A PHP script to compare \EasyRdf\XMLParser with 'XML Parser' (expat)

xml_parser_test.php

<?php

require_once realpath(__DIR__)."/vendor/autoload.php";

$xml = <<<'EOD'
<root>
  <one a="1" b="2">one</one>
  <two a="1" b="2">two</two>
  <three />
</root>
EOD;


echo ">>> \EasyRdf\XMLParser\n";
$parser = new \EasyRdf\XMLParser();
$parser->startElementCallback = function($parser) {
  echo str_repeat('  ', $parser->depth());
  echo "start: ".$parser->name."\n";
};
$parser->endElementCallback = function($parser) {
  echo str_repeat('  ', $parser->depth());
  echo "end: ".$parser->name."\n";
};
$parser->textCallback = function($parser) {
  echo str_repeat('  ', $parser->depth() + 1);
  echo "text: ".$parser->value."\n";
};
$parser->parse($xml);
$parser->close();
echo "<<< \EasyRdf\XMLParser\n";


echo "\n\n";


$depth = 0;

function startElementHandler($parser, $name, $attrs)
{
    global $depth;
    $depth++;
    echo str_repeat('  ', $depth);
    echo "start: $name\n";
}

function endElementHandler($parser, $name)
{
    global $depth;
    echo str_repeat('  ', $depth);
    echo "end: $name\n";
    $depth--;
}

function cdataHandler($parser, $data)
{
    global $depth;
    if (trim($data) == '')
      return;

    echo str_repeat('  ', $depth + 1);
    echo "text: $data\n";
}

echo ">>> xml_parser_create_ns()\n";
$parser = xml_parser_create_ns('UTF-8', '');
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 0);
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
xml_set_element_handler($parser, 'startElementHandler', 'endElementHandler');
xml_set_character_data_handler($parser, 'cdataHandler');

if (!xml_parse($parser, $xml)) {
    die(sprintf("XML error: %s at line %d",
                xml_error_string(xml_get_error_code($parser)),
                xml_get_current_line_number($parser)));
}
xml_parser_free($parser);
echo "<<< xml_parser_create_ns()\n";