Question

变量$ link中提到的链接重定向到产品页面。当我在浏览器中调用/打开它时它工作正常。但它在PHP file_get_contents函数中不起作用。

我的代码：

    $url = "750651";
    $link = "http://www.costco.com/CatalogSearch?storeId=10301&catalogId=10701&langId=-1&keyword=$url";
    $link = str_replace('&amp;','&',$link);
    $res = file_get_contents(html_entity_decode(urldecode($link)));

错误

Warning: file_get_contents(http://www.costco.com/CatalogSearch?storeId=10301&amp;catalogId=10701&amp;langId=-1&amp;keyword=750651): failed to open stream: HTTP request failed! HTTP/1.0 403 Forbidden

如何防止在file_get_contents函数中将&转换为& 我也尝试过以下代码，但没有成功

 $link = "http://www.costco.com/CatalogSearch?";
 $options = array("storeId"=>"10301","catalogId"=>"10701","langId"=>"-1","keyword"=>$url);
 $link .= http_build_query($options,'','&');
 $res = file_get_contents($link);

Answer 1

我还发现了替代功能。我希望这会充分使用。

function get_fcontent( $url,  $javascript_loop = 0, $timeout = 5 ) {
    $url = str_replace( "&amp;", "&", urldecode(trim($url)) );

    $cookie = tempnam ("/tmp", "CURLCOOKIE");
    $ch = curl_init();
    curl_setopt( $ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1" );
    curl_setopt( $ch, CURLOPT_URL, $url );
    curl_setopt( $ch, CURLOPT_COOKIEJAR, $cookie );
    curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
    curl_setopt( $ch, CURLOPT_ENCODING, "" );
    curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
    curl_setopt( $ch, CURLOPT_AUTOREFERER, true );
    curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false );    # required for https urls
    curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, $timeout );
    curl_setopt( $ch, CURLOPT_TIMEOUT, $timeout );
    curl_setopt( $ch, CURLOPT_MAXREDIRS, 10 );
    $content = curl_exec( $ch );
    $response = curl_getinfo( $ch );
    curl_close ( $ch );

    if ($response['http_code'] == 301 || $response['http_code'] == 302) {
        ini_set("user_agent", "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1");

        if ( $headers = get_headers($response['url']) ) {
            foreach( $headers as $value ) {
                if ( substr( strtolower($value), 0, 9 ) == "location:" )
                    return get_url( trim( substr( $value, 9, strlen($value) ) ) );
            }
        }
    }

    if (    ( preg_match("/>[[:space:]]+window\.location\.replace\('(.*)'\)/i", $content, $value) || preg_match("/>[[:space:]]+window\.location\=\"(.*)\"/i", $content, $value) ) && $javascript_loop < 5) {
        return get_url( $value[1], $javascript_loop+1 );
    } else {
        return array( $content, $response );
    }
}

查看结果

$lurl=get_fcontent($link);
echo $lurl[0];

来源https://stackoverflow.com/a/5402193/3466544

Answer 2

我用这种方式：

$myURL = 'http://www.costco.com/CatalogSearch?';   
$options = array("storedId"=>$10301,"câtlogId"=>10701,"langId"=>-1,"keyword"=>$url);
$myURL .= http_build_query($options,'','&');

$myData = file_get_contents("$myURL");

它运行良好。试试这个。

Answer 3

尝试不使用urldecode和entity_decode，或者在string_replacement

之前执行

$link = "http://www.costco.com/CatalogSearch?storeId=10301&catalogId=10701&langId=-1&keyword=$url";
$link = str_ireplace('&amp;','&', html_entity_decode(urldecode($link)));
$res = file_get_contents($link);

由于同源政策，您无法通过file_get_contents获取每个网站。站点所有者应该打开Access-Control-Allow-Origin以使其正常工作。但是，您可以通过CURL下载该网站，如下所示：

$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $link);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // if you want to follow redirects
$data = curl_exec($ch);
curl_close($ch);

PHP file_get_contents转换＆amp;进入＆amp;

3 个答案: