.$this->usergroup_uri."\">\n";
             } else {
-                $rdf .= '<sioc:UserAccountgroup rdf:nodeID="' . AUTHORS_NODE . "\">\n";
+                $rdf .= '<sioc:UserAccountgroup rdf:nodeID="'.AUTHORS_NODE."\">\n";
             }
-            $rdf .= "    <sioc:name>Authors for \"" . clean($this->name) . "\"</sioc:name>\n";
-            foreach($this->users as $id => $url) {
+            $rdf .= "    <sioc:name>Authors for \"".clean($this->name)."\"</sioc:name>\n";
+            foreach ($this->users as $id => $url) {
                 $rdf .= "    <sioc:has_member>\n";
-                $rdf .= "        <sioc:UserAccount rdf:about=\"" . clean($url) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('user', $id) . "\"/>\n";
+                $rdf .= "        <sioc:UserAccount rdf:about=\"".clean($url)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('user', $id)."\"/>\n";
                 $rdf .= "        </sioc:UserAccount>\n";
                 $rdf .= "    </sioc:has_member>\n";
             }
-            if($this->next_users) {
-                $rdf .= "    <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('site', "", $this->page + 1) . "\"/>\n";
+            if ($this->next_users) {
+                $rdf .= "    <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('site', "", $this->page + 1)."\"/>\n";
             }
             $rdf .= "</sioc:UserAccountgroup>\n";
         }
@@ -334,13 +334,13 @@ 
         $this->uri  = $uri;
         $this->name = $name;
 
-        if(preg_match_all('/^.+@.+\..+$/Ui', $email, $check, PREG_SET_ORDER)) {
-            if(preg_match_all('/^mailto:(.+@.+\..+$)/Ui', $email, $matches, PREG_SET_ORDER)) {
+        if (preg_match_all('/^.+@.+\..+$/Ui', $email, $check, PREG_SET_ORDER)) {
+            if (preg_match_all('/^mailto:(.+@.+\..+$)/Ui', $email, $matches, PREG_SET_ORDER)) {
                 $this->email = $email;
                 $this->sha1  = sha1($email);
             } else {
-                $this->email = "mailto:" . $email;
-                $this->sha1  = sha1("mailto:" . $email);
+                $this->email = "mailto:".$email;
+                $this->sha1  = sha1("mailto:".$email);
             }
         }
         $this->homepage = $homepage;
@@ -353,36 +353,36 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = "<foaf:Person rdf:about=\"" . clean($this->foaf_uri) . "\">\n";
-        if($this->name) {
-            $rdf .= "    <foaf:name>" . $this->name . "</foaf:name>\n";
+        $rdf = "<foaf:Person rdf:about=\"".clean($this->foaf_uri)."\">\n";
+        if ($this->name) {
+            $rdf .= "    <foaf:name>".$this->name."</foaf:name>\n";
         }
-        if($this->email) {
-            $rdf .= "    <foaf:mbox_sha1sum>" . $this->sha1 . "</foaf:mbox_sha1sum>\n";
+        if ($this->email) {
+            $rdf .= "    <foaf:mbox_sha1sum>".$this->sha1."</foaf:mbox_sha1sum>\n";
         }
-        if($this->foaf_url) {
-            $rdf .= "    <rdfs:seeAlso rdf:resource=\"" . $this->foaf_url . "\"/>\n";
+        if ($this->foaf_url) {
+            $rdf .= "    <rdfs:seeAlso rdf:resource=\"".$this->foaf_url."\"/>\n";
         }
         $rdf .= "    <foaf:holdsAccount>\n";
-        $rdf .= "        <sioc:UserAccount rdf:about=\"" . clean($this->uri) . "\">\n";
-        if($this->nick) {
-            $rdf .= "            <sioc:name>" . $this->nick . "</sioc:name>\n";
+        $rdf .= "        <sioc:UserAccount rdf:about=\"".clean($this->uri)."\">\n";
+        if ($this->nick) {
+            $rdf .= "            <sioc:name>".$this->nick."</sioc:name>\n";
         }
-        if($this->email) {
-            if($exp->_export_email) {
-                $rdf .= "            <sioc:email rdf:resource=\"" . $this->email . "\"/>\n";
+        if ($this->email) {
+            if ($exp->_export_email) {
+                $rdf .= "            <sioc:email rdf:resource=\"".$this->email."\"/>\n";
             }
-            $rdf .= "            <sioc:email_sha1>" . $this->sha1 . "</sioc:email_sha1>\n";
+            $rdf .= "            <sioc:email_sha1>".$this->sha1."</sioc:email_sha1>\n";
         }
-        if($this->role) {
+        if ($this->role) {
             $rdf .= "            <sioc:has_function>\n";
             $rdf .= "                <sioc:Role>\n";
-            $rdf .= "                    <sioc:name>" . $this->role . "</sioc:name>\n";
+            $rdf .= "                    <sioc:name>".$this->role."</sioc:name>\n";
             $rdf .= "                </sioc:Role>\n";
             $rdf .= "            </sioc:has_function>\n";
         }
-        if($this->sioc_url) {
-            $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $this->sioc_url . "\"/>\n";
+        if ($this->sioc_url) {
+            $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$this->sioc_url."\"/>\n";
         }
         $rdf .= "        </sioc:UserAccount>\n";
         $rdf .= "    </foaf:holdsAccount>\n";
@@ -449,33 +449,33 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = '<sioc:Thread rdf:about="' . clean($this->url) . "\">\n";
-        $rdf .= "    <sioc:link rdf:resource=\"" . clean($this->url) . "\"/>\n";
-        if($this->views) {
-          $rdf .= "    <sioc:num_views>" . $this->views . "</sioc:num_views>\n";
+        $rdf = '<sioc:Thread rdf:about="'.clean($this->url)."\">\n";
+        $rdf .= "    <sioc:link rdf:resource=\"".clean($this->url)."\"/>\n";
+        if ($this->views) {
+          $rdf .= "    <sioc:num_views>".$this->views."</sioc:num_views>\n";
         }
-        if($this->note) {
-          $rdf .= "    <rdfs:comment>" . $this->note . "</rdfs:comment>\n";
+        if ($this->note) {
+          $rdf .= "    <rdfs:comment>".$this->note."</rdfs:comment>\n";
         }
-        if($this->subject) {
-            $rdf .= "    <dc:title>" . $this->subject . "</dc:title>\n";
+        if ($this->subject) {
+            $rdf .= "    <dc:title>".$this->subject."</dc:title>\n";
         }
-        if($this->created) {
-            $rdf .= "    <dcterms:created>" . $this->created . "</dcterms:created>\n";
+        if ($this->created) {
+            $rdf .= "    <dcterms:created>".$this->created."</dcterms:created>\n";
         }
-        if($this->parents) {
-            foreach($this->parents as $id => $uri) {
+        if ($this->parents) {
+            foreach ($this->parents as $id => $uri) {
                 $rdf .= "    <sioc:has_parent>\n";
-                $rdf .= "        <sioc:Forum rdf:about=\"" . clean($uri) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('forum', $id) . "\"/>\n";
+                $rdf .= "        <sioc:Forum rdf:about=\"".clean($uri)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('forum', $id)."\"/>\n";
                 $rdf .= "        </sioc:Forum>\n";
                 $rdf .= "    </sioc:has_parent>\n";
             }
         }
         // here the tags are just used as keywords for dc:subject
-        if($this->tags) {
-            foreach($this->tags as $id => $tag) {
-                $rdf .= "    <dc:subject>" . $tag . "</dc:subject>\n";
+        if ($this->tags) {
+            foreach ($this->tags as $id => $tag) {
+                $rdf .= "    <dc:subject>".$tag."</dc:subject>\n";
             }
         }
         // here the tags are used by creating a tag object with a blank node, with the keyword as moat:name - if you
@@ -501,31 +501,31 @@ 
                 }
             }
             */
-        if($this->related) {
-            foreach($this->related as $id => $url) {
+        if ($this->related) {
+            foreach ($this->related as $id => $url) {
                 $rdf .= "    <sioc:related_to>\n";
-                $rdf .= "        <sioc:Thread rdf:about=\"" . clean($url) . "\"/>\n";
+                $rdf .= "        <sioc:Thread rdf:about=\"".clean($url)."\"/>\n";
                 $rdf .= "    </sioc:related_to>\n"; // todo - each topic needs to have a URI
             }
         }
 
-        if($this->posts) {
-            foreach($this->posts as $id => $data) {
+        if ($this->posts) {
+            foreach ($this->posts as $id => $data) {
                 $rdf .= "    <sioc:container_of>\n";
-                $rdf .= "        <sioc:Post rdf:about=\"" . clean($data[url]) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('post', $id) . "\"/>\n";
-                if($data[prev]) {
-                    $rdf .= "            <sioc:previous_by_date rdf:resource=\"" . clean($data[prev]) . "\"/>\n";
+                $rdf .= "        <sioc:Post rdf:about=\"".clean($data[url])."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('post', $id)."\"/>\n";
+                if ($data[prev]) {
+                    $rdf .= "            <sioc:previous_by_date rdf:resource=\"".clean($data[prev])."\"/>\n";
                 }
-                if($data[next]) {
-                    $rdf .= "            <sioc:next_by_date rdf:resource=\"" . clean($data[next]) . "\"/>\n";
+                if ($data[next]) {
+                    $rdf .= "            <sioc:next_by_date rdf:resource=\"".clean($data[next])."\"/>\n";
                 }
                 $rdf .= "        </sioc:Post>\n";
                 $rdf .= "    </sioc:container_of>\n";
             }
         }
-        if($this->next) {
-            $rdf .= "\r<rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('thread', $this->id, $this->page + 1)
+        if ($this->next) {
+            $rdf .= "\r<rdfs:seeAlso rdf:resource=\"".$exp->siocURL('thread', $this->id, $this->page + 1)
                 . "\"/>\n";
         }
         $rdf .= "</sioc:Thread>\n";
@@ -605,69 +605,69 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = '<' . $this->_type . ' rdf:about="' . clean($this->url) . "\">\n";
-        if($this->_type != 'sioc:Forum') {
+        $rdf = '<'.$this->_type.' rdf:about="'.clean($this->url)."\">\n";
+        if ($this->_type != 'sioc:Forum') {
           $rdf .= "    <rdf:type rdf:resource=\"http://rdfs.org/sioc/ns#Forum\" />\n";
         }
-        $rdf .= "    <sioc:link rdf:resource=\"" . clean($this->url) . "\"/>\n";
-        if($this->blog_title) {
-          $rdf .= "    <dc:title>" . $this->blog_title . "</dc:title>\n";
+        $rdf .= "    <sioc:link rdf:resource=\"".clean($this->url)."\"/>\n";
+        if ($this->blog_title) {
+          $rdf .= "    <dc:title>".$this->blog_title."</dc:title>\n";
         }
-        if($this->description) {
-          $rdf .= "    <dc:description>" . $this->description . "</dc:description>\n";
+        if ($this->description) {
+          $rdf .= "    <dc:description>".$this->description."</dc:description>\n";
         }
-        if($this->note) {
-          $rdf .= "    <rdfs:comment>" . $this->note . "</rdfs:comment>\n";
+        if ($this->note) {
+          $rdf .= "    <rdfs:comment>".$this->note."</rdfs:comment>\n";
         }
 
-        if($this->parents) {
-            foreach($this->parents as $id => $uri) {
+        if ($this->parents) {
+            foreach ($this->parents as $id => $uri) {
                 $rdf .= "    <sioc:has_parent>\n";
-                $rdf .= "        <sioc:Forum rdf:about=\"" . clean($uri) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('forum', $id) . "\"/>\n";
+                $rdf .= "        <sioc:Forum rdf:about=\"".clean($uri)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('forum', $id)."\"/>\n";
                 $rdf .= "        </sioc:Forum>\n";
                 $rdf .= "    </sioc:has_parent>\n";
             }
         }
 
-        if($this->threads) {
-            foreach($this->threads as $id => $uri) {
+        if ($this->threads) {
+            foreach ($this->threads as $id => $uri) {
                 $rdf .= "    <sioc:parent_of>\n";
-                $rdf .= "        <sioc:Thread rdf:about=\"" . clean($uri) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('thread', $id) . "\"/>\n";
+                $rdf .= "        <sioc:Thread rdf:about=\"".clean($uri)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('thread', $id)."\"/>\n";
                 $rdf .= "        </sioc:Thread>\n";
                 $rdf .= "    </sioc:parent_of>\n";
             }
         }
 
-        if($this->posts) {
-            foreach($this->posts as $id => $url) {
+        if ($this->posts) {
+            foreach ($this->posts as $id => $url) {
                 $rdf .= "    <sioc:container_of>\n";
-                $rdf .= "        <sioc:Post rdf:about=\"" . clean($url) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('post', $id) . "\"/>\n";
+                $rdf .= "        <sioc:Post rdf:about=\"".clean($url)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('post', $id)."\"/>\n";
                 $rdf .= "        </sioc:Post>\n";
                 $rdf .= "    </sioc:container_of>\n";
             }
         }
 
-        if($this->creator) {
-            if($this->creator->_id) {
+        if ($this->creator) {
+            if ($this->creator->_id) {
                 $rdf .= "    <sioc:has_creator>\n";
-                $rdf .= "        <sioc:UserAccount rdf:about=\"" . clean($this->creator->_uri) . "\">\n";
-                if($this->creator->_sioc_url) {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $this->creator->_sioc_url . "\"/>\n";
+                $rdf .= "        <sioc:UserAccount rdf:about=\"".clean($this->creator->_uri)."\">\n";
+                if ($this->creator->_sioc_url) {
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$this->creator->_sioc_url."\"/>\n";
                 } else {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('user', $this->creator->_id)
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('user', $this->creator->_id)
                         . "\"/>\n";
                 }
                 $rdf .= "        </sioc:UserAccount>\n";
                 $rdf .= "    </sioc:has_creator>\n";
                 $rdf .= "    <foaf:maker>\n";
-                $rdf .= "        <foaf:Person rdf:about=\"" . clean($this->creator->_foaf_uri) . "\">\n";
-                if($this->creator->_foaf_url) {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $this->creator->_foaf_url . "\"/>\n";
+                $rdf .= "        <foaf:Person rdf:about=\"".clean($this->creator->_foaf_uri)."\">\n";
+                if ($this->creator->_foaf_url) {
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$this->creator->_foaf_url."\"/>\n";
                 } else {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('user', $this->creator->_id)
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('user', $this->creator->_id)
                         . "\"/>\n";
                 }
                 $rdf .= "        </foaf:Person>\n";
@@ -675,14 +675,14 @@ 
             } else {
                 $rdf .= "    <foaf:maker>\n";
                 $rdf .= "        <foaf:Person";
-                if($this->creator->_name) {
-                    $rdf .= " foaf:name=\"" . $this->creator->_name . "\"";
+                if ($this->creator->_name) {
+                    $rdf .= " foaf:name=\"".$this->creator->_name."\"";
                 }
-                if($this->creator->_sha1) {
-                    $rdf .= " foaf:mbox_sha1sum=\"" . $this->creator->_sha1 . "\"";
+                if ($this->creator->_sha1) {
+                    $rdf .= " foaf:mbox_sha1sum=\"".$this->creator->_sha1."\"";
                 }
-                if($this->creator->_name) {
-                    $rdf .= ">\n            <foaf:homepage rdf:resource=\"" . $this->creator->_homepage
+                if ($this->creator->_name) {
+                    $rdf .= ">\n            <foaf:homepage rdf:resource=\"".$this->creator->_homepage
                         . "\"/>\n        </foaf:Person>\n";
                 } else {
                     $rdf .= "/>\n";
@@ -691,30 +691,30 @@ 
             }
         }
 
-        if($this->administrator) {
-            if($this->administrator->_id) {
+        if ($this->administrator) {
+            if ($this->administrator->_id) {
                 $rdf .= "    <sioc:has_administrator>\n";
-                $rdf .= "        <sioc:UserAccount rdf:about=\"" . clean($this->administrator->_uri) . "\">\n";
-                if($this->administrator->_sioc_url) {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $this->administrator->_sioc_url . "\"/>\n";
+                $rdf .= "        <sioc:UserAccount rdf:about=\"".clean($this->administrator->_uri)."\">\n";
+                if ($this->administrator->_sioc_url) {
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$this->administrator->_sioc_url."\"/>\n";
                 } else {
                   $rdf .= "            <rdfs:seeAlso rdf:resource=\""
-                                                        . $exp->siocURL('user', $this->administrator->_id) . "\"/>\n";
+                                                        . $exp->siocURL('user', $this->administrator->_id)."\"/>\n";
                 }
                 $rdf .= "        </sioc:UserAccount>\n";
                 $rdf .= "    </sioc:has_administrator>\n";
             }
         }
-        if($this->links) {
-            foreach($this->links as $url => $link) {
-                $rdf .= "    <sioc:links_to rdfs:label=\"$link\" rdf:resource=\"" . clean($url) . "\"/>\n";
+        if ($this->links) {
+            foreach ($this->links as $url => $link) {
+                $rdf .= "    <sioc:links_to rdfs:label=\"$link\" rdf:resource=\"".clean($url)."\"/>\n";
             }
         }
 
-        if($this->next) {
-            $rdf .= "\r<rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('forum', $this->id, $this->page + 1) . "\"/>\n";
+        if ($this->next) {
+            $rdf .= "\r<rdfs:seeAlso rdf:resource=\"".$exp->siocURL('forum', $this->id, $this->page + 1)."\"/>\n";
         }
-        $rdf .= "</" . $this->_type . ">";
+        $rdf .= "</".$this->_type.">";
 
         return $rdf;
     }
@@ -779,31 +779,31 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = '<' . $this->_type . " rdf:about=\"" . clean($this->url) . "\">\n";
-        if($this->_type != 'sioc:Post') {
+        $rdf = '<'.$this->_type." rdf:about=\"".clean($this->url)."\">\n";
+        if ($this->_type != 'sioc:Post') {
           $rdf .= "    <rdf:type rdf:resource=\"http://rdfs.org/sioc/ns#Post\" />\n";
         }
-        if($this->subject) {
-            $rdf .= "    <dc:title>" . $this->subject . "</dc:title>\n";
+        if ($this->subject) {
+            $rdf .= "    <dc:title>".$this->subject."</dc:title>\n";
         }
-        if($this->creator) {
-            if($this->creator->_id) {
+        if ($this->creator) {
+            if ($this->creator->_id) {
                 $rdf .= "    <sioc:has_creator>\n";
-                $rdf .= "        <sioc:UserAccount rdf:about=\"" . clean($this->creator->_uri) . "\">\n";
-                if($this->creator->_sioc_url) {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $this->creator->_sioc_url . "\"/>\n";
+                $rdf .= "        <sioc:UserAccount rdf:about=\"".clean($this->creator->_uri)."\">\n";
+                if ($this->creator->_sioc_url) {
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$this->creator->_sioc_url."\"/>\n";
                 } else {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('user', $this->creator->_id)
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('user', $this->creator->_id)
                         . "\"/>\n";
                 }
                 $rdf .= "        </sioc:UserAccount>\n";
                 $rdf .= "    </sioc:has_creator>\n";
                 $rdf .= "    <foaf:maker>\n";
-                $rdf .= "        <foaf:Person rdf:about=\"" . clean($this->creator->_foaf_uri) . "\">\n";
-                if($this->creator->_foaf_url) {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $this->creator->_foaf_url . "\"/>\n";
+                $rdf .= "        <foaf:Person rdf:about=\"".clean($this->creator->_foaf_uri)."\">\n";
+                if ($this->creator->_foaf_url) {
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$this->creator->_foaf_url."\"/>\n";
                 } else {
-                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('user', $this->creator->_id)
+                    $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('user', $this->creator->_id)
                         . "\"/>\n";
                 }
                 $rdf .= "        </foaf:Person>\n";
@@ -811,14 +811,14 @@ 
             } else {
                 $rdf .= "    <foaf:maker>\n";
                 $rdf .= "        <foaf:Person";
-                if($this->creator->_name) {
-                    $rdf .= " foaf:name=\"" . $this->creator->_name . "\"";
+                if ($this->creator->_name) {
+                    $rdf .= " foaf:name=\"".$this->creator->_name."\"";
                 }
-                if($this->creator->_sha1) {
-                    $rdf .= " foaf:mbox_sha1sum=\"" . $this->creator->_sha1 . "\"";
+                if ($this->creator->_sha1) {
+                    $rdf .= " foaf:mbox_sha1sum=\"".$this->creator->_sha1."\"";
                 }
-                if($this->creator->_name) {
-                    $rdf .= ">\n            <foaf:homepage rdf:resource=\"" . $this->creator->_homepage
+                if ($this->creator->_name) {
+                    $rdf .= ">\n            <foaf:homepage rdf:resource=\"".$this->creator->_homepage
                         . "\"/>\n        </foaf:Person>\n";
                 } else {
                     $rdf .= "/>\n";
@@ -826,53 +826,53 @@ 
                 $rdf .= "    </foaf:maker>\n";
             }
         }
-        $rdf .= "    <dcterms:created>" . $this->created . "</dcterms:created>\n";
-        if($this->updated and ($this->created != $this->updated)) {
+        $rdf .= "    <dcterms:created>".$this->created."</dcterms:created>\n";
+        if ($this->updated and ($this->created != $this->updated)) {
           $rdf .= "    <dcterms:modified>"
-            . $this->updated . "</dcterms:modified>\n";
+            . $this->updated."</dcterms:modified>\n";
         }
-        $rdf .= "    <sioc:content>" . pureContent($this->content) . "</sioc:content>\n";
+        $rdf .= "    <sioc:content>".pureContent($this->content)."</sioc:content>\n";
 
-        $rdf .= "    <content:encoded><![CDATA[" . $this->encoded . "]]></content:encoded>\n";
-        if($this->topics) {
-            foreach($this->topics as $url => $topic) {
-                $rdf .= "    <sioc:topic rdfs:label=\"$topic\" rdf:resource=\"" . clean($url) . "\"/>\n";
+        $rdf .= "    <content:encoded><![CDATA[".$this->encoded."]]></content:encoded>\n";
+        if ($this->topics) {
+            foreach ($this->topics as $url => $topic) {
+                $rdf .= "    <sioc:topic rdfs:label=\"$topic\" rdf:resource=\"".clean($url)."\"/>\n";
             }
         }
-        if($this->links) {
-            foreach($this->links as $url => $link) {
-                $rdf .= "    <sioc:links_to rdfs:label=\"$link\" rdf:resource=\"" . clean($url) . "\"/>\n";
+        if ($this->links) {
+            foreach ($this->links as $url => $link) {
+                $rdf .= "    <sioc:links_to rdfs:label=\"$link\" rdf:resource=\"".clean($url)."\"/>\n";
             }
         }
-        if($this->has_part) {
-            foreach($this->has_part as $id => $url) {
+        if ($this->has_part) {
+            foreach ($this->has_part as $id => $url) {
                 $rdf .= "    <dcterms:hasPart>\n";
-                $rdf .= "        <dcmitype:Image rdf:about=\"" . clean($url) . "\"/>\n";
+                $rdf .= "        <dcmitype:Image rdf:about=\"".clean($url)."\"/>\n";
                 $rdf .= "    </dcterms:hasPart>\n";
             }
         }
-        if($this->reply_of) {
-            foreach($this->reply_of as $id => $url) {
+        if ($this->reply_of) {
+            foreach ($this->reply_of as $id => $url) {
                 $rdf .= "    <sioc:reply_of>\n";
-                $rdf .= "        <sioc:Post rdf:about=\"" . clean($url) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('post', $id) . "\"/>\n";
+                $rdf .= "        <sioc:Post rdf:about=\"".clean($url)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('post', $id)."\"/>\n";
                 $rdf .= "        </sioc:Post>\n";
                 $rdf .= "    </sioc:reply_of>\n";
             }
         }
-        if($this->comments) {
-            foreach($this->comments as $id => $url) {
+        if ($this->comments) {
+            foreach ($this->comments as $id => $url) {
                 $rdf .= "    <sioc:has_reply>\n";
-                $rdf .= "        <sioc:Post rdf:about=\"" . clean($url) . "\">\n";
+                $rdf .= "        <sioc:Post rdf:about=\"".clean($url)."\">\n";
                 //        if($comments->f('comment_trackback')) $rdf .= "            <sioc:type>"
                 // . POST_TRACKBACK . "</sioc:type>\n";
                 //        else $rdf .= "            <sioc:type>" . POST_COMMENT  . "</sioc:type>\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $exp->siocURL('comment', $id) . "\"/>\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".$exp->siocURL('comment', $id)."\"/>\n";
                 $rdf .= "        </sioc:Post>\n";
                 $rdf .= "    </sioc:has_reply>\n";
             }
         }
-        $rdf .= "</" . $this->_type . ">\n";
+        $rdf .= "</".$this->_type.">\n";
         return $rdf;
     }
 }
@@ -936,17 +936,17 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = '<' . $this->_type . " rdf:about=\"" . clean($this->url) . "\">\n";
-        if($this->subject) {
-            $rdf .= "    <dc:title>" . clean($this->subject) . "</dc:title>\n";
-            if(strcmp($this->has_container, 'http://en.wikipedia.org') === 0) {
-                $rdf .= "    <foaf:primaryTopic rdf:resource=\"" . clean(
+        $rdf = '<'.$this->_type." rdf:about=\"".clean($this->url)."\">\n";
+        if ($this->subject) {
+            $rdf .= "    <dc:title>".clean($this->subject)."</dc:title>\n";
+            if (strcmp($this->has_container, 'http://en.wikipedia.org') === 0) {
+                $rdf .= "    <foaf:primaryTopic rdf:resource=\"".clean(
                         'http://dbpedia.org/resource/'
                         . $this->subject
-                    ) . "\"/>\n";
+                    )."\"/>\n";
             }
         }
-        if($this->creator->_nick) {
+        if ($this->creator->_nick) {
             /*if ($this->creator->id) {
                 $rdf .= "    <sioc:has_creator>\n";
                 $rdf .= "        <sioc:UserAccount rdf:about=\"" . clean($this->creator->uri) ."\">\n";
@@ -966,16 +966,16 @@ 
                 $rdf .= "    </foaf:maker>\n";
             } else {*/
             $rdf .= "    <sioc:has_creator>\n";
-            $rdf .= "        <sioc:UserAccount rdf:about=\"" . clean($this->creator->_uri) . "\">\n";
-            $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $this->creator->_uri);
-            if($this->api) {
-                $rdf .= clean("&api=" . $this->api);
+            $rdf .= "        <sioc:UserAccount rdf:about=\"".clean($this->creator->_uri)."\">\n";
+            $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->creator->_uri);
+            if ($this->api) {
+                $rdf .= clean("&api=".$this->api);
             }
             $rdf .= "\"/>\n";
             $rdf .= "        </sioc:UserAccount>\n";
             $rdf .= "    </sioc:has_creator>\n";
-            $rdf .= "    <dc:contributor>" . clean($this->creator->_nick) . "</dc:contributor>\n";
+            $rdf .= "    <dc:contributor>".clean($this->creator->_nick)."</dc:contributor>\n";
             /*$rdf .= "    <foaf:maker>\n";
             $rdf .= "        <foaf:Person";
             if($this->creator->name) $rdf .= " foaf:name=\"" . $this->creator->name ."\"";
@@ -986,69 +986,69 @@ 
             $rdf .= "    </foaf:maker>\n";
         }*/
         } else {
-            if($this->creator !== 'void') {
+            if ($this->creator !== 'void') {
                 $rdf .= "    <sioc:has_creator>\n";
                 $rdf .= "        <sioc:UserAccount>\n";
                 $rdf .= "        </sioc:UserAccount>\n";
                 $rdf .= "    </sioc:has_creator>\n";
             }
         }
-        if($this->created) {
-            $rdf .= "    <dcterms:created>" . $this->created . "</dcterms:created>\n";
+        if ($this->created) {
+            $rdf .= "    <dcterms:created>".$this->created."</dcterms:created>\n";
         }
-        if(is_array($this->topics)) {
-            foreach($this->topics as $topic => $url) {
+        if (is_array($this->topics)) {
+            foreach ($this->topics as $topic => $url) {
                 $rdf .= "    <sioc:topic>\n";
-                $rdf .= "        <sioct:Category rdf:about=\"" . clean($url) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                    clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $url);
-                if($this->api) {
-                    $rdf .= clean("&api=" . $this->api);
+                $rdf .= "        <sioct:Category rdf:about=\"".clean($url)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                    clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$url);
+                if ($this->api) {
+                    $rdf .= clean("&api=".$this->api);
                 }
                 $rdf .= "\"/>\n";
                 $rdf .= "        </sioct:Category>\n";
                 $rdf .= "    </sioc:topic>\n";
             }
         }
-        if(is_array($this->links)) {
-            foreach($this->links as $label => $url) {
+        if (is_array($this->links)) {
+            foreach ($this->links as $label => $url) {
                 $rdf .= "    <sioc:links_to>\n";
-                $rdf .= "        <sioct:WikiArticle rdf:about=\"" . clean($url) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                    clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $url);
-                if($this->api) {
-                    $rdf .= clean("&api=" . $this->api);
+                $rdf .= "        <sioct:WikiArticle rdf:about=\"".clean($url)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                    clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$url);
+                if ($this->api) {
+                    $rdf .= clean("&api=".$this->api);
                 }
                 $rdf .= "\"/>\n";
                 $rdf .= "        </sioct:WikiArticle>\n";
                 $rdf .= "    </sioc:links_to>\n";
             }
         } else {
-            if($this->links) {
+            if ($this->links) {
                 $rdf .= "    <sioc:links_to>\n";
-                $rdf .= "        <sioct:WikiArticle rdf:about=\"" . clean($this->links) . "\">\n";
-                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                    clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $this->links);
-                if($this->api) {
-                    $rdf .= clean("&api=" . $this->api);
+                $rdf .= "        <sioct:WikiArticle rdf:about=\"".clean($this->links)."\">\n";
+                $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                    clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->links);
+                if ($this->api) {
+                    $rdf .= clean("&api=".$this->api);
                 }
                 $rdf .= "\"/>\n";
                 $rdf .= "        </sioct:WikiArticle>\n";
                 $rdf .= "    </sioc:links_to>\n";
             }
         }
-        if(is_array($this->ext_links)) {
-            foreach($this->ext_links as $label => $url) {
-                $rdf .= "    <sioc:links_to rdf:resource=\"" . clean($url) . "\"/>\n";
+        if (is_array($this->ext_links)) {
+            foreach ($this->ext_links as $label => $url) {
+                $rdf .= "    <sioc:links_to rdf:resource=\"".clean($url)."\"/>\n";
             }
         }
-        if($this->previous_version) {
+        if ($this->previous_version) {
             $rdf .= "    <sioc:previous_version>\n";
-            $rdf .= "        <sioct:WikiArticle rdf:about=\"" . clean($this->previous_version) . "\">\n";
-            $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $this->previous_version);
-            if($this->api) {
-                $rdf .= clean("&api=" . $this->api);
+            $rdf .= "        <sioct:WikiArticle rdf:about=\"".clean($this->previous_version)."\">\n";
+            $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->previous_version);
+            if ($this->api) {
+                $rdf .= clean("&api=".$this->api);
             }
             $rdf .= "\"/>\n";
             $rdf .= "        </sioct:WikiArticle>\n";
@@ -1066,13 +1066,13 @@ 
             $rdf .= "    </sioc:earlier_version>\n";
              */
         }
-        if($this->next_version) {
+        if ($this->next_version) {
             $rdf .= "    <sioc:next_version>\n";
-            $rdf .= "        <sioct:WikiArticle rdf:about=\"" . clean($this->next_version) . "\">\n";
-            $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $this->next_version);
-            if($this->api) {
-                $rdf .= clean("&api=" . $this->api);
+            $rdf .= "        <sioct:WikiArticle rdf:about=\"".clean($this->next_version)."\">\n";
+            $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->next_version);
+            if ($this->api) {
+                $rdf .= clean("&api=".$this->api);
             }
             $rdf .= "\"/>\n";
             $rdf .= "        </sioct:WikiArticle>\n";
@@ -1090,46 +1090,46 @@ 
             $rdf .= "    </sioc:later_version>\n";
              */
         }
-        if($this->latest_version) {
+        if ($this->latest_version) {
             $rdf .= "    <sioc:latest_version>\n";
-            $rdf .= "        <sioct:WikiArticle rdf:about=\"" . clean($this->latest_version) . "\">\n";
-            $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $this->latest_version);
-            if($this->api) {
-                $rdf .= clean("&api=" . $this->api);
+            $rdf .= "        <sioct:WikiArticle rdf:about=\"".clean($this->latest_version)."\">\n";
+            $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->latest_version);
+            if ($this->api) {
+                $rdf .= clean("&api=".$this->api);
             }
             $rdf .= "\"/>\n";
             $rdf .= "        </sioct:WikiArticle>\n";
             $rdf .= "    </sioc:latest_version>\n";
         }
-        if($this->has_discussion && (strpos($this->has_discussion, 'Talk:Talk:') == false)) {
+        if ($this->has_discussion && (strpos($this->has_discussion, 'Talk:Talk:') == false)) {
             $rdf .= "    <sioc:has_discussion>\n";
-            $rdf .= "        <sioct:WikiArticle rdf:about=\"" . clean($this->has_discussion) . "\">\n";
-            $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
-                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $this->has_discussion);
-            if($this->api) {
-                $rdf .= clean("&api=" . $this->api);
+            $rdf .= "        <sioct:WikiArticle rdf:about=\"".clean($this->has_discussion)."\">\n";
+            $rdf .= "            <rdfs:seeAlso rdf:resource=\"".
+                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->has_discussion);
+            if ($this->api) {
+                $rdf .= clean("&api=".$this->api);
             }
             $rdf .= "\"/>\n";
             $rdf .= "        </sioct:WikiArticle>\n";
             $rdf .= "    </sioc:has_discussion>\n";
         }
-        if($this->has_container) {
+        if ($this->has_container) {
             $rdf .= "    <sioc:has_container>\n";
-            $rdf .= "        <sioct:Wiki rdf:about=\"" . clean($this->has_container) . "\"/>\n";
+            $rdf .= "        <sioct:Wiki rdf:about=\"".clean($this->has_container)."\"/>\n";
             $rdf .= "    </sioc:has_container>\n";
         }
-        if($this->redirpage) {
-            $rdf .= "    <owl:sameAs rdf:resource=\"" . clean($this->redirpage) . "\"/>\n";
-            $rdf .= "    <rdfs:seeAlso rdf:resource=\"" .
-                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki=' . $this->redirpage);
-            if($this->api) {
-                $rdf .= clean("&api=" . $this->api);
+        if ($this->redirpage) {
+            $rdf .= "    <owl:sameAs rdf:resource=\"".clean($this->redirpage)."\"/>\n";
+            $rdf .= "    <rdfs:seeAlso rdf:resource=\"".
+                clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->redirpage);
+            if ($this->api) {
+                $rdf .= clean("&api=".$this->api);
             }
             $rdf .= "\"/>\n";
         }
 
-        $rdf .= "</" . $this->_type . ">\n";
+        $rdf .= "</".$this->_type.">\n";
         return $rdf;
     }
 }
@@ -1150,7 +1150,7 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = '<' . $this->type . " rdf:about=\"" . clean($this->url) . "\"/>\n";
+        $rdf = '<'.$this->type." rdf:about=\"".clean($this->url)."\"/>\n";
         return $rdf;
     }
 }
@@ -1171,7 +1171,7 @@ 
     }
 
     public function getContent(&$exp): string {
-        $rdf = '<' . $this->type . " rdf:about=\"" . clean($this->url) . "\"/>\n";
+        $rdf = '<'.$this->type." rdf:about=\"".clean($this->url)."\"/>\n";
         return $rdf;
     }
 }
@@ -1181,13 +1181,13 @@ 
  *
  * Transforms text so that it can be safely put into XML markup
  */
-if(!function_exists('clean')) {
+if (!function_exists('clean')) {
     function clean($text, $url = false) {
 #    return htmlentities( $text );
 #    return htmlentities2( $text );
         // double encoding is preventable now
         // $text = htmlspecialchars_decode($text, ENT_COMPAT);
-        if($url) {
+        if ($url) {
             $text = str_replace('&amp;', '&', $text);
         }
         return htmlspecialchars($text, ENT_COMPAT, 'UTF-8');
@@ -1199,7 +1199,7 @@ 
  *
  * Same a HTMLEntities, but avoids double-encoding of entities
  */
-if(!function_exists('htmlentities2')) {
+if (!function_exists('htmlentities2')) {
     function htmlentities2($myHTML) {
         $translation_table          = get_html_translation_table(HTML_ENTITIES, ENT_QUOTES);
         $translation_table[chr(38)] = '&';
@@ -1216,7 +1216,7 @@ 
  *
  * Prepares text-only representation of HTML content
  */
-if(!function_exists('pureContent')) {
+if (!function_exists('pureContent')) {
     function pureContent($content) {
         // Remove HTML tags
         // May add more cleanup code later, if validation errors are found