请问在PHP中,如何输出test.xml中id=1的内容?效果:<a href="链接1">标题1</a>注:test.xml中的id是无序的,如下所示:
<?xml version="1.0" encoding="utf-8" ?>
<records>
<record>
<id>7</id>
<subject>标题7</subject>
<url>链接7</url>
</record>
<record>
<id>3</id>
<subject>标题3</subject>
<url>链接3</url>
</record>
………………
<record>
<id>1</id>
<subject>标题1</subject>
<url>链接1</url>
</record>
………………
<record>
<id>5</id>
<subject>标题5</subject>
<url>链接5</url>
</record>
<record>
<id>6</id>
<subject>标题6</subject>
<url>链接6</url>
</record>
………………
</records>
<?xml version="1.0" encoding="utf-8" ?>
<records>
<record>
<id>7</id>
<subject>标题7</subject>
<url>链接7</url>
</record>
<record>
<id>3</id>
<subject>标题3</subject>
<url>链接3</url>
</record>
………………
<record>
<id>1</id>
<subject>标题1</subject>
<url>链接1</url>
</record>
………………
<record>
<id>5</id>
<subject>标题5</subject>
<url>链接5</url>
</record>
<record>
<id>6</id>
<subject>标题6</subject>
<url>链接6</url>
</record>
………………
</records>
$xml = <<<XML
<?xml version="1.0" encoding="utf-8" ?>
<records>
<record>
<id>7</id>
<subject>标题7</subject>
<url>链接7</url>
</record>
<record>
<id>3</id>
<subject>标题3</subject>
<url>链接3</url>
</record>
</records>
XML;$obj = simplexml_load_string($xml);
foreach ($obj->record as $record)
{
if ($record->id == 1)
{
//echo htmlentities("<a href={$record->url}>{$record->subject}</a>");
echo ("<a href={$record->url}>{$record->subject}</a><br>");
}
}
?>
$subject = array();
$url = array();
foreach ($obj->record as $records)
{
$id = (int)$records->id;
$subject[$id] = (string)$records->subject;
$url[$id] = (string)$records->url;
}echo "<pre>";var_export($subject);
echo "<pre>";var_export($url);
这样就可以了。。