请帮我编码。 @hakre
我有以下XML文件。
<?xml version="1.0"?>
<Results>
<Recordset setCount="3">
<Record setEntry="0">
<TI>Test-1</TI>
<MO>Mo-1</MO>
<AU>One</AU>
<AU>Two</AU>
<AU>three</AU>
<JF>OK</JF>
<JT />
</Record>
<Record setEntry="1">
<TI>Test-2</TI>
<MO>Mo-2</MO>
<AU>One</AU>
<AU>Two</AU>
<AU>Three</AU>
<AU>Four</AU>
<AU>Five</AU>
<AU>Six</AU>
<AU>Seven</AU>
<JF />
<JT />
</Record>
<Record setEntry="2">
<TI>Test31</TI>
<MO>Mo-3</MO>
<AU>One</AU>
<AU />
<JF />
<JT />
</Record>
</Recordset>
</Results>
我希望它像下面的XML文件。
<?xml version="1.0"?>
<Results>
<Recordset setCount="3">
<Record setEntry="0">
<TI>Test-1</TI>
<MO>Mo-1</MO>
<AU>One; Two; Tree</AU>
<JF>OK</JF>
<JT />
</Record>
<Record setEntry="1">
<TI>Test-2</TI>
<MO>Mo-2</MO>
<AU>One; Two; Three; Four; Five; Six; Seven</AU>
<JF />
<JT />
</Record>
<Record setEntry="2">
<TI>Test31</TI>
<MO>Mo-3</MO>
<AU>One</AU>
<JF />
<JT />
</Record>
</Recordset>
</Results>
这些是我需要完成的事情。
将SIMILAR XML标记中的值连接成一个标记,用&#34;;&#34;分隔。 (&#34; AU标签&#34;在给定的例子中)
保留空白的XML标记。
PHP以名称&#34; SECOND.XML&#34;创建和保存第二个XML文件。
答案 0 :(得分:0)
这是解决问题的一种方法。它不会硬编码任何子节点名称(TI
,MO
,AU
等),因此您可能会在类似文档上使用它。我在代码中添加了注释,因此请阅读它们并询问您是否不理解代码的作用。
$txt = 'your XML string goes here';
$dom = new DOMDocument;
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$dom->loadXML($txt);
$xp = new DOMXPath($dom);
# find all the nodes types that appear under Record
$cnode_type = array();
foreach ($xp->query("/Results/Recordset/Record/*") as $c) {
$cnode_type[] = $c->nodeName;
}
# cnode_type now contains the different child node types
$cnode_type = array_unique($cnode_type);
# get all the Record nodes
$recs = $xp->query("/Results/Recordset/Record");
# for every Record node...
foreach ($recs as $par) {
# for each type of child node...
foreach ($cnode_type as $c) {
# run an XPath query to count the number of children of node type $c
# if there are more than one, we need to remove the extras
if ($xp->evaluate("count($c)", $par) > 1) {
# go through all the $c nodes, saving the value in $node_vals
# delete the node
$node_vals = [];
foreach ($xp->query($c, $par) as $n) {
# only save the contents of nodes with a value
if (isset($n->nodeValue) && strlen($n->nodeValue) > 0) {
$node_vals[] = $n->nodeValue;
}
$par->removeChild($n);
}
# create a new $c node and set the value to the list in $node_vals
# add it to the parent node
$new_node = $dom->createElement($c, implode("; ", $node_vals));
$par->appendChild($new_node);
}
}
}
# print out the result
echo $dom->saveXML();
您发布的XML的输出:
<?xml version="1.0"?>
<Results>
<Recordset setCount="3">
<Record setEntry="0">
<TI>Test-1</TI>
<MO>Mo-1</MO>
<JF>OK</JF>
<JT/>
<AU>One; Two; three</AU>
</Record>
<Record setEntry="1">
<TI>Test-2</TI>
<MO>Mo-2</MO>
<JF/>
<JT/>
<AU>One; Two; Three; Four; Five; Six; Seven</AU>
</Record>
<Record setEntry="2">
<TI>Test31</TI>
<MO>Mo-3</MO>
<JF/>
<JT/>
<AU>One</AU>
</Record>
</Recordset>
</Results>