如何使用php DOM Script获取每个字段的特定值？ 对于以下格式？

I want to get the value of each field like "Delhi" , "Kolkatta".

How can i do this using php DOM Script ?

here is the source of the page to parsed.

<tbody><tr>
<td>Delhi</td>
<td>66.91</td>
</tr>
<tr>
<td>Kolkata</td>
<td>69.52</td>
</tr>
<tr>
<td>Mumbai</td>
<td>78.44</td>   
</tr>
<tr>
<td>Chennai</td>
<td>69.93</td>
</tr></tbody>

See question here: How do you parse and process HTML/XML in PHP?

How to use the DOM extension has been covered extensively on StackOverflow, so if you choose to use it, you can be sure most of the issues you run into can be solved by searching/browsing Stack Overflow

Here an example:

$html = <<<HTML
<tbody><tr>
<td>Delhi</td>
<td>66.91</td>
</tr>
<tr>
<td>Kolkata</td>
<td>69.52</td>
</tr>
<tr>
<td>Mumbai</td>
<td>78.44</td>
</tr>
<tr>
<td>Chennai</td>
<td>69.93</td>
</tr></tbody>
HTML;

$dom = new DOMDocument();
$dom->loadHTML($html);

$elements = $dom->getElementsByTagName('tr');
$data = [];
foreach($elements as $node) {
    $childElements = $node->getElementsByTagName('td');
    $data[$childElements->item(0)->nodeValue] = $childElements->item(1)->nodeValue;
}

Here we are using DOMDocument to achieve desired output.

Try this code snippet here

$domDocument = new DOMDocument();
$domDocument->loadHTML($string);

$domXPath = new DOMXPath($domDocument);
$results = $domXPath->query("//tbody/tr/td");
$data=array();
for($x=0;$x<$results->length;$x+=2)
{
    $instance=$results->item($x);
    if($instance instanceof DOMElement)
    {
        $data[]=$results->item($x)->textContent;
    }
}
print_r($data);

Alternatively you can use simplexml function, please someone correct me if it is wrong way or bad idea

$xml='<tbody><tr>
<td>Delhi</td>
<td>66.91</td>
</tr>
<tr>
<td>Kolkata</td>
<td>69.52</td>
</tr>
<tr>
<td>Mumbai</td>
<td>78.44</td>   
</tr>
<tr>
<td>Chennai</td>
<td>69.93</td>
</tr></tbody> ';
echo "<pre>";
$arr=simplexml_load_string($xml);
$arr_new=array();
$arr1=json_decode(json_encode((array)$arr), TRUE);
foreach($arr1 as $val){
    foreach($val as $k=>$v){
        $arr_new[$val[$k]['td'][0]]=$val[$k]['td'][1];
    }
}

Output

Array
(
    [Delhi] => 66.91
    [Kolkata] => 69.52
    [Mumbai] => 78.44
    [Chennai] => 69.93
)