tweeper.php: make jsonToXml() a static method

[tweeper.git] / tweeper.php

diff --git a/tweeper.php b/tweeper.php
index f7d619e..f475856 100644 (file)
--- a/tweeper.php
+++ b/tweeper.php
@@ -164,7 +164,7 @@ class Tweeper {
   /**
    * Mimic the message from libxml.c::php_libxml_ctx_error_level()
    */
-  private function logXmlError($error) {
+  private static function logXmlError($error) {
     $output = "";
 
     switch ($error->level) {
@@ -205,7 +205,7 @@ class Tweeper {
       return NULL;
     }
 
-    $stylesheet_contents = $this->getUrlContents($stylesheet);
+    $stylesheet_contents = Tweeper::getUrlContents($stylesheet);
 
     $xslDoc = new DOMDocument();
     $xslDoc->loadXML($stylesheet_contents);
@@ -221,7 +221,7 @@ class Tweeper {
   /**
    * Convert json to xml.
    */
-  private function jsonToXml($json, $root_node_name) {
+  private static function jsonToXml($json, $root_node_name) {
     // Apparently the ObjectNormalizer used afterwards is not able to handle
     // the stdClass object created by json_decode() with the default setting
     // $assoc = false; so use $assoc = true.
@@ -261,7 +261,7 @@ class Tweeper {
       return NULL;
     }
 
-    return $this->jsonToXml($matches[1], 'instagram');
+    return Tweeper::jsonToXml($matches[1], 'instagram');
   }
 
   /**
@@ -293,7 +293,7 @@ class Tweeper {
     }
 
     foreach (libxml_get_errors() as $xml_error) {
-      $this->logXmlError($xml_error);
+      Tweeper::logXmlError($xml_error);
     }
     libxml_clear_errors();
     libxml_use_internal_errors($xml_errors_value);
@@ -319,7 +319,7 @@ class Tweeper {
       return NULL;
     }
 
-    $html = $this->getUrlContents($src_url);
+    $html = Tweeper::getUrlContents($src_url);
     if (FALSE === $html) {
       return NULL;
     }