106 lines
2.7 KiB
PHP
106 lines
2.7 KiB
PHP
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<?
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# This should one day become the XML->(X)HTML parser
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# Based on work by Jan Hidders and Magnus Manske
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// the base class for an element
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class element {
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var $name = "";
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var $attrs = array();
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var $children = array();
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function myPrint() {
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echo "<UL>";
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echo "<LI> <B> Name: </B> $this->name";
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// print attributes
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echo "<LI> <B> Attributes: </B>";
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foreach ($this->attrs as $name => $value) {
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echo "$name => $value; " ;
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}
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// print children
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foreach ($this->children as $child) {
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if ( is_string($child) ) {
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echo "<LI> $child";
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} else {
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$child->myPrint();
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}
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}
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echo "</UL>";
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}
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}
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$ancStack = array(); // the stack with ancestral elements
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// Three global functions needed for parsing, sorry guys
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function wgXMLstartElement($parser, $name, $attrs) {
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global $ancStack, $rootElem;
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$newElem = new element;
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$newElem->name = $name;
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$newElem->attrs = $attrs;
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array_push($ancStack, $newElem);
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// add to parent if parent exists
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$nrAncs = count($ancStack)-1;
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if ( $nrAncs > 0 ) {
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array_push($ancStack[$nrAncs-1]->children, &$ancStack[$nrAncs]);
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} else {
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// make extra copy of root element and alias it with the original
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array_push($ancStack, &$ancStack[0]);
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}
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}
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function wgXMLendElement($parser, $name) {
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global $ancStack, $rootElem;
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// pop element of stack
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array_pop($ancStack);
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}
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function wgXMLcharacterData($parser, $data) {
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global $ancStack, $rootElem;
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$data = trim ( $data ) ; // Don't add blank lines, they're no use...
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// add to parent if parent exists
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if ( $ancStack && $data != "" ) {
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array_push($ancStack[count($ancStack)-1]->children, $data);
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}
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}
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# Here's the class that generates a nice tree
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class xml2php {
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function &scanFile( $filename ) {
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global $ancStack;
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$ancStack = array();
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$xml_parser = xml_parser_create();
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xml_set_element_handler($xml_parser, "wgXMLstartElement", "wgXMLendElement");
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xml_set_character_data_handler($xml_parser, "wgXMLcharacterData");
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if (!($fp = fopen($filename, "r"))) {
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die("could not open XML input");
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}
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while ($data = fread($fp, 4096)) {
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if (!xml_parse($xml_parser, $data, feof($fp))) {
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die(sprintf("XML error: %s at line %d",
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xml_error_string(xml_get_error_code($xml_parser)),
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xml_get_current_line_number($xml_parser)));
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}
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}
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xml_parser_free($xml_parser);
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// return the remaining root element we copied in the beginning
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return $ancStack[0];
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}
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}
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$w = new xml2php;
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$filename = 'sample.xml';
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$result = $w->scanFile( $filename );
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$result->myPrint();
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return 0;
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?>
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