[英]how to extract content of all inside in p tag using php
我試圖提取div類中html的所有p標簽的內容，並嘗試將整個流插入一個變量數組中
這是HTML代碼示例
<html>
...
<div class=news-box>
<h2>Heading</h2>
<p>afsdfdfha adhfaksdhf adfhakhf adfhaskfdha fsahfkasdhfaasfdjhasdf ahdfkahsd</p>
<p>afsdfdfha adhfaksdhf adfhakhf adfhaskfdha fsahfkasdhfaasfdjhasdf ahdfkahsd</p>
<p>afsdfdfha adhfaksdhf adfhakhf adfhaskfdha fsahfkasdhfaasfdjhasdf ahdfkahsd</p>
<p>yuoyuouoyuoyuyu oyuiouioyuioyuyiouyoiy youyoiyuioyuioyuyoiuyiuyiyuioyu yuyiu</p>
</div>
...
</html>
我想提取p中的所有內容並嘗試將整個流插入變量以插入數據庫中，我在下面的這些php代碼中使用
<?php
include('simple_html_dom.php');
$url = 'http://www.example.com';
$html1=file_get_html($url);
$content=array();
foreach($html1->find('div.story-box p') as $e)
{
$content=$e;
}
echo $content;
?>
為什么只顯示最后一行...想要在分配一個變量而不是$e之后顯示p標記中的所有內容
在循環中，您在每次迭代中都重新分配$content 。 您想要的是：
foreach($html1->find('div.story-box p') as $e)
{
$content[] =$e;
}
var_dump($content);
temp1.html
<html>
<head><title></title></head>
<body>
<div id="text">
<h2>Heading</h2>
<p>afsdfdfha adhfaksdhf adfhakhf adfhaskfdha fsahfkasdhfaasfdjhasdf ahdfkahsd</p>
<p>afsdfdfha adhfaksdhf adfhakhf adfhaskfdha fsahfkasdhfaasfdjhasdf ahdfkahsd</p>
<p>afsdfdfha adhfaksdhf adfhakhf adfhaskfdha fsahfkasdhfaasfdjhasdf ahdfkahsd</p>
<p>yuoyuouoyuoyuyu oyuiouioyuioyuyiouyoiy youyoiyuioyuioyuyoiuyiuyiyuioyu yuyiu</p>
</div>
</body>
</html
temp1.php
<?php
include("simplehtmldom_1_5/simple_html_dom.php");
$url = 'http://localhost/temp1.html';
$html=file_get_html($url);
$content=array();
$a="";
foreach($html->find('div[id=text] p') as $e)
{
$a .=$e->plaintext." ";
// echo $e->plaintext."<br>";
}
echo "$a";
?>
如果您對打印數組感到困惑（順便說一句，只需使用print_r() ），只需串聯字符串即可：
$contents = '';
foreach($html1->find('div.story-box p') as $e) {
$contents .= $e;
// or $contents .= $e . '<br/>';
}
echo $contents;
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