--TEST--
XMLReader: accessing empty and non existing attributes
--SKIPIF--
<?php if (!extension_loaded("xmlreader")) print "skip"; ?>
--FILE--
<?php

$xmlstring =<<<EOF
<?xml version="1.0" encoding="UTF-8"?>
<foo bar=""/>
EOF;

$reader = new XMLReader();
$reader->XML($xmlstring);
$reader->read();
var_dump($reader->getAttribute('bar'));
var_dump($reader->getAttribute('baz'));
$reader->close();

$xmlstring =<<<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE foo SYSTEM "012.dtd">
<foo bar=""/>
EOF;

$xmlstring = str_replace('012.dtd', __DIR__.'/012.dtd', $xmlstring);
if (DIRECTORY_SEPARATOR == '\\') {
    $xmlstring = str_replace('\\',"/", $xmlstring);
}
$reader = new XMLReader();
$reader->XML($xmlstring);
$reader->setParserProperty(XMLReader::DEFAULTATTRS, true);
while($reader->read() && $reader->nodeType != XMLReader::ELEMENT);
var_dump($reader->getAttribute('bar'));
var_dump($reader->getAttribute('baz'));
$reader->close();

echo "\nUsing URI:\n";
$reader = new XMLReader();
$file = __DIR__ . '/012.xml';
if (DIRECTORY_SEPARATOR == '\\') {
    $file = str_replace('\\',"/", $file);
}

$reader->open($file);

//$reader->setParserProperty(XMLReader::DEFAULTATTRS, true);
while($reader->read() && $reader->nodeType != XMLReader::ELEMENT);
var_dump($reader->getAttribute('bar'));
var_dump($reader->getAttribute('baz'));
$reader->close();

$reader = new XMLReader();
$reader->open(__DIR__ . '/012.xml');
$reader->setParserProperty(XMLReader::DEFAULTATTRS, true);
while($reader->read() && $reader->nodeType != XMLReader::ELEMENT);
var_dump($reader->getAttribute('bar'));
var_dump($reader->getAttribute('baz'));
$reader->close();

?>
--EXPECT--
string(0) ""
NULL
string(0) ""
string(0) ""

Using URI:
string(0) ""
NULL
string(0) ""
string(0) ""