如何使用PHP簡單的HTML DOM或捲曲

Question

這裏廢鋼一個div HTML標籤是什麼，我想要做 例爲例：

<div class='room'> 
<h1>This is a h1</h1> 
<p>This is a Paragraph</p> 
<h2>This is h2</h2> 
</div> 

從上面的emaple我想放棄的數據和標籤在數組中。 在結果中我想要一個數組包含： arr = [h1，p，h2]; 和另一個陣列： arr2 = [這是h1，這是段落，這是h2]

Answer 1

$str = <<<EOF 
<div class='room'> 
<h1>This is a h1</h1> 
<p>This is a Paragraph</p> 
<h2>This is h2</h2> 
</div> 
EOF; 

$html = str_get_html($str); 

foreach($html->find('.room *') as $el){ 
    $arr[] = $el->tag; 
    $arr2[] = $el->text(); 
} 

Answer 2

試試這個;

$str = "<div class='room'> 
<h1>This is a h1</h1> 
<p>This is a Paragraph</p> 
<h2>This is h2</h2> 
</div>"; 

$arr = explode(PHP_EOL, $str); 

$res =array(); 
Foreach($arr as $row){ 
    If(!strpos($row, "div") !== False){ 
     $res[substr($row, 1, strpos($row, ">")-1)] = strip_tags($row); 
    } 
} 

Var_dump($res); 

https://3v4l.org/8TkIT

它通過循環一個線的時間和創建與名爲鍵陣列。

編輯，如果有一個以上的房間，你可以把它多維像這樣：
https://3v4l.org/DdXVd

$str = "<div class='room'> 
<h1>This is a h1</h1> 
<p>This is a Paragraph</p> 
<h2>This is h2</h2> 
</div> 
<div class='room2'> 
<h1>This is a h1</h1> 
<p>This is a Paragraph</p> 
<h2>This is h2</h2> 
</div>"; 

$arr = explode(PHP_EOL, $str); 

$res =array(); 
Foreach($arr as $row){ 
    If(strpos($row, "div") !== False){ 
     $pos1 = strpos($row, "'")+1; 
     $room = substr($row, $pos1, strpos($row, "'", $pos1)-$pos1); 
    }Else{ 
     $pos1 = strpos($row, "<")+1; 
     $res[$room][substr($row, strpos($row, "<")+1, strpos($row, ">")-$pos1)] = trim(strip_tags($row)); 
    } 
} 

Var_dump($res); 

Answer 3

假設已知可以使用的元素domdocument的getelementsbytagname這樣的：

$html = "<div class='room'> 
<h1>This is a h1</h1> 
<p>This is a Paragraph</p> 
<h2>This is h2</h2> 
</div>"; 
$doc = new DOMDocument(); 
$doc->loadhtML($html); 
$elements = array(); 
$content = array(); 
function iterate_elements($array, $doc){ 
    global $elements, $content; 
    foreach($array as $element){ 
      $the_element = $doc->getElementsByTagName($element); 
      foreach($the_element as $target){ 
       $content[] = $target->textContent; 
       //$target->tagName;   
      } 
      if(!empty($the_element->length)) { 
       $elements[] = $element; 
     } 
    } 
} 
iterate_elements(array('h1','p', 'h2'), $doc); 
print_r($elements); 
print_r($content); 

演示：https://eval.in/825860

Answer 4

嘗試下面的代碼。

$html = "<div class='room'> 
<h1>This is a h1</h1> 
<p>This is a Paragraph</p> 
<h2>This is h2</h2> 
</div>"; 

$dom = new SimpleXMLElement($html); 

$values = array_filter(array_values((array) $dom), function ($i) { return ! is_array($i); }); 
$keys = array_filter(array_keys((array) $dom), function ($i) { return $i != '@attributes'; }); 

print_r($values); // This is a h1, This is a Paragraph, This is h2 
print_r($keys); // h1, p, h2 

我用array_filter從結果中刪除div標籤。