Now that we have created the required functions, let's continue with the meat of the code:

function parsefile($RSSfile){

  // Create an xml parser

  $xmlParser = xml_parser_create();

  // Set up element handler

  xml_set_element_handler( $xmlParser, "startTag", "endTag" );

  // Set up character handler

  xml_set_character_data_handler( $xmlParser, "TxtTag" );

  // Open connection to RSS XML file for parsing.

  $fp = fopen( $RSSfile,"r" )

    or die( "Cannot read RSS data file." );

  // Parse XML data from RSS file.

  while( $data = fread( $fp, 4096 ) ) {

    xml_parse( $xmlParser, $data, feof( $fp ) );

or die(sprintf("XML error: %s at line %d",  
           xml_error_string(xml_get_error_code($xml_parser)),  
           xml_get_current_line_number($xml_parser)));

  }

  // Close file open handler

  fclose( $fp );

  // Free xml parser from memory

  xml_parser_free( $xmlParser );

  }

The above function calls both the startTag/endTag functions to loop through the XML file and displays the contents.