查找带有特定类的<p>(段落)标记，并使用提取其内容

Question

我想在工作经验和教育培训之间找到带有ft04类的p标记，并从给定的html中提取包含公司名称的类文本。

<p class = "ft00">Introduction</p>
<p class = "ft00">John Smith</p>
<p class = "ft02">Email:</p>
<p class = "ft02">Phone Number:</p>
<p class = "ft00">John@gmail.com</p>
<p class = "ft00">Work Experience</p>
<p class = "ft00">27 July 2017</p>
<p class = "ft04">ABC Company</p>
<p class = "ft00">19 May 2018</p>
<p class ="ft04">XYZ Company</p>
<p class = "ft00">EDUCATION AND TRAINING</p>

到目前为止，我可以得到的是提取工作经验与教育和培训之间的所有数据，它正在正常工作，代码如下：-

$fexp = $html->find('p[plaintext^=Work Experience]');
$items = array();
 foreach ($fexp as $keye) {

    while ( $keye->nextSibling() ) {
        if ( $keye->nextSibling() == TRUE ) {

         $keye = $keye->nextSibling();
            $varce = $keye->plaintext;



        }
        if ( trim($varce) == "EDUCATION AND TRAINING" ){
            break;
        }
        //$test[] = $collection;
       $items[] = $varce;
        // echo $varce;

}
}
var_dump($items);

我离得很近，但似乎找不到解决办法，任何帮助都将不胜感激：)

Answer 1

以下是工作代码:)

$html = '<p class = "ft00">Introduction</p>
<p class = "ft00">John Smith</p>
<p class = "ft02">Email:</p>
<p class = "ft02">Phone Number:</p>
<p class = "ft00">John@gmail.com</p>
<p class = "ft00">Work Experience</p>
<p class = "ft00">27 July 2017</p>
<p class = "ft04">ABC Company</p>
<p class = "ft00">19 May 2018</p>
<p class ="ft04">XYZ Company</p>
<p class = "ft00">EDUCATION AND TRAINING</p>';

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

$items = array();

foreach ($doc->getElementsByTagName('p') as $p) {
    if (strtolower(trim($p->nodeValue)) == 'work experience') {
        $found = true;
    }
    if (isset($found) && strtolower(trim($p->getAttribute('class'))) == 'ft04') {
        $items[] = $p->nodeValue;
    }
    if (strtolower(trim($p->nodeValue)) == 'education and training') {
        break;
    }
}

print_r($items);

输出

Array
(
    [0] => ABC Company
    [1] => XYZ Company
)

希望它能帮上忙

Answer 2

您可以使用以下方法检查该类：

$keye->getAttribute("class") === "ft04"

您可以在while语句中设置nextSibling()以缩短代码：

while ($keye = $keye->nextSibling()) {

在遍历兄弟姐妹时，检查类名ft04并将plaintext添加到数组$items中。

您可以将代码更新为：

$fexp = $html->find('p[plaintext^=Work Experience]');
$items = array();
foreach ($fexp as $keye) {
    while ($keye = $keye->nextSibling()) {
        if ($keye->plaintext === "EDUCATION AND TRAINING") {
            break;
        }
        if($keye->getAttribute("class") === "ft04") {
            $items[] = $keye->plaintext;
        }
    }
}
var_dump($items);

这会让你：

array(2) {
  [0]=>
  string(11) "ABC Company"
  [1]=>
  string(11) "XYZ Company"
}