php - 使用php解析xml文件时出现问题。 URL 地址不包含 .xml 扩展名

Question

嘿伙计们。我正在尝试解析 xml 文件，以便从中提取一些数据并将其显示在网站上。但是，当我使用不以 .xml 扩展名结尾的 url 时，我无法对结果运行 foreach 循环。换句话说，当我使用这种网址时:

$url = http://www.example.com/some_xml_file.xml

我可以在它上面运行一个 foreach 循环，它的工作方式就像魅力一样。但这一次我必须处理这种类型的网址:

$url = http://www.example.com/?some_var=something&some=something

所以你可以清楚地看到它不包含 .xml 扩展名。它返回解析良好的结果，但我无法让 foreach 循环处理该结果，因此我无法从中提取任何数据。你能帮我解决这个问题吗？

我正在做的事情的示例:

$url = 'http://www.example.com/?some_var=something&some=somethinge';

    $sx = simplexml_load_file($url);

    foreach ($sx->response as $row)
    {
        echo $row['status'];

    }

这是 var_dump($sx) 的结果:

object(SimpleXMLElement)#334 (2) { ["@attributes"]=>  array(2) { ["status"]=>  string(2) "ok" ["version"]=>  string(3) "1.0" } ["events"]=>  object(SimpleXMLElement)#333 (2) { ["@attributes"]=>  array(3) { ["resultCount"]=>  string(1) "1" ["pageSize"]=>  string(2) "15" ["pageIndex"]=>  string(1) "0" } ["event"]=>  object(SimpleXMLElement)#338 (10) { ["@attributes"]=>  array(1) { ["id"]=>  string(6) "180085" } ["name"]=>  string(27) "Lady Gaga Monster Ball Tour" ["doordatetime"]=>  string(19) "2010-11-01T18:30:00" ["tickets"]=>  object(SimpleXMLElement)#337 (1) { ["ticket"]=>  array(5) { [0]=>  object(SimpleXMLElement)#339 (7) { ["@attributes"]=>  array(1) { ["id"]=>  string(6) "307902" } ["price"]=>  string(7) "£55.00" ["url"]=>  string(32) "http://www.gigjunkie.net/T307902" ["provider"]=>  string(12) "Ticketmaster" ["soldout"]=>  string(5) "false" ["ticketsavailable"]=>  string(4) "true" ["issecondary"]=>  string(5) "false" } [1]=>  object(SimpleXMLElement)#340 (7) { ["@attributes"]=>  array(1) { ["id"]=>  string(6) "426248" } ["price"]=>  string(7) "£82.00" ["url"]=>  string(32) "http://www.gigjunkie.net/T426248" ["provider"]=>  string(8) "Seatwave" ["soldout"]=>  string(5) "false" ["ticketsavailable"]=>  string(4) "true" ["issecondary"]=>  string(4) "true" } [2]=>  object(SimpleXMLElement)#437 (6) { ["@attributes"]=>  array(1) { ["id"]=>  string(6) "306230" } ["url"]=>  string(32) "http://www.gigjunkie.net/T306230" ["provider"]=>  string(7) "Viagogo" ["soldout"]=>  string(5) "false" ["ticketsavailable"]=>  string(4) "true" ["issecondary"]=>  string(4) "true" } [3]=>  object(SimpleXMLElement)#438 (6) { ["@attributes"]=>  array(1) { ["id"]=>  string(6) "325819" } ["url"]=>  string(32) "http://www.gigjunkie.net/T325819" ["provider"]=>  string(15) "WorldTicketShop" ["soldout"]=>  string(5) "false" ["ticketsavailable"]=>  string(4) "true" ["issecondary"]=>  string(4) "true" } [4]=>  object(SimpleXMLElement)#342 (6) { ["@attributes"]=>  array(1) { ["id"]=>  string(6) "402593" } ["url"]=>  string(32) "http://www.gigjunkie.net/T402593" ["provider"]=>  string(14) "Empire Tickets" ["soldout"]=>  string(5) "false" ["ticketsavailable"]=>  string(4) "true" ["issecondary"]=>  string(4) "true" } } } ["venue"]=>  object(SimpleXMLElement)#336 (9) { ["@attributes"]=>  array(1) { ["id"]=>  string(4) "1479" } ["name"]=>  string(13) "Odyssey Arena" ["street"]=>  string(13) "2 Queens Quay" ["town"]=>  string(7) "Belfast" ["nameandtown"]=>  string(22) "Odyssey Arena, Belfast" ["country"]=>  string(2) "GB" ["gjurl"]=>  string(90) "http://www.gigjunkie.net/gigs/Lady-Gaga-Monster-Ball-Tour/Odyssey-Arena/01-Nov-2010/180085" ["latitude"]=>  string(9) "54.602158" ["longitude"]=>  string(9) "-5.918215" } ["gjurl"]=>  string(90) "http://www.gigjunkie.net/gigs/Lady-Gaga-Monster-Ball-Tour/Odyssey-Arena/01-Nov-2010/180085" ["artists"]=>  object(SimpleXMLElement)#341 (1) { ["artist"]=>  object(SimpleXMLElement)#332 (5) { ["@attributes"]=>  array(2) { ["id"]=>  string(5) "54194" ["isprimary"]=>  string(4) "true" } ["name"]=>  string(9) "Lady Gaga" ["gjurl"]=>  string(42) "http://www.gigjunkie.net/artists/Lady-Gaga" ["thumbnailimage"]=>  string(68) "http://images.gigjunkie.net/f5376fab-cd01-4432-9205-8a1d0be41437.jpg" ["mediumimage"]=>  string(68) "http://images.gigjunkie.net/efbe624c-b63d-452a-a89b-221e846147ab.jpg" } } ["iscancelled"]=>  string(5) "false" ["genre"]=>  string(8) "Rock/Pop" ["image"]=>  string(68) "http://images.gigjunkie.net/efbe624c-b63d-452a-a89b-221e846147ab.jpg" } } } 

Answer 1

只需使用simplexml_load_file函数，如果无法解析xml，它将返回False

<?php
$url = 'http://www.example.com/?some_var=something&some=something'
if(simplexml_load_file($url)){
    // is a xml
else {
    // no xml found
}
?>

您可以在这里找到更多信息:http://www.php.net/manual/en/function.simplexml-load-file.php