note 26836 added to ref.xml

I wanted a way to reference the XML tree by path. I couldn't find exactly what I wanted, but using examples here and on phpbuilder.com came up with this. This results in a nested associative array, so elements can be accessed in the manner: echo $ary_parsed_file['path']['to']['value']; <?php // Display the print_r() output in a readable format echo '<PRE>'; // Array to store current xml path $ary_path = array(); // Array to store parsed data $ary_parsed_file = array(); // Starting level - Set to 0 to display all levels. Set to 1 or higher // to skip a level that is common to all the fields. $int_starting_level = 1; // what are we parsing? $xml_file = 'label.xml'; // declare the character set - UTF-8 is the default $type = 'UTF-8'; // create our parser $xml_parser = xml_parser_create($type); // set some parser options xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, true); xml_parser_set_option($xml_parser, XML_OPTION_TARGET_ENCODING, 'UTF-8'); // this tells PHP what functions to call when it finds an element // these funcitons also handle the element's attributes xml_set_element_handler($xml_parser, 'startElement','endElement'); // this tells PHP what function to use on the character data xml_set_character_data_handler($xml_parser, 'characterData'); if (!($fp = fopen($xml_file, 'r'))) { die("Could not open $xml_file for parsing!\n"); } // loop through the file and parse baby! while ($data = fread($fp, 4096)) { if (!($data = utf8_encode($data))) { echo 'ERROR'."\n"; } if (!xml_parse($xml_parser, $data, feof($fp))) { die(sprintf( "XML error: %s at line %d\n\n", xml_error_string(xml_get_error_code($xml_parser)), xml_get_current_line_number($xml_parser))); } } xml_parser_free($xml_parser); // Display the array print_r($ary_parsed_file); // This function is called for every opening XML tag. We // need to keep track of our path in the XML file, so we // will use this function to add the tag name to an array function startElement($parser, $name, $attrs=''){ // Make sure we can access the path array global $ary_path; // Push the tag into the array array_push($ary_path, $name); } // This function is called for every closing XML tag. We // need to keep track of our path in the XML file, so we // will use this function to remove the last item of the array. function endElement($parser, $name, $attrs=''){ // Make sure we can access the path array global $ary_path; // Push the tag into the array array_pop($ary_path); } // This function is called for every data portion found between // opening and closing tags. We will use it to insert values // into the array. function characterData($parser, $data){ // Make sure we can access the path and parsed file arrays // and the starting level value global $ary_parsed_file, $ary_path, $int_starting_level; // Remove extra white space from the data (so we can tell if it's empty) $str_trimmed_data = trim($data); // Since this function gets called whether there is text data or not, // we need to prevent it from being called when there is no text data // or it overwrites previous legitimate data. if (!empty($str_trimmed_data)) { // Build the array definition string $str_array_define = '$ary_parsed_file'; // Add a [''] and data for each level. (Starting level can be defined.) for ($i = $int_starting_level; $i < count($ary_path); $i++) { $str_array_define .= '[\'' . $ary_path[$i] . '\']'; } // Add the value portion of the statement $str_array_define .= " = '" . $str_trimmed_data . "';"; // Evaluate the statement we just created eval($str_array_define); // DEBUG //echo "\n" . $str_array_define; } // if } ?> -- http://www.php.net/manual/en/ref.xml.php http://master.php.net/manage/user-notes.php?action=edit+26836 http://master.php.net/manage/user-notes.php?action=delete+26836 http://master.php.net/manage/user-notes.php?action=reject+26836