解析HTML頁面提取場到像數組：值=> option_text

Question

目前的情況：

我加載HTML頁面到VAR與的DomDocument

$dom = new DOMDocument('1.0', 'UTF-8'); 
@$dom->loadHTML($html); 

，我需要解析3個選項字段列表。該HTML看起來像這樣：

<li> 
    <select id="advertiser" name="advertiser[]" multiple="multiple" autocomplete="off">                   <option value="35" >Website Adv 1</option> 
    <option value="36" >Website Adv 1</option>                           <option value="41" >Website Adv 1</option> 
    <option value="45" >Website Adv 1</option> 
    </select> 
</li> 

現在我發現這堆代碼，但它不工作..

$xpath = new DOMXpath($dom); 
$options = $xpath->query("*/select[@name='advertiser[]']/option"); 
foreach ($options as $option) { 
    $optionValue = $option->getAttribute('value'); 
    $optionContent = $option->nodeValue; 
    echo "$optionValue and $optionContent\n"; 
} 

問題仍然是：

如何解析HTML頁面提取一個選項選擇的字段，如下所示：value => option_text

Answer 1

您發佈的代碼應該有效。你可以通過這個改變代碼

$dom = new DOMDocument('1.0', 'UTF-8'); 
$dom->loadHTML($html); 

$xpath = new DOMXpath($dom); 
$options = $xpath->query("*/select[@name='advertiser[]']/option"); 
$result = array(); 
foreach ($options as $option) { 
    $optionValue = $option->getAttribute('value'); 
    $optionContent = $option->nodeValue; 
    $result[$optionValue] = $optionContent; 
} 

print_r($result); 

加載到$ result數組中你想要的項目。

結果應該是：

Array 
(
    [35] => Website Adv 1 
    [36] => Website Adv 1 
    [41] => Website Adv 1 
    [45] => Website Adv 1 
)