domxml_open

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ardent at ahmeni dot org
07-Feb-2006 04:31


Although undocumented, domxml_open_mem does not exist in PHP5.  See this site for a quick fix:

http://alexandre.alapetite.net/doc-alex/domxml-php4-php5/index.en.html

msh at onliners dot dk
01-Mar-2005 01:51


It's always nice to see just where in the XML the error is so I've enhanced the error message example above to this:



// Read and parse dynamic PHP/XML document.

ob_start();

require($_REQUEST['page'].'.php');

$xml = ob_get_contents();

ob_end_clean();

$xmldoc = domxml_open_mem("<?xml version='1.0'  encoding='ISO-8859-1'?>".$xml, DOMXML_LOAD_PARSING, $error);

// Show error.

if(!$xmldoc) {

    // Assign each line to array.

    $arXML = explode("\n", $xml);



    echo "<pre>";

            

    foreach ($error as $errorline) {

        echo $errorline['errormessage'].

        "Node: ".$errorline['nodename']."\n".

        "Line: ".$errorline['line']."\n".

        "Column: ".$errorline['col']."\n";



        // Locate actual line number.

        $arErrorMessage = explode(' line ', $errorline['errormessage']);

        $arErrorMessage = explode(' ', $arErrorMessage[1]);

        $errorLineNumber = $arErrorMessage[0];

        

        // Show +/- 10 lines around error.

        $minErrorLineNumber = max(0, $errorLineNumber-10);

        $maxErrorLineNumber = min(sizeof($arXML), $errorLineNumber+10);

        echo "XML snip (linies: ".$minErrorLineNumber." to ".$maxErrorLineNumber."):\n";

        for($n = $minErrorLineNumber; $n < $maxErrorLineNumber; $n++)

            if($n == $errorLineNumber)

                echo "<B>".htmlentities($arXML[$n])."</B>\n";

            else 

                echo htmlentities($arXML[$n])."\n";

        echo "\n\n";

    }



    echo "</pre>";

}



This will actually render +/- 10 lines around the actual error. Hope others will find this usefull aswell.

Lian Yuen Chi <yuenqi at hotmail dot com>
08-Oct-2004 10:40


Regarding the 'magic_quotes_runtime = On' issue in XML parsing, I will suggest using the method below, for those who do not want to turn off the setting in the configuration file.



<?php



$original-magic-quotes-runtime-value = get_magic_quotes_runtime();



set_magic_quotes_runtime(0);



your-xml-parsing-codes();



set_magic_quotes_runtime($original-magic-quotes-runtime-value);



?>

heiko[dot]weber[at]softwareag[dot]com
20-Aug-2004 05:28


Careful, this function will not work with XML documents which are in UTF-16 or UTF-32 encoding and include a BOM at the beginning, so your code will need a special handling for these encodings.

Carl Wurtz
14-Jul-2004 04:01


A recursive function that parses XML into objects:





<?php





    $xmlstg = '<?xml version="1.0"?';


    $xmlstg .= '><candy><anatomically_shaped><head_to_bite_off>chocolate bunnies</head_to_bite_off><headless>gummi worms</headless></anatomically_shaped></candy>';


        


    


    $dom = domxml_open_mem($xmlstg);


    $root = $dom->document_element();


    $root->name = '$candy';


    function parse_node($node) {


        global $candy;


        if ($node->has_child_nodes()) {


            foreach($node->child_nodes() as $n) {


                if ($n->node_name() == '#text') {


                    eval("$node->name=\"" . $n->node_value() . "\";");


                }


                else {


                    $n->name = $node->name . '->' . $n->node_name();


                    parse_node($n);


                }


            }


        }


    }





    parse_node($root);


    echo $candy->anatomically_shaped->head_to_bite_off;


// echos "chocolate bunnies"





?>

voituk [on] asg [dot] kiev [dot] ua
07-Jul-2004 08:48


There is some interesting feature with "magic_quotes_runtime" ini directive and "domxml_open_mem" function.

If we have "magic_quotes_runtime=on" in out php.ini file, this code generates many warning



$xml_str = file_get_contents($xml_file));

$Document = domxml_open_mem($xml_str));



if "magic_quotes_runtime=off" all is good.

ej at campbell *dot* name
01-Dec-2003 11:54


The DOM XML parser does not automatically free memory when a DomDocument goes out of scope.



If you're using the DOM parser to parse several XML files as part of a long running script, you must free the DomDocument manually or a memory leak will occur.



To free a DOM document allocated by domxml_open_mem, do the following:



$doc = domxml_open_mem("$contents");



$doc->free();

chris at schaake dot nu
02-Nov-2003 02:20


Finally figured out the error handling. The sample below will give a nice error message. Should also work for domxml_open_file.



<?

# Small sample xml file with 2 errors

#     1. root tag not closed

#    2. Missing ; in &amp;

$xml = "<root>&amp";



$xmldoc = @domxml_open_mem($xml,DOMXML_LOAD_PARSING,$error);



echo "<pre>";    # Just for nice layout

foreach ($error as $errorline) {    # Loop through all errors

    echo $errorline['errormessage'];

    echo " Node   : " . $errorline['nodename'] . "\n";

    echo " Line   : " . $errorline['line'] . "\n";

    echo " Column : " . $errorline['col'] . "\n\n";

}



?>

jon at hiveminds dot net
17-Oct-2003 01:10


You can also create a new DomDocument instance by calling its constructor:



<?php

  $doc = new DomDocument($xml);

?>



where $xml is any string of well-formed XML.

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domxml_open_mem

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