我有一个xml文件
<?xml version="1.0" encoding="UTF-8"?>
<xml>
<settings>
<title>Calendar2</title>
<subTitle>Calendar2</subTitle>
</settings>
<events date="02-09-2010">
<event>
<title>HTML Tags</title>
<description>HTML Tags</description>
</event>
</events>
</xml>
我如何在事件标签内添加另一个事件，相对于日期而言
<?xml version="1.0" encoding="UTF-8"?>
<xml>
<settings>
<title>Calendar2</title>
<subTitle>Calendar2</subTitle>
</settings>
<events date="02-09-2010">
<event>
<title>HTML Tags</title>
<description>HTML Tags</description>
</event>
<event>
<title>Another Title</title>
<description>Another description</description>
</event>
</events>
</xml>
答案 0 :(得分：1)
答案 1 :(得分：1)
我给你2个函数用于xml2array转换，另一个用于array2xml转换
function xml2ary(&$string)
{
$parser = xml_parser_create ();
xml_parser_set_option ($parser , XML_OPTION_CASE_FOLDING , 0);
xml_parse_into_struct ($parser , $string , $vals , $index);
xml_parser_free ($parser);
$mnary = array();
$ary = &$mnary;
foreach ( $vals as $r )
{
$t = $r['tag'];
if ($r['type'] == 'open')
{
if (isset ($ary[$t]))
{
if (isset ($ary[$t][0]))
$ary[$t][] = array();
else
$ary[$t] = array($ary[$t] , array());
$cv = &$ary[$t][count ($ary[$t]) - 1];
}
else
$cv = &$ary[$t];
if (isset ($r['attributes']))
{
foreach ( $r['attributes'] as $k => $v )
$cv['_a'][$k] = $v;
}
$cv['_c'] = array();
$cv['_c']['_p'] = &$ary;
$ary = &$cv['_c'];
}
elseif ($r['type'] == 'complete')
{
if (isset ($ary[$t]))
{ // same as open
if (isset ($ary[$t][0]))
$ary[$t][] = array();
else
$ary[$t] = array($ary[$t] , array());
$cv = &$ary[$t][count ($ary[$t]) - 1];
}
else
$cv = &$ary[$t];
if (isset ($r['attributes']))
{
foreach ( $r['attributes'] as $k => $v )
$cv['_a'][$k] = $v;
}
$cv['_v'] = (isset ($r['value']) ? $r['value'] : '');
}
elseif ($r['type'] == 'close')
{
$ary = &$ary['_p'];
}
}
_del_p ($mnary);
return $mnary;
}
function ary2xml($cary , $d = 0 , $forcetag = '')
{
$res = array();
foreach ( $cary as $tag => $r )
{
if (isset ($r[0]))
{
$res[] = ary2xml ($r , $d , $tag);
}
else
{
if ($forcetag)
$tag = $forcetag;
$sp = str_repeat ("\t" , $d);
$res[] = "$sp<$tag";
if (isset ($r['_a']))
{
foreach ( $r['_a'] as $at => $av )
$res[] = " $at=\"$av\"";
}
$res[] = ">" . ((isset ($r['_c'])) ? "\n" : '');
if (isset ($r['_c']))
$res[] = ary2xml ($r['_c'] , $d + 1);
elseif (isset ($r['_v']))
$res[] = $r['_v'];
$res[] = (isset ($r['_c']) ? $sp : '') . "</$tag>\n";
}
}
return implode ('' , $res);
}
将你的xml传递给函数xml2ary（），你将获得如下所示的输出
Array
(
[xml] => Array
(
[_c] => Array
(
[settings] => Array
(
[_c] => Array
(
[title] => Array
(
[_v] => Calendar2
)
[subTitle] => Array
(
[_v] => Calendar2
)
)
)
[events] => Array
(
[_a] => Array
(
[date] => 02-09-2010
)
[_c] => Array
(
[event] => Array
(
[_c] => Array
(
[title] => Array
(
[_v] => HTML Tags
)
[description] => Array
(
[_v] => HTML Tags
)
)
)
)
)
)
)
)
然后按照你想要的方式转换这个数组。
例如。
Array
(
[xml] => Array
(
[_c] => Array
(
[settings] => Array
(
[_c] => Array
(
[title] => Array
(
[_v] => Calendar2
)
[subTitle] => Array
(
[_v] => Calendar2
)
)
)
[events] => Array
(
[_a] => Array
(
[date] => 02-09-2010
)
[_c] => Array
(
[event] => Array
(
[0] => Array
(
[_c] => Array
(
[title] => Array
(
[_v] => HTML Tags
)
[description] => Array
(
[_v] => HTML Tags
)
)
)
[1] => Array
(
[_c] => Array
(
[title] => Array
(
[_v] => Another Title
)
[description] => Array
(
[_v] => Another description
)
)
)
)
)
)
)
)
)
再次使用ary2xml（）函数
您将获得所需的输出..
<?xml version="1.0" encoding="UTF-8"?>
<xml>
<settings>
<title>Calendar2</title>
<subTitle>Calendar2</subTitle>
</settings>
<events date="02-09-2010">
<event>
<title>HTML Tags</title>
<description>HTML Tags</description>
</event>
<event>
<title>Another Title</title>
<description>Another description</description>
</event>
</events>
</xml>
答案 2 :(得分：0)
$xml_str = file_get_contents($xmlfile);
$xml = new SimpleXMLElement($xml_str);
$wantedEventsTag = $xml->xpath('/xml/events[@date="'.$date.'"]');
$wantedEventsTag = $wantedEventsTag [0];//since above fun will return an array
$event = $wantedEventsTag->addChild('event');
$event['id']=$id;
$event->addChild('title', $title);
$event->addChild('description', $des);
file_put_contents($xmlfile, $xml->asXML());