122 lines
3.2 KiB
PHP
122 lines
3.2 KiB
PHP
<?php
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/* vim: set noexpandtab tabstop=2 softtabstop=2 shiftwidth=2: */
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/**
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* Builds an easy structured array out of a xml file.
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* Element names will be the keys and the data the values.
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*
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* Updated by Xymph
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*/
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class Examsly {
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var $data;
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var $struct;
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var $parser;
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var $stack;
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var $utf8enc;
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/**
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* Parses a XML structure into an array.
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*/
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function parseXml($source, $isfile = true, $utf8enc = false) {
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// clear last results
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$this->stack = array();
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$this->struct = array();
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$this->utf8enc = $utf8enc;
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// create the parser
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$this->parser = xml_parser_create();
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xml_set_object($this->parser, $this);
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xml_set_element_handler($this->parser, 'openTag', 'closeTag');
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xml_set_character_data_handler($this->parser, 'tagData');
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// load the xml file
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if ($isfile)
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$this->data = @file_get_contents($source);
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else
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$this->data = $source;
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// escape '&' characters
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$this->data = str_replace('&', '<![CDATA[&]]>', $this->data);
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// parse xml file
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$parsed = xml_parse($this->parser, $this->data);
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// display errors
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if (!$parsed) {
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$code = xml_get_error_code($this->parser);
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$err = xml_error_string($code);
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$line = xml_get_current_line_number($this->parser);
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trigger_error("[XML Error $code] $err on line $line", E_USER_WARNING);
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return false;
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}
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return $this->struct;
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}
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private function openTag($parser, $name, $attributes) {
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$this->stack[] = $name;
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$this->struct[$name] = '';
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}
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private function tagData($parser, $data) {
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if (trim($data)) {
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$index = $this->stack[count($this->stack)-1];
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// use raw, don't decode '+' into space
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if ($this->utf8enc)
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$this->struct[$index] .= rawurldecode($data);
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else
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$this->struct[$index] .= utf8_decode(rawurldecode($data));
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}
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}
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private function closeTag($parser, $name) {
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if (count($this->stack) > 1) {
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$from = array_pop($this->stack);
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$to = $this->stack[count($this->stack)-1];
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$this->struct[$to][$from][] = $this->struct[$from];
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unset($this->struct[$from]);
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}
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}
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/**
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* Parses an array into an XML structure.
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*/
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function parseArray($array) {
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$xmlstring = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>';
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$xmlstring .= $this->parseArrayElements($array);
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return $xmlstring;
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}
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private function parseArrayElements($array, $opt_tag = '') {
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// read each element of the array
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for ($i = 0; $i < count($array); $i++) {
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// check if array is associative
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if (is_numeric(key($array))) {
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$xml .= '<'.$opt_tag.'>';
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if (is_array(current($array))) {
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$xml .= $this->parseArrayElements(current($array), key($array));
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} else {
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// use raw, don't encode space into '+'
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$xml .= rawurlencode(utf8_encode(current($array)));
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}
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$xml .= '</'.$opt_tag.'>';
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} else {
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if (is_array(current($array))) {
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$xml .= $this->parseArrayElements(current($array), key($array));
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} else {
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$xml .= '<'.key($array).'>';
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// use raw, don't encode space into '+'
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$xml .= rawurlencode(utf8_encode(current($array)));
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$xml .= '</'.key($array).'>';
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}
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}
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next($array);
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}
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return $xml;
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}
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}
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?>
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