Xpath - select element with attribute and take another attribute value

Question

I have this code:

 <li datetime="2019-06-03T14:45" offset="-135" type="standard"></li>
... etc.

How I can get datetime attribute value if all elements contain attribute type with value standard? So how I can get datetime value (2019-06-03T14:45) from each li element

I tried:

$timeslots = [];
$dom = new \DOMDocument();
@$dom->loadHTML($html);
$xpath = new \DOMXPath($dom);
$entries = $xpath->query('//li[@type="standard"])/@datetime');

foreach($entries as $e) {
  $timeslots[] = $e->textContent;
}

$ts = $timeslots;
return $ts;

but I got an error:

DOMXPath::query(): Invalid expression

Think it's the extra ) in li[@type="standard"])/

Nigel Ren
– Nigel Ren

2019-06-02 20:13:18 +00:00
Commented Jun 2, 2019 at 20:13 — Nigel Ren
– Nigel Ren, Commented Jun 2, 2019 at 20:13
thanks, thats correct answer

Aleks Per
– Aleks Per

2019-06-02 20:15:04 +00:00
Commented Jun 2, 2019 at 20:15 — Aleks Per
– Aleks Per, Commented Jun 2, 2019 at 20:15

supputuri · Accepted Answer · 2019-06-03 04:52:23Z

2

Thought the issue is resolved, I just want to provide the idea how you can quickly check your xpath here.

This will give you the message if xpath is not correct and you can get idea what's wrong.

answered Jun 3, 2019 at 4:52

supputuri

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