<details>
<car>
<id>61XZB6</id>
<Jan-01-14>20</Jan-01-14>
<Jan-02-14>435</Jan-02-14>
<Jan-03-14>454</Jan-03-14>
<Jan-04-14>768</Jan-04-14>
<Jan-05-14>24</Jan-05-14>
<Jan-06-14>675</Jan-06-14>
<Jan-07-14>213</Jan-07-14>
<Jan-08-14>44</Jan-08-14>
<Jan-09-14>565</Jan-09-14>
<Jan-10-14>80</Jan-10-14>
<Jan-11-14>998</Jan-11-14>
<Jan-12-14>67</Jan-12-14>
<Jan-13-14>77</Jan-13-14>
<Jan-14-14>909</Jan-14-14>
<Jan-15-14>34</Jan-15-14>
<Jan-16-14>887</Jan-16-14>
<Jan-17-14>767</Jan-17-14>
<Jan-18-14>545</Jan-18-14>
<Jan-19-14>67</Jan-19-14>
<Jan-20-14>787</Jan-20-14>
<Jan-21-14>898</Jan-21-14>
<Jan-22-14>435</Jan-22-14>
<Jan-23-14>42</Jan-23-14>
<Jan-24-14>232</Jan-24-14>
<Jan-25-14>234</Jan-25-14>
<Jan-26-14>675</Jan-26-14>
<Jan-27-14>46</Jan-27-14>
<Jan-28-14>546</Jan-28-14>
<Jan-29-14>88</Jan-29-14>
<Jan-30-14>0</Jan-30-14>
<Jan-31-14>0</Jan-31-14>
</car>
</details>
My query is how to check the last node inside each tag before inserting a new node to each tag.Thanks in advance for any sort of help extended.
If I understand you correctly you would like to check for the last element in each car
element node? Well, Xpath hast two methods position()
and last()
that can be used in a condition.
Select the car nodes
/details/car
Select the child element nodes of the car
nodes
/details/car/*
Add a condition to limit the selection to the last node
/details/car/*[last()]
Full example: https://eval.in/145531
$dom = new DOMDocument();
$dom->loadXml($xml);
$xpath = new DOMXpath($dom);
foreach ($xpath->evaluate('/details/car/*[last()]') as $node) {
var_dump(
$node->nodeName,
$node->nodeValue
);
}
Output:
string(9) "Jan-31-14"
string(1) "0"
HINT!
Flexible element names are really bad style, you will not be able to define them in a schema. If possible I suggest you change them to something like <amount date="Jan-31-14">0</amount>
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