php - 使用 php 抓取 html 数据

Question

如何parse到HTML data一个PHP array PHP

HTML 数据

<div class="test">
    <strong>ID</strong>
    <a href="a.html" title="a html">123456</a><br>
    <label class='label'>Occupation </label>    
    House wife      <br>
    <label>Language?</label>    
    English     <br>
    <label style="width:50%">Basic Language Knowledge of?</label>   
    Hindi       <br>
    <label>Start date</label>
    Nov 2013        <br>
    <label>Other Info</label>
    yes     <br>
    <label>age</label>
    19      <br>
    <label>Gender</label>   
    Female      <br>
    <strong>Address</strong>
    India       <br><br>
    <p>Hi, <br>
Lorem ipsum doner inut</p>
</div>

我试过这个，

<?php
    $html='Let above html to parse';
    preg_match_all('/<label\s(.*)>(.*)<\/label>/U',$html,$m);
    print_r($m);
    // gives all label contents only but I need pair of label text 
    // and value showing after it
?>

输出如，

Array('ID'=>123456,'link'=>'a.html','职业'=>'房主','语言？'=>'英语','基本语言知识？'=>'印地语','开始日期'=>'Nov 2013','Other Info'=>'yes','age'=>'19','Gender'=>'Female','Address'=>'India' ,'description'=>'嗨，Lorem ipsum doner inut');

是的，forgot to mention我正在使用ganonscraping

Answer 1

用于DOMDocument解析 HTML。

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

并用于DOMXPath获取所有标签：

$xpath = new DOMXPath($doc);
$allLabels = $xpath->query('//label');

foreach($allLabels as $label) {
    var_dump($label, $label->nodeValue);

    /* or */
    $labelElmnts = $xpath->query('/*', $label);

    $innerHTML = '';

    foreach($labelElmnts as $elmnt)
        $innerHTML .= $domDoc->saveHTML($elmnt);

    var_dump($innerHTML);
}

Answer 2

更简单的解决方案。

使用查询路径：

foreach(qp($html, 'label') as $label){
  echo $label->text();
}

就像 jquery 一样。

Answer 3

我用过ganon，所以我不想用Dom Document我试过了，worked喜欢，

// for description
echo $desc=$html('div.right_div p',0)->getInnerText();

$s=$html('div.right_div',0)->getInnerText();

// for occupation
$r='/<label>\s*Occupation\s*<\/label>\s*(.*)\s*<br\s*[\/]>/i';
preg_match_all($r,$s,$ma);
echo $occupation=$ma[1];

// for address
$r='/<strong>\s*Address\s*<\/strong>\s*(.*)\s*<br\s*[\/]>/i';
preg_match_all($r,$s,$ma);
echo $address=$ma[1];

// for id
echo $id=$html('div.right_div a',0)->getInnerText();

等等……