Question

我正在尝试将Simple HTML DOM解析器（PHP）用于项目。基本上，我有一个像这样的网页的源代码 -

chown

这个div中的一些包含段落~/.config，现在我想要打印div中包含大部分<html> ... ... <div id="1> Some content here</div> <div id="2> Some content here</div> <div id="3> Some content here</div> <div id="4> Some content here</div> .... ... </html>标记的段落。这是我第一次使用HTML解析器，我尝试了很多东西，但没有给我适当的输出。编辑 - 一个div可能有一些父div。所以我想打印包含最多(<p>)的div的文本。对于下面的示例，我只想要div id 4的输出：

<p>

Answer 1

    $html = file_get_html('http://your_web_page');

    $arr = array();
    // Find all divs, but you should include the parent class
    foreach($html->find('.parent_class_name div') as $key => $element) {
           echo $key." : ".count($element->find('p')) . '<br>';
           $arr[$key] = count($element->find('p'));
   }
print_r(max($arr));

Answer 2

执行此操作（运行代码段并单击按钮以获取结果）：

＆＃13;

$("#clickMe").on('click', function()
{
   var mostP = 0;
   var textOfMostP = '';
   
   // iterate through all divs on page
   $( "div" ).each(function() 
   {
      // check the count of childern p elements inside current div
      if($(this).children("p").length > mostP)
      {
          textOfMostP = this.innerHTML;
          mostP = $(this).children("p").length;
      }
   });
   
   // If a result for most p's has been found
   if(mostP != 0)
   {
      $( "#result" ).html("Result:<br/>Number of p's: " + mostP + "<br/><br/>The text:" + textOfMostP);
   }
});

＆＃13;

div
{
  position: relative;
  float:left;
  border:1px solid #09f;
  border-radius:4px;
  margin-bottom: 10px;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div>
  <p>this is some text</p>
  <p>this is some more</p>
  <p>this is even more</p>
</div>

<div>
  <p>there is only this here</p>
</div>

<div>
  <p>two lines are here</p>
  <p>this is second line</p>
</div>

<input type="button" id="clickMe" value="Write div with most <p>s" />

<div id="result">The result will come here</div>

＆＃13;

使用Simple HTML DOM查找最多<p>的DIV

2 个答案: