Question

我正在尝试存储文本/字符串值。值没有唯一标识符。但是存在一个独特的标签。

使用xPath和PHP，如何存储值？

我的第二个问题是扇区标签包含无，一个或多个结果，具体取决于记录

示例：

[Location] = London, UK;
[Price] = £5000;
[Sector] = IT, ICT;

HTML：

      <div class="DetailsPanel">
        <label class="ListLabel left">Location</label>
        <span id="location" class="ListDetail left" title="London, UK">London, UK</span>
         <label class="ListLabel left">Price</label>
        <span id="price" class="ListDetail left" title="£5000">£5000</span>
        <label class="ListLabel left">Sector</label>
        <span class="ListDetail left">
          <a href="/">IT</a>
          <a href="/">ICT</a>
        </span>
      </div>

当前代码：

 foreach ($entries as $entry) {

    $node = $xpath->query("div/a | div/p | div/label | div/span", $entry);

    echo '<job>' . "\n";

    foreach ($node as $i) {
        $tag = $i->nodeName;
        $att = $i->getAttribute('id');
        $string = $i->nodeValue;
        $string = preg_replace('/\s+\s+/','',$string);

....

 echo '<' . $tag . ">" . $string . '</' . $tag . ">" . "\n";

Answer 1

PHP不是我的主要语言，但这里有一个快速的方法，首先获取标签，然后使用xpath获取相邻的span元素：

<?php
$string = <<<XML
<div class="DetailsPanel">
    <label class="ListLabel left">Location</label>
    <span id="location" class="ListDetail left" title="London, UK">London, UK</span>
     <label class="ListLabel left">Price</label>
    <span id="price" class="ListDetail left" title="£5000">£5000</span>
    <label class="ListLabel left">Sector</label>
    <span class="ListDetail left">
      <a href="/">IT</a>
      <a href="/">ICT</a>
    </span>
  </div>
XML;

$xml = new SimpleXMLElement($string);

/* get label nodes*/
$label = $xml->xpath('label');

/* iterate over labels */
foreach ($label as $l) {

    /* get adjacent span element */
    foreach ($l->xpath("following-sibling::span[1]") as $span) {        
        $a = "";
        /* if span has a */
        if ($span->xpath("a")) {
            $a = join(", ",$span->xpath("a"));
        }          
    }
    echo $l, " : ", $span,$a, "<br/>";
}
?>

这将呼应：

Location : London, UK
Price : £5000
Sector : IT, ICT

使用PHP和xPath按标签文本存储值？

1 个答案: