/**
* Adjust xml string to the proper format
* @param string $string - XML string document
* @return string - Return the string converted
*/
public static function fixXmlHeader($string)
{
$string = XmlUtil::removeBom($string);
if (strpos($string, "<?xml") !== false) {
$xmltagend = strpos($string, "?>");
if ($xmltagend !== false) {
$xmltagend += 2;
$xmlheader = substr($string, 0, $xmltagend);
if ($xmlheader == "<?xml?>") {
$xmlheader = "<?xml ?>";
}
} else {
throw new XmlUtilException("XML header bad formatted.", 251);
}
// Complete header elements
$count = 0;
$xmlheader = preg_replace("/version=([\"'][\\w\\d\\-\\.]+[\"'])/", "version=\"" . self::XML_VERSION . "\"", $xmlheader, 1, $count);
if ($count == 0) {
$xmlheader = substr($xmlheader, 0, 6) . "version=\"" . self::XML_VERSION . "\" " . substr($xmlheader, 6);
}
$count = 0;
$xmlheader = preg_replace("/encoding=([\"'][\\w\\d\\-\\.]+[\"'])/", "encoding=\"" . self::XML_ENCODING . "\"", $xmlheader, 1, $count);
if ($count == 0) {
$xmlheader = substr($xmlheader, 0, 6) . "encoding=\"" . self::XML_ENCODING . "\" " . substr($xmlheader, 6);
}
// Fix header position (first version, after encoding)
$xmlheader = preg_replace("/<\\?([\\w\\W]*)\\s+(encoding=([\"'][\\w\\d\\-\\.]+[\"']))\\s+(version=([\"'][\\w\\d\\-\\.]+[\"']))\\s*\\?>/", "<?\\1 \\4 \\2?>", $xmlheader, 1, $count);
return $xmlheader . substr($string, $xmltagend);
} else {
$xmlheader = '<?xml version="' . self::XML_VERSION . '" encoding="' . self::XML_ENCODING . '"?>';
return $xmlheader . $string;
}
}
