/**
* debug utility method
*
* @param XMLReader $reader
* @param bool $return (optional) prints by default but can return string
* @return string|null
*/
public static function dump(XMLReader $reader, $return = FALSE)
{
$node = new self($reader);
$nodeType = $reader->nodeType;
$nodeName = $node->getNodeTypeName();
$extra = '';
if ($reader->nodeType === XMLReader::ELEMENT) {
$extra = '<' . $reader->name . '> ';
$extra .= sprintf("(isEmptyElement: %s) ", $reader->isEmptyElement ? 'Yes' : 'No');
}
if ($reader->nodeType === XMLReader::END_ELEMENT) {
$extra = '</' . $reader->name . '> ';
}
if ($reader->nodeType === XMLReader::ATTRIBUTE) {
$str = $reader->value;
$len = strlen($str);
if ($len > 20) {
$str = substr($str, 0, 17) . '...';
}
$str = strtr($str, array("\n" => '\\n'));
$extra = sprintf('%s = (%d) "%s" ', $reader->name, strlen($str), $str);
}
if ($reader->nodeType === XMLReader::TEXT || $reader->nodeType === XMLReader::WHITESPACE || $reader->nodeType === XMLReader::SIGNIFICANT_WHITESPACE) {
$str = $reader->readString();
$len = strlen($str);
if ($len > 20) {
$str = substr($str, 0, 17) . '...';
}
$str = strtr($str, array("\n" => '\\n'));
$extra = sprintf('(%d) "%s" ', strlen($str), $str);
}
$label = sprintf("(#%d) %s %s", $nodeType, $nodeName, $extra);
if ($return) {
return $label;
}
printf("%s%s\n", str_repeat(' ', $reader->depth), $label);
return null;
}
