我需要使用网址的购物网站的标题和元标记以及图片标记。 这是我的代码，它使用亚马逊产品链接。但它不起作用，如：
获取代码的代码：
$url ="http://rads.stackoverflow.com/amzn/click/B009T9QCWI";
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$data = curl_exec($ch);
curl_close($ch);
$returned_content = $data;
$doc = new \DOMDocument();
@$doc->loadHTML($returned_content);
$nodes = $doc->getElementsByTagName("title");
//$title = $nodes->item(0)->nodeValue;
$product_title = str_replace("'", " ", $title);
$xml=simplexml_import_dom($doc);
$images=$xml->xpath("//img");
$j=0;
foreach($images as $img) {
$host = explode(":",$img["src"]);
$ht = $host[0];
if ($ht == "http" || $ht == "https" ) {
$info = pathinfo($img["src"]);
if (array_key_exists('extension', $info)) {
$extension = $info["extension"];
}
if ($extension == "jpg" || $extension == "jpeg") {
$imagesrc[] = $img["src"];
$j++;
$image[] = $img["src"] ;
}
}
}
$metas = $doc->getElementsByTagName('meta');
for ($i = 0; $i < $metas->length; $i++) {
$meta = $metas->item($i);
if ($meta->getAttribute('name') == 'description' || $meta->getAttribute('name') == 'Description') {
$description = $meta->getAttribute('content');
}
if ($meta->getAttribute('name') == 'keywords') {
$keywords = $meta->getAttribute('content');
}
}
if (empty($image)) {
$domarray[] = array('desc' => $description, 'title'=>$product_title);
print_r($domarray);
} else {
$domarray[] = array('img' =>$image, 'desc' => $description, 'title'=>$product_title);
print_r($domarray) ;
}
答案 0 :(得分：0)
为什么不使用simplehtmldom解析器。
示例：
require_once 'simple_html_dom.php';
$url ="http://rads.stackoverflow.com/amzn/click/B009T9QCWI";
$html = file_get_html( $url );
// all results stored in this array
$result = array();
// page title
$result[ 'title' ] = $html->find( 'title', 0 )->plaintext;
// get all meta tags, which have an attribute "name"
foreach( $html->find( 'meta[name]' ) as $meta ) {
$result[ 'meta' ][] = array(
'name' => $meta->name,
'content' => $meta->content
);
}
// get all images
foreach( $html->find( 'img' ) as $image ) {
$result[ 'image' ][] = $image->src;
}
print_r( $result );
<强>输出
Array
(
[title] => Amazon.com: Samsung Galaxy S III, Black 16GB (Verizon Wireless): Cell Phones & Accessories
[meta] => Array
(
[0] => Array
(
[name] => description
[content] => Shop cell phones and accessories at Amazon.com. You'll find great prices on cases, headsets, and the latest smartphones from carriers like Verizon, AT&T, and Sprint
)
[1] => Array
(
[name] => title
[content] => Amazon.com: Samsung Galaxy S III, Black 16GB (Verizon Wireless): Cell Phones & Accessories
)
[2] => Array
(
[name] => keywords
[content] => Samsung Galaxy S III, Black 16GB (Verizon Wireless),Samsung,Galaxy S III
)
)
[image] => Array
(
[0] => http://g-ecx.images-amazon.com/images/G/01/gno/beacon/BeaconSprite-US-01._V397411194_.png
[1] => http://g-ecx.images-amazon.com/images/G/01/x-locale/common/transparent-pixel._V386942464_.gif
[2] => http://g-ecx.images-amazon.com/images/G/01/x-locale/common/transparent-pixel._V386942464_.gif
[3] => http://ecx.images-amazon.com/images/I/41%2Bh%2BUmrcRL._SY300_.jpg
[4] => http://ecx.images-amazon.com/images/I/41%2Bh%2BUmrcRL._SL500_AA280_.jpg
[5] => http://g-ecx.images-amazon.com/images/G/01/icons/icon-offsite-sl-7069-t4._V171196157_.png
[6] => http://g-ecx.images-amazon.com/images/G/01/icons/icon-offsite-sl-7069-t4._V171196157_.png
[7] => http://ecx.images-amazon.com/images/I/41FBSaIC4AL._SL500_SS100_.jpg
[8] => http://ecx.images-amazon.com/images/I/41HGvd6-jwL._SL500_SS100_.jpg
[9] => http://ecx.images-amazon.com/images/I/51jiU%2BiYWUL._SL500_SS100_.jpg
[10] => http://ecx.images-amazon.com/images/I/317JogSYmkL._SL500_SS100_.jpg
[11] => http://ecx.images-amazon.com/images/I/41d6B11BDuL._SL500_SS100_.jpg
[12] => http://ecx.images-amazon.com/images/I/41a94BWHXbL._SL500_SS100_.jpg
[13] => http://g-ecx.images-amazon.com/images/G/01/wireless/detail-page/B009T9QCWI.main_SM.jpg
[14] => http://g-ecx.images-amazon.com/images/G/01/wireless/detail-page/B009T9QCWI.pt01_SM.jpg
[15] => http://g-ecx.images-amazon.com/images/G/01/wireless/detail-page/wireless-box-logo-verizon-box.jpg
[16] => http://g-ecx.images-amazon.com/images/G/01/th/aplus/a-plus_bottom-217._V180545591_.gif
[17] => http://g-ecx.images-amazon.com/images/G/01/wireless/detail-page/B009T9QCWI.pt02_SM.jpg
[18] => http://g-ecx.images-amazon.com/images/G/01/wireless/detail-page/amazon_app_suite_1_sma.jpg
[19] => http://g-ecx.images-amazon.com/images/G/01/wireless/detail-page/amazon_app_suite_5_sm.jpg
[20] => http://ecx.images-amazon.com/images/I/41HGvd6-jwL._SL75_SS50_.jpg
[21] => http://ecx.images-amazon.com/images/I/41FBSaIC4AL._SL75_SS50_.jpg
[22] => http://ecx.images-amazon.com/images/I/51jiU%2BiYWUL._SL75_SS50_.jpg
[23] => http://ecx.images-amazon.com/images/I/41a94BWHXbL._SL75_SS50_.jpg
[24] => http://g-ecx.images-amazon.com/images/G/01/x-locale/communities/reputation/suggestionbox._V192249929_.gif
[25] => http://g-ecx.images-amazon.com/images/G/01/icons/orange-arrow._V192570247_.gif
[26] => http://g-ecx.images-amazon.com/images/G/01/icons/orange-arrow._V192570247_.gif
[27] => http://g-ecx.images-amazon.com/images/G/01/icons/orange-arrow._V192570247_.gif
[28] => http://g-ecx.images-amazon.com/images/G/01/gno/images/general/navAmazonLogoFooter._V169459313_.gif
[29] => /gp/uedata/unsticky/182-7026578-6696341//ntpoffrw?noscript&id=158FKQCX6TYATFBQQW0V
)
)
你可以在一个循环中传递url并为所有人做同样的事情。为简单起见，我已将您正在进行的检查留在图像和元标记上。 希望它有所帮助。