Php parse xml string

Question

Possible duplicate:
Best XML Parser for PHP

I have a string with XML data. How to analyze it in PHP?

Thank you

Answer 1

Try simple XML , here is an example:

do.php:

<?php $xml_str = file_get_contents('xmlfile.xml'); $xml = new SimpleXMLElement($xml_str); $items = $xml->xpath('*/item'); foreach($items as $item) { echo $item['title'], ': ', $item['description'], "\n"; } 

XMLFile.xml:

 <?xml version="1.0" encoding="UTF-8"?> <xml> <items> <item title="Hello World" description="Hellowing the world.." /> <item title="Hello People" description="greeting people.." /> </items> </xml> 

Answer 2

In situations where SimpleXML is not available, I use this function, originally posted in a comment on php.net. It works fine in 99% of cases.

 <?php /** * Convert XML to an Array * * @param string $XML * @return array */ function XMLtoArray($XML) { $xml_parser = xml_parser_create(); xml_parse_into_struct($xml_parser, $XML, $vals); xml_parser_free($xml_parser); // wyznaczamy tablice z powtarzajacymi sie tagami na tym samym poziomie $_tmp=''; foreach ($vals as $xml_elem) { $x_tag=$xml_elem['tag']; $x_level=$xml_elem['level']; $x_type=$xml_elem['type']; if ($x_level!=1 && $x_type == 'close') { if (isset($multi_key[$x_tag][$x_level])) $multi_key[$x_tag][$x_level]=1; else $multi_key[$x_tag][$x_level]=0; } if ($x_level!=1 && $x_type == 'complete') { if ($_tmp==$x_tag) $multi_key[$x_tag][$x_level]=1; $_tmp=$x_tag; } } // jedziemy po tablicy foreach ($vals as $xml_elem) { $x_tag=$xml_elem['tag']; $x_level=$xml_elem['level']; $x_type=$xml_elem['type']; if ($x_type == 'open') $level[$x_level] = $x_tag; $start_level = 1; $php_stmt = '$xml_array'; if ($x_type=='close' && $x_level!=1) $multi_key[$x_tag][$x_level]++; while ($start_level < $x_level) { $php_stmt .= '[$level['.$start_level.']]'; if (isset($multi_key[$level[$start_level]][$start_level]) && $multi_key[$level[$start_level]][$start_level]) $php_stmt .= '['.($multi_key[$level[$start_level]][$start_level]-1).']'; $start_level++; } $add=''; if (isset($multi_key[$x_tag][$x_level]) && $multi_key[$x_tag][$x_level] && ($x_type=='open' || $x_type=='complete')) { if (!isset($multi_key2[$x_tag][$x_level])) $multi_key2[$x_tag][$x_level]=0; else $multi_key2[$x_tag][$x_level]++; $add='['.$multi_key2[$x_tag][$x_level].']'; } if (isset($xml_elem['value']) && trim($xml_elem['value'])!='' && !array_key_exists('attributes', $xml_elem)) { if ($x_type == 'open') $php_stmt_main=$php_stmt.'[$x_type]'.$add.'[\'content\'] = $xml_elem[\'value\'];'; else $php_stmt_main=$php_stmt.'[$x_tag]'.$add.' = $xml_elem[\'value\'];'; eval($php_stmt_main); } if (array_key_exists('attributes', $xml_elem)) { if (isset($xml_elem['value'])) { $php_stmt_main=$php_stmt.'[$x_tag]'.$add.'[\'content\'] = $xml_elem[\'value\'];'; eval($php_stmt_main); } foreach ($xml_elem['attributes'] as $key=>$value) { $php_stmt_att=$php_stmt.'[$x_tag]'.$add.'[$key] = $value;'; eval($php_stmt_att); } } } return $xml_array; } ?> 

Answer 3

If you are familiar with the Zend Framework, pass the XML to Zend_Config_Xml

given xml like this

 $myXml = ' <?xml version="1.0" ?> <top> <var>value</var> <nested> <var>value</var> </nested> <arrayVar> <item>1</item> <item>2</item> <item>3</item> </arrayVar> </top>'; 

You can access it this way:

 $xml = new Zend_Config_Xml( $myXml ); $var = $xml->var; $nestedVar = $xml->nested->var; $arrayVar = $xml->arrayVar->toArray(); 

Zend Config XML uses simplexml and builds on this to create a nice interface that makes it easy to access the xml node you are looking for.

It loads more in the ZF manual, including ways to access attributes and some other really useful features.

http://framework.zend.com/manual/en/zend.config.adapters.xml.html

Zend Config is one of the easiest to use parts of ZF, and (I think) it is a standalone component, you can use only Zend Config and no other part of ZF