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xml_parser_create

19-Apr-2006 07:42


I'd also recommend adding the option below 

xml_parser_set_option($parser,XML_OPTION_SKIP_WHITE,1);

Kim
22-Feb-2006 02:20


Actually, the XML parser DOES support more encodings.



The trick is to call $parser = xml_parser_create("");



I learned this trick from



http://tinyurl.com/2cmya (http://minutillo.com/steve/weblog/)

Tobbe
25-May-2005 06:01


The above "XML to array" code does not work properly if you have several tags on the same level and with the same name, example:



<currenterrors>

<error>

<description>This is a real error...</description>

</error>

<error>

<description>This is a second error...</description>

</error>

<error>

<description>Lots of errors today...</description>

</error>

<error>

<description>This is the last error...</description>

</error>

</currenterrors>



It will then only display the first <error>-tag.

In this case you will need to number the tags automatically or maybe have several arrays for each new element.

dma05 at web dot de
27-Apr-2005 02:54


xml_parser_create () on php5 sometimes detects the wrong input format for me -- for example, sometimes when i try to parse data that has been fetched from a databse by my script and that only contains a handful of special ISO-8859-1 characters, it seems to think the input was something else and xml_parse() chokes on things like umlauts.



the only reason i was able to figure out so far would be that -- unlike my data files -- the xml data generated by my script doesn't contain the <?xml  [...] encoding="..." ?> definition. every data source with that definition seemed just fine; it's kinda odd that it worked *sometimes* without it *shrugs*.

no matter what the reason, using utf8_encode () on the string made it work, and prepending '<?xml version="1.0" encoding="ISO-8859-1" ?>' worked as well.



this problem shouldn't occur in php4, since there you would specify the input encoding along with the output encoding.

php at stock-consulting dot com
21-Feb-2005 02:47


Even though I passed "UTF-8" as encoding type PHP (Version 4.3.3) did *not* treat the input file as UTF-8. The input file was missing the BOM header bytes (which may indeed be omitted, according to RFC3629...but things are a bit unclear there. The RFC seems to make mere recommendations concering the BOM header). If you want to sure that PHP treats an UTF-8 encoded file correctly, make sure that it begins with the corresponding 3 byte BOM header (0xEF 0xBB 0xBF)

jcalvert at gmx dot net
03-Apr-2004 10:39


To maintain compatibility between PHP4 and PHP5 you should always pass a string argument to this function. PHP4 autodetects the format of the input if you leave it out whereas PHP5 will assume the format to be ISO-8859-1 (and choke on the byte order marker of UTF-8 files).



Calling the function as <?php $res = xml_parser_create('') ?> will cause both versions of PHP to autodetect the format.

annettetruong at yahoo dot com
26-Mar-2004 10:21


Good article explaining how to use PHP to parse an XML RSS feed:



http://www.sitepoint.com/article/php-xml-parsing-rss-1-0/2

mmustafa at vsnl dot com
05-Jan-2004 10:00


thought I'd share this small piece of PHP code that prepares a proper array from XML Data 

(uses xml_parse_into_struct to get a raw array)

features : 1) can easily adjust to multiple levels 2) simple.



<code>



$file = "data.xml";

$xml_parser = xml_parser_create();



if (!($fp = fopen($file, "r"))) {

    die("could not open XML input");

}



$data = fread($fp, filesize($file));

fclose($fp);

xml_parse_into_struct($xml_parser, $data, $vals, $index);

xml_parser_free($xml_parser);



$params = array();

$level = array();

foreach ($vals as $xml_elem) {

  if ($xml_elem['type'] == 'open') {

    if (array_key_exists('attributes',$xml_elem)) {

      list($level[$xml_elem['level']],$extra) = array_values($xml_elem['attributes']);

    } else {

      $level[$xml_elem['level']] = $xml_elem['tag'];

    }

  }

  if ($xml_elem['type'] == 'complete') {

    $start_level = 1;

    $php_stmt = '$params';

    while($start_level < $xml_elem['level']) {

      $php_stmt .= '[$level['.$start_level.']]';

      $start_level++;

    }

    $php_stmt .= '[$xml_elem[\'tag\']] = $xml_elem[\'value\'];';

    eval($php_stmt);

  }

}



echo "<pre>";

print_r ($params);

echo "</pre>";



</code>



Example : 

I/P XML ...



<country id="ZZ">

<name>My Land</name>

<location>15E</location>

<area>40000</area>



    <state1>

<name>Hi State</name>

<area>1000</area>

<population>2000</population>



    <city1>

<location>13E</location>

<population>500</population>

<area>500</area>

</city1>



    <city2>

<location>13E</location>

<population>500</population>

<area>5000</area>

</city2>

</state1>



    <state2>

<name>Low State</name>

<area>3000</area>

<population>20000</population>



    <city1>

<location>15E</location>

<population>5000</population>

<area>1500</area>

</city1>

</state2>

</country>



O/P Array :

Array

(

    [ZZ] => Array

        (

            [NAME] => My Land

            [LOCATION] => 15E

            [AREA] => 40000

            [STATE1] => Array

                (

                    [NAME] => Hi State

                    [AREA] => 1000

                    [POPULATION] => 2000

                    [CITY1] => Array

                        (

                            [LOCATION] => 13E

                            [POPULATION] => 500

                            [AREA] => 500

                        )



                    [CITY2] => Array

                        (

                            [LOCATION] => 13E

                            [POPULATION] => 500

                            [AREA] => 5000

                        )



                )



            [STATE2] => Array

                (

                    [NAME] => Low State

                    [AREA] => 3000

                    [POPULATION] => 20000

                    [CITY1] => Array

                        (

                            [LOCATION] => 15E

                            [POPULATION] => 5000

                            [AREA] => 1500

                        )



                )



        )



)

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xml_parser_create

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