* @link http://getkirby.com
* @copyright Bastian Allgeier
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
class Xml {
/**
* Converts a string to a xml-safe string
* Converts it to html-safe first and then it
* will replace html entities to xml entities
*
*
*
* echo xml::encode('some über crazy stuff');
* // output: some über crazy stuff
*
*
*
* @param string $text
* @param boolean $html True: convert to html first
* @return string
*/
static public function encode($string, $html = true) {
// convert raw text to html safe text
if($html) $text = html::encode($string, false);
// convert html entities to xml entities
return strtr($text, html::entities());
}
/**
* Removes all xml entities from a string
* and convert them to html entities first
* and remove all html entities afterwards.
*
*
*
* echo xml::decode('some über crazy stuff');
* // output: some über crazy stuff
*
*
*
* @param string $string
* @return string
*/
static public function decode($string) {
// convert xml entities to html entities
$string = strtr($string, static::entities());
return html::decode($string);
}
/**
* Parses a XML string and returns an array
*
* @param string $xml
* @return mixed
*/
static public function parse($xml) {
$xml = preg_replace('/(<\/?)(\w+):([^>]*>)/', '$1$2$3', $xml);
$xml = @simplexml_load_string($xml, null, LIBXML_NOENT);
$xml = @json_encode($xml);
$xml = @json_decode($xml, true);
return (is_array($xml)) ? $xml : false;
}
/**
* Returns a translation table of xml entities to html entities
*
* @return array
*/
static public function entities() {
return array_flip(html::entities());
}
/**
* Creates an XML string from an array
*
* @param array $array The source array
* @param string $tag The name of the root element
* @param boolean $head Include the xml declaration head or not
* @param string $charset The charset, which should be used for the header
* @param int $level The indendation level
* @return string The XML string
*/
static function create($array, $tag = 'root', $head = true, $charset = 'utf-8', $tab = ' ', $level = 0) {
$result = ($level == 0 and $head) ? '' . PHP_EOL : '';
$nlevel = ($level + 1);
$result .= str_repeat($tab, $level) . '<' . $tag . '>' . PHP_EOL;
foreach($array as $key => $value) {
$key = str::lower($key);
if(is_array($value)) {
$mtags = false;
foreach($value as $key2 => $value2) {
if(is_array($value2)) {
$result .= static::create($value2, $key, $head, $charset, $tab, $nlevel);
} elseif(trim($value2) != '') {
$value2 = (htmlspecialchars($value2) != $value2) ? '' : $value2;
$result .= str_repeat($tab, $nlevel) . '<' . $key . '>' . $value2 . '' . PHP_EOL;
}
$mtags = true;
}
if(!$mtags and count($value) > 0) {
$result .= static::create($value, $key, $head, $charset, $tab, $nlevel);
}
} elseif(trim($value) != '') {
$value = (htmlspecialchars($value) != $value) ? '' : $value;
$result .= str_repeat($tab, $nlevel) . '<' . $key . '>' . $value . '' . PHP_EOL;
}
}
return $result . str_repeat($tab, $level) . '' . PHP_EOL;
}
}