[RESOLVED] XML Parsing

Shawazi

I found a tutorial showing how to parse XML coming from a file with the following code:

$fp = fopen("http://www.sitepoint.com/rss.php","r") 
     or die("Error reading RSS data."); 

// Read the XML file 4KB at a time 
while ($data = fread($fp, 4096)) 
   // Parse each 4KB chunk with the XML parser created above 
   xml_parse($xml_parser, $data, feof($fp)) 
       // Handle errors in parsing 
       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 the XML file 
fclose($fp);

I am getting my XML from cURL and is putting all of the XML into a variable $text. How do I modify this code to read from a variable instead of file successfully?

hitman6003

I think you can do:


   // Parse with the XML parser created above
   xml_parse($xml_parser, $text) 
       // Handle errors in parsing
       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)));

But, I'm not sure, as I have very little experience with php's xml functions.

Shawazi

I get "XML error: Reserved XML Name at line 3". Without the third value though there is no end point. I need to set it to true and read through the variable one piece at a time or something along those lines I think. I am very unsure.

hitman6003

do you have an instance of the xml parser running?

Shawazi

// Create an XML parser 
$xml_parser = xml_parser_create(); 

// Set the functions to handle opening and closing tags 
xml_set_element_handler($xml_parser, "startElement", "endElement"); 

// Set the function to handle blocks of character data 
xml_set_character_data_handler($xml_parser, "characterData");

was at the top.

I actually just got it working

        // create parser object 
        $xml_parser = xml_parser_create(); 

    // set up some options and handlers 
    xml_parser_set_option($xml_parser,XML_OPTION_CASE_FOLDING,0); 
    xml_set_element_handler($xml_parser, "startElement", "endElement"); 
    xml_set_character_data_handler($xml_parser, "characterData"); 
    if (!xml_parse($xml_parser, $data, TRUE)) { 
        sprintf("XML error: %s at line %d", 
        xml_error_string(xml_get_error_code($xml_parser)), 
        xml_get_current_line_number($xml_parser)); 
    } 

    // we are done with the parser, so let's free it 
    xml_parser_free($xml_parser);

$data is the variable and it's reading through it fine. I'm not sure how exactly as I had just fooled around with working code from another script. But it is doing the job so now I can parse whatever thankfully.