Skip values in PHP XPath

Question

I am using PHP xpath to read values from XML. I have condition like below where I want to get Id of "a" where there is only name tag in "b". and skip if any other tag is present along with name. expected out put is 1. but I am getting all the Ids of "a" tag. I am using Xpath as

$xml->xpath("//a[b/name = 'value1' ]/@id");

how I can skip ids 2 and 3 and get output 1

sample XML

<a id="1">
    <b>
        <name> value1 </name>
    </b>
</a>
<a id="2">
    <b>
        <name> value1 </name>
        <other> value2 </other>
    </b>
</a>
<a id="3">
    <b>
        <name> value1 </name>
        <other> value3 </other>
    </b>
</a>

BlueM · Accepted Answer · 2016-10-24 07:49:57Z

2

Try this:

//a/b[count(*) = 1 and count(name) = 1]/../@id

answered Oct 24, 2016 at 7:49

BlueM

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