以下测试函数使用PHP的xmlreader读取XML文件,并返回3个值的二维数组(“ id” =键).
您如何编辑代码,以便在数组中也返回用户名键和值? (显示在末尾)
ini_set('always_populate_raw_post_data', 'on');
function test()
{
$request = $HTTP_RAW_POST_DATA;
error_reporting(E_ERROR | E_WARNING | E_PARSE);
$url = "http://site.xml";
$reader = new XMLReader();
$reader->open($url);;
$var = array();
$i = 0;
$limit = 3;
while ($reader->read())
{
if ($reader->name == "id" && $reader->nodeType == XMLReader::ELEMENT)
{
if ($i == $limit) break;
while ($reader->read())
{
if ($reader->nodeType == XMLReader::TEXT
|| $reader->nodeType == XMLReader::CDATA
|| $reader->nodeType == XMLReader::WHITESPACE
|| $reader->nodeType == XMLReader::SIGNIFICANT_WHITESPACE)
{
$var[$i]["id"] = $reader->value;
}
else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "id")
{
break;
}
}
$i++;
}
}
$reader->close();
echo '<pre>';
print_r($var);
echo '</pre>';
}
test()返回此数组
Array
(
[0] => Array
(
[id] => 345
)
[1] => Array
(
[id] => 123
)
[2] => Array
(
[id] => 789
)
)
您还如何获得用户名键和值?
Array
(
[0] => Array
(
[id] => 345
[username] => name1
)
[1] => Array
(
[id] => 123
[username] => name2
)
[2] => Array
(
[id] => 789
[username] => name3
)
)
添加到Jose的答案
// needed to end element
else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "username")
{
break;
}
解决方法:
这应该工作.
function test()
{
$request = $HTTP_RAW_POST_DATA;
error_reporting(E_ERROR | E_WARNING | E_PARSE);
$url = "http://site.xml";
$reader = new XMLReader();
$reader->open($url);;
$var = array();
$i = 0;
$limit = 3;
while ($reader->read())
{
if (($reader->name == "id" || $reader->name == "username") && $reader->nodeType == XMLReader::ELEMENT)
{
$name = $reader->name;
if ($i == $limit) break;
while ($reader->read())
{
if ($reader->nodeType == XMLReader::TEXT
|| $reader->nodeType == XMLReader::CDATA
|| $reader->nodeType == XMLReader::WHITESPACE
|| $reader->nodeType == XMLReader::SIGNIFICANT_WHITESPACE)
{
$var[$i][$name] = $reader->value;
}
else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "id")
{
break;
}
}
if($name == "username")
$i++;
}
}
$reader->close();
echo '<pre>';
print_r($var);
echo '</pre>';
}
变化:
($reader->name == “id” ||
$reader->name == “username”)$name = $reader->name;
$var[$i][$name] = $reader->value;
if($name == “username”)
$i++;