Parse zipped (gz) xml file with php issues

[lleemon]

I have a file that is ftp'd to my root and it's in .gz format. I need to uncompress and read/parse xml string. I run and it bombs on fopen. Is there a different way of doing it?

zdemo.php

<?php
$feed_max = 2;
$topheader = "News";
$feed_path = dirname(__FILE__) . "\Catalog_1.xml.gz";
include('rss.php'); 
?>

rss.php

<div class="rss">
<h5><?php echo $topheader; ?></h5>
<?php

//set a max value of 3 listings if variable is empty
if (empty($feed_max)){
    $feed_max=3;
}

$ip=$_SERVER['REMOTE_ADDR'];
$file = $feed_path;

$map_array = array(
   "BOLD"    => "B",
   "EMPHASIS" => "I",
   "LITERAL"  => "TT"
);

$current = "";
$sLink = "";
$sSiteHost = "";
$sDescription = "";
$sTitle = "";
$GLOBALS['iStart'] = 0;
$GLOBALS['iRowCount'] = 0;
$GLOBALS['ifeed_max'] = $feed_max;

function startElement_mioutdoor($parser, $name, $attrs)
{
    $name = strtoupper($name);
   global $current;
   $current = $name;
   if ($name == "ITEM") { echo "<p>"; }
   if ($name == "LISTING") { echo ""; } 
   if ($name == "TITLE") { echo ""; }
   if ($name == "DESCRIPTION") { echo ""; }
   if ($name == "PUBDATE") { echo ""; $GLOBALS['iStart'] = 1; }
}

function endElement_mioutdoor($parser, $name)
{
   $name = strtoupper($name);
   if ($name == "DESCRIPTION") { echo ""; }
   if ($name == "LISTING") { echo ""; }
   if ($name == "TITLE") { echo ""; }
    
   if ($GLOBALS['iStart'] == 1) {
       if ($GLOBALS['iRowCount']  < $GLOBALS['ifeed_max']) {
           if ($name == "ITEM") {echo "<p><a href=\"" . $GLOBALS['sLink'] . "\" target=\"_blank\">" . $GLOBALS['sTitle'] . "</a><br />" . $GLOBALS['sDescription'] . "</p>"; $GLOBALS['sTitle'] = ""; $GLOBALS['sDescription'] = ""; $GLOBALS['iRowCount'] ++;
           }
        }
       }
    if ($name == "ITEM") { echo "</p>"; }
}

function characterData_mioutdoor($parser, $data)
{
   global $current;
   if (!(ord($data) == 10)){
           if ($GLOBALS['iStart'] == 1) {
           if ($current == "TITLE") { $GLOBALS['sTitle'] .= $data; }
           if ($current == "DESCRIPTION") { $GLOBALS['sDescription'] .= $data; } 
           if ($current == "LINK") { $GLOBALS['sLink'] = $data; }
           if ($current == "URL") { $GLOBALS['sSiteHost'] = $data; }
       }
   }
}

$xml_parser = xml_parser_create();
// use case-folding so we are sure to find the tag in $map_array
xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, true);
xml_set_element_handler($xml_parser, "startElement_mioutdoor", "endElement_mioutdoor");
xml_set_character_data_handler($xml_parser, "characterData_mioutdoor");

//NEW LINE TO TAKE .gz FILE AND UNPACK
$file = gzfile_get_contents($file);

//THIS IS WHERE IT'S ERRORING
if (!($fp = fopen($file, "r"))) {
   die("could not open XML input");
}


while ($data = fread($fp, 4096)) {
   $data = convToUtf8($data);
   if (!xml_parse($xml_parser, $data, feof($fp))) {
       die(sprintf("XML error: %s at line %d",
                   xml_error_string(xml_get_error_code($xml_parser)),
                   xml_get_current_line_number($xml_parser)));
   }
}


xml_parser_free($xml_parser);


function gzfile_get_contents($filename, $use_include_path = 0)
{
    //File does not exist
    if( !@file_exists($filename) )
    {    return false;    }
   
    //Read and imploding the array to produce a one line string
   $data = gzfile($filename, $use_include_path);
   $data = implode($data);  
   
   return $data;
}



?>
</div>

Result of running zdemo.php

Warning: fopen(<?xml version="1.0" e........ in D:\www\domain.us\httpdocs\rss.php
could not open XML input

Catalog_1.xml.gz (partial)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE product_catalog SYSTEM "http://www.cj.com/downloads/tech/dtd/product_catalog_1_1.dtd">

<catalog>
<product>
<programname>U.S. Cavalry Affiliate Program</programname>

<programurl>http://www.uscav.com</programurl>
<catalogname>Product Catalog 1</catalogname>
<lastupdated>02/04/2009</lastupdated>
<name>FOX&amp;reg; Response Vest</name>
<keywords>Response Vests AH1004 AE1004 AA1004 AH AE AA 1004 aj aj1004 Law Enforcement Protective Gear Black HKC1004 JBC1004 JBC 1004 JFC1004 JFC 1004 HKC1004 HKC 1004 JFC1004 JFC 1004 JLC1004 JLC 1004 lbv LBV LBV kdm1004 kdm 1004 kdl1004 kdl 1004 KDF1004 KDF 1004 LGC LGC1004 LKG1004 LKC1004 fox military gear</keywords>
<description>4 mag pockets, 2 utility pockets, and snap loops for hook-up to a pistol belt.</description>
<sku>1004</sku>
<manufacturer>FOX OUTDOOR PRODUCTS</manufacturer>

<manufacturerid>1</manufacturerid>
<currency>USD</currency>
<price>30.99</price>
<buyurl>http://www.dpbolvw.net/click-3594573-10273726?url=http%3A%2F%2Fwww.uscav.com%2Fproductinfo.aspx%3FTabID%3D548%26productid%3D5287%26cm_mmc%3DCJ-_-Affiliate-_-ProductCatalog-_-1004</buyurl>
<impressionurl>http://www.ftjcfx.com/image-3594573-10273726</impressionurl>
<imageurl>http://www.uscav.com/prodinfo/images/1004.jpg</imageurl>
<instock>YES</instock>
</product>
</catalog>

[kows]

I have a hunch that you didn't write any of this code.

the function you have there, gzfile_get_contents(), returns the contents of the gzipped file. it doesn't return a filename that you can open. you only need to parse it from then on.

[lleemon]

You got a hunch ey? Well, yes I did find most of the functions online is true but using them to work for me, yes I did make modifications to them. And yes your pretty good, gzfile_get_contents does what you say and I believe if you look at the code I entered it also said this, maybe instead of blasting me you should provide a positive response that helps everyone.

Yes, I figured it out. Here is my changed rss file that has mostly copied functions but slight modifications to work for me.

rss.php

<div class="rss">
<h5><?php echo $topheader; ?></h5>
<?php
//set a max value of 3 listings if variable is empty
if (empty($feed_max)){
    $feed_max=3;
}


$ip=$_SERVER['REMOTE_ADDR'];

$file = $feed_path;

$map_array = array(
   "BOLD"    => "B",
   "EMPHASIS" => "I",
   "LITERAL"  => "TT"
);

$current = "";
$sName = "";
$sDescription = "";
$sPrice = "";
$sBuyUrl = "";
$sImageUrl = "";
$sInStock = "";
$GLOBALS['iStart'] = 0;
$GLOBALS['iRowCount'] = 0;
$GLOBALS['ifeed_max'] = $feed_max;

//XML FILE FORMAT
/*
<catalog>
<product>
<programname>U.S. ..</programname>
<programurl>http://www...</programurl>
<catalogname>Product ..</catalogname>
<lastupdated>02/04/2009</lastupdated>
<name>FOX..</name>
<keywords>Response ..</keywords>
<description>4 mag ...</description>
<sku>1004</sku>
<manufacturer>FOX ..</manufacturer>
<manufacturerid>1</manufacturerid>
<currency>USD</currency>
<price>30.99</price>
<buyurl>http://www....</buyurl>
<impressionurl>http://www.ftjcfx....</impressionurl>
<imageurl>http://www.uscav....</imageurl>
<instock>YES</instock>
</product>
</catalog>

*/


function startElement_mioutdoor($parser, $name, $attrs)
{
    //IS FIRST THING CALLED FOR EACH ROW AND $name IS NODE NAME
    $name = strtoupper($name);
   global $current;
   $current = $name;
   if ($name == "PRODUCT") { echo ""; $GLOBALS['iStart'] = 1; }    
}

function endElement_mioutdoor($parser, $name)
{
    //IS CALLED AFTER characterData_mioutdoor AND $name IS NODE NAME
   $name = strtoupper($name);
    
   if ($GLOBALS['iStart'] == 1) {   
       if ($GLOBALS['iRowCount']  < $GLOBALS['ifeed_max']) {
           if ($name == "INSTOCK") {echo "<p><a href=\"" . $GLOBALS['sBuyurl'] . "\" target=\"_blank\">" . $GLOBALS['sName'] . "</a><br />" . $GLOBALS['sDescription'] . "<br />Price: $" . $GLOBALS['sPrice'] . "<br />InStock: <strong>" . $GLOBALS['sInstock']  . "</strong><br /><img src='" . $GLOBALS['sImageurl'] . "'></p>"; 
           
           //CLEAR VARIABLES       
           $GLOBALS['sName'] = ""; 
           $GLOBALS['sDescription'] = ""; 
           $GLOBALS['sPrice'] = "";
           $GLOBALS['sBuyurl'] = "";
           $GLOBALS['sImageurl'] = "";
           $GLOBALS['sInstock'] = "";
           
           //Increase row count
           $GLOBALS['iRowCount'] ++;
           }
        }
       }
}

function characterData_mioutdoor($parser, $data)
{
    //IS CALLED AFTER characterData_mioutdoor AND $name IS NODE NAME
    
   global $current;
   
   
           if ($GLOBALS['iStart'] == 1) {
            //echo "current: " . $current . " data: " . $data . "=" . ord($data) . "<br />";
           if ($current == "NAME") { $GLOBALS['sName'] .= $data; }
           if ($current == "DESCRIPTION") { $GLOBALS['sDescription'] .= $data; } 
           if ($current == "PRICE") { $GLOBALS['sPrice'] .= $data; }
           if ($current == "BUYURL") { $GLOBALS['sBuyurl'] .= $data; }
           if ($current == "IMAGEURL") { $GLOBALS['sImageurl'] .= $data; }
           if ($current == "INSTOCK") { $GLOBALS['sInstock'] .= $data; }
       }
}

$xml_parser = xml_parser_create();
// use case-folding so we are sure to find the tag in $map_array
xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, true);
xml_set_element_handler($xml_parser, "startElement_mioutdoor", "endElement_mioutdoor");
xml_set_character_data_handler($xml_parser, "characterData_mioutdoor");
$data = gzfile_get_contents($file);
if (!xml_parse($xml_parser, $data)) {
       die(sprintf("XML error: %s at line %d",
                   xml_error_string(xml_get_error_code($xml_parser)),
                   xml_get_current_line_number($xml_parser)));
   }


xml_parser_free($xml_parser);




function gzfile_get_contents($filename, $use_include_path = 0)
{
    //File does not exist
    if( !@file_exists($filename) )
    {    return false;    }
   
    //Read and imploding the array to produce a one line string
   $data = gzfile($filename, $use_include_path);
   $data = implode($data);
   
   $dstName = dirname(__FILE__) . "\test.xml";
   
   return $data;
}

?>
</div>

[kows]

maybe instead of blasting me you should provide a positive response that helps everyone

I was not "blasting" you, and my response was not as negative as you're making it out to be. I thought it was quite neutral; my statement about my hunch was just that -- a statement.

I believe if you look at the code I entered it also said this

Almost none of the code you posted is commented, so no -- it does not say this anywhere.

Basically, if you're trying to learn something you should learn what the functions you're using are doing, so that you actually understand how they work and why they work. I told you how the function you had worked, which I hope was beneficial to you. When you see a function and you don't know how it works, search for it on PHP.net.