Invalid argument supplied 的错误

[jellday]

<?
$xml = @simplexml_load_file('http://newsrss.bbc.co.uk/weather/forecast/2076/Next3DaysRSS.xml') 
 or die();
$ba=array();
$key = 0;
foreach( $xml->channel->item as $item )
{
...

在本地调试没事, 上传到服务器, 出现 PHP Warning: Invalid argument supplied for foreach() in ***.php on line 6

请问foreach( $xml->channel->item as $item ) 这句错在哪里?

[ghostwuboy]

if (is_array($xml->channel->item)) {
foreach( $xml->channel->item as $item )
{
...


}

你未判断$xml->channel->item这是不是一个数组

$xml = @simplexml_load_file('http://newsrss.bbc.co.uk/weather/forecast/2076/Next3DaysRSS.xml')
把@去掉，就会报出警告和错误