News feed webpage ?

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  • John
    #1

    News feed webpage ?

    Hi everyone !

    I am a newbie to this newsgroup. I would appreciate if someone can help
    me to solve this problem.

    OK, I am currently writing a webpage in PHP that will get RSS file(XML
    file) (news feed) and parse it using PHP and display articles' link and
    description. I want everytime a user click on one article's link, it
    take the user to another page which was written by me (for example,
    "display.php?ai d=43232") (I don't want user to leave my website) and
    pass the article ID to the URL string. Everything run fine at this
    point but I got duplicate filename on the URL
    ("display.php?a id=43232&displa y.php="). I don't know how to fix this.

    Here is the code.
    =============== === Code for RSS parsing =============== =======
    //This code was copied from the following tutorial.
    //http://www.sitepoint.c om/article/php-xml-parsing-rss-1-0

    <html>
    <head>
    <title> The core </title>
    </head>
    <body>


    <dl>
    <?php

    class RSSParser {

    var $insideitem = false;
    var $tag = "";
    var $title = "";
    var $description = "";
    var $link = "";


    function startElement($p arser, $tagName, $attrs) {
    if ($this->insideitem) {
    $this->tag = $tagName;
    } elseif ($tagName == "ITEM") {
    $this->insideitem = true;
    }
    }

    function endElement($par ser, $tagName) {
    if ($tagName == "ITEM") {

    printf("<dt><b> <a href='%s'>%s</a></b></dt>",
    trim($this->link),htmlspec ialchars(trim($ this->title)));

    printf("<dd>%s</dd>",htmlspecia lchars(trim($th is->description))) ;
    $this->title = "";
    $this->description = "";
    $this->link = "";
    $this->insideitem = false;

    }
    }

    function characterData($ parser, $data) {
    if ($this->insideitem) {
    switch ($this->tag) {
    case "TITLE":
    $this->title .= $data;
    break;
    case "DESCRIPTIO N":
    $this->description .= $data;
    break;
    //edit the link here
    case "LINK":
    {
    //$this->link .= $data
    $id = $this->newLink($data) ;
    $this->link .= "display.php?ai d="."$id&";
    break;
    }
    }
    }
    }


    function newLink($newsli nk)
    {
    $file_name = basename($newsl ink, ".php");
    $id = ereg_replace("[^0-9]", "", $file_name);

    return $id;
    }


    }

    $xml_parser = xml_parser_crea te();
    $rss_parser = new RSSParser();
    xml_set_object( $xml_parser,&$r ss_parser);
    xml_set_element _handler($xml_p arser, "startEleme nt", "endElement ");
    xml_set_charact er_data_handler ($xml_parser, "characterData" );
    $fp = fopen("http://www.prweb.com/rss2/computers.xml", "r")
    or die("Error reading RSS data.");
    while ($data = fread($fp, 4096))
    xml_parse($xml_ parser, $data, feof($fp))
    or die(sprintf("XM L error: %s at line %d",
    xml_error_strin g(xml_get_error _code($xml_pars er)),
    xml_get_current _line_number($x ml_parser)));
    fclose($fp);
    xml_parser_free ($xml_parser);

    ?>
    </dl>
    </body>
    </html>

    =============== =============== =============== ====

    ========= Code for display.php =========
    <?php

    echo "<h1>Displa y news </h1>";

    $id = $_GET["aid"];

    $baseLink = "http://www.prweb.com/printer.php?pri d=";

    include($baseLi nk.$id);

    ?>
    =============== =============== ==========

    Thank you in advance .

    John Lam

    Tags: None
    • Janwillem Borleffs
      #2
      Re: News feed webpage ?

      John wrote:[color=blue]
      > OK, I am currently writing a webpage in PHP that will get RSS
      > file(XML file) (news feed) and parse it using PHP and display
      > articles' link and description. I want everytime a user click on one
      > article's link, it take the user to another page which was written by
      > me (for example, "display.php?ai d=43232") (I don't want user to leave
      > my website) and pass the article ID to the URL string. Everything run
      > fine at this point but I got duplicate filename on the URL
      > ("display.php?a id=43232&displa y.php="). I don't know how to fix this.
      >[/color]

      The feed is indented, which creates so called text nodes between the
      elements.

      To skip these nodes on a non-Windows environment, you can apply:

      xml_parser_set_ option($xml_par ser, XML_OPTION_SKIP _WHITE, 1);

      When you are working on a Windows box, you can do something like:

      case "LINK" && trim($data): {
      ...
      }


      JW



        Comment

        • Janwillem Borleffs
          #3
          Re: News feed webpage ?

          Janwillem Borleffs wrote:[color=blue]
          > When you are working on a Windows box, you can do something like:
          >
          > case "LINK" && trim($data): {
          > ...
          > }
          >[/color]

          In this case, you should assign the value to the $this->link variable,
          rather then concatenate it:

          case "LINK" && trim($data): {
          $id = $this->newLink($data) ;
          $this->link = "display.php?ai d=$id";
          break;
          }


          JW



            Comment

            • Marcin Dobrucki
              #4
              Re: News feed webpage ?

              John wrote:
              [color=blue]
              > OK, I am currently writing a webpage in PHP that will get RSS file(XML
              > file) (news feed) and parse it using PHP and display articles' link and
              > description.[/color]

              Any reason not to use the existing code:
              Manual :: XML_RSS
              http://pear.php.net/manual/en/package.xml.xml-rss.php


              /Marcin

                Comment

                • John
                  #5
                  Re: News feed webpage ?

                  Great help. It works. Thanks everyone !

                  John Lam

                    Comment

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