SimpleXML Search Children and Retrieve all Nodes - php

Question

More or less I need guidance to move forward with this ..
Have a page that displays each node in a container (does stuff to it)
XML
<archive>
<data id="1111">
<name>Name</name>
<text>Lots of stuff and things</text>
<etc>Etc</etc>
</data>
<data id="2222">
<name>Name</name>
<text>Different stuff and things</text>
<etc>Etc</etc>
</data>
<data id="3333">
<name>Name</name>
<text>More stuff and things</text>
<etc>Etc</etc>
</data>
// and so on
</archive>
This portion takes the XML and echos the values etc ..
$master = array_slice($xml_get->xpath('data'), $start_page, 25);
$master = array_reverse($master);
foreach($master as $arc) {
$last_name = $arc[0]->name;
$last_data = $arc[0]->data;
$last_etc = $arc[0]->etc;
// does stuff with values
}
What I want to do is have a search field that takes that search keyword and searches all the children and then foreach every node+children that matches.
Honestly I just would appreciate some direction on how to accomplish this. I know how to individually grab a node via the id= but after that .. need guidance.

Answer 1

As a quick sample, to search the <text> element using XPath (I've altered the sample data you give to show the difference in what it selects)
$data = '<archive>
<data id="1111">
<name>Name</name>
<text>Lots of stuff and things</text>
<etc>Etc</etc>
</data>
<data id="2222">
<name>Name</name>
<text>Different stuff and things</text>
<etc>Etc</etc>
</data>
<data id="3333">
<name>Name</name>
<text>More stuff and other things</text>
<etc>Etc</etc>
</data>
</archive>';
$xml_get = simplexml_load_string($data);
$textSearch = "stuff and things";
$matches = $xml_get->xpath('//data[contains(text,"'.$textSearch.'")]');
foreach($matches as $arc) {
echo "text=".$arc->text.PHP_EOL;
}
Outputs..
text=Lots of stuff and things
text=Different stuff and things
The XPath - //data[contains(text,"'.$textSearch.'")] basically says to find any <data> element which has a <text> element which has a value that contains the string being searched for. You can alter which field it uses by just changing text