Fix PHP 8.4 deprecated warnings Github issue 6306

Author: NielBuys

system/libraries/Xmlrpc.php

@@ -1162,10 +1162,10 @@ public function parseResponse($fp)
 			'isf_reason'	=> 0
 		);
 
-		xml_set_object($parser, $this);
-		xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, TRUE);
-		xml_set_element_handler($parser, 'open_tag', 'closing_tag');
-		xml_set_character_data_handler($parser, 'character_data');
+        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
+        xml_set_element_handler($parser, [$this, 'open_tag'], [$this, 'closing_tag']);
+        xml_set_character_data_handler($parser, [$this, 'character_data']);
+
 		//xml_set_default_handler($parser, 'default_handler');
 
 		// Get headers

system/libraries/Xmlrpcs.php

@@ -244,10 +244,9 @@ public function parseRequest($data = '')
 			'method' => ''
 		);
 
-		xml_set_object($parser, $parser_object);
-		xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, TRUE);
-		xml_set_element_handler($parser, 'open_tag', 'closing_tag');
-		xml_set_character_data_handler($parser, 'character_data');
+        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
+        xml_set_element_handler($parser, [$this, 'open_tag'], [$this, 'closing_tag']);
+        xml_set_character_data_handler($parser, [$this, 'character_data']);
 		//xml_set_default_handler($parser, 'default_handler');
 
 		//-------------------------------------