‘xmlParseEntityRef：no name’在将xml加载到php文件时发出警告

我使用simplexml_load_file读取php中的xml。但是，当尝试加载xml时，它显示警告列表

Warning: simplexml_load_file() [function.simplexml-load-file]: <project orderno="6" campaign_name="International Relief & Development" project in /home/bluecard1/public_html/test.php on line 3    
Warning: simplexml_load_file() [function.simplexml-load-file]: ^ in /home/bluecard1/public_html/test.php on line 3    
Warning: simplexml_load_file() [function.simplexml-load-file]: http://..../index.php/site/projects/:15: parser error : xmlParseEntityRef: no name in /home/bluecard1/public_html/test.php on line 3

Warning: simplexml_load_file() [function.simplexml-load-file]: ional Relief & Development" project_id="313" client_name="International Relief & in /home/bluecard1/public_html/test.php on line 3    
Warning: simplexml_load_file() [function.simplexml-load-file]: ^ in /home/bluecard1/public_html/test.php on line 3    
Warning: simplexml_load_file() [function.simplexml-load-file]: http://..../index.php/site/projects/:15: parser error : xmlParseEntityRef: no name in /home/bluecard1/public_html/test.php on line 3

如何纠正以删除这些警告？

(XML是从url http：//…./index.php/site/projects&加载到test.php中的一个变量中生成的，我没有对index.php写入priveleges)

问题可能是“&”

$text=preg_replace('/&(?!#?[a-z0-9]+;)/','&',$text);

将摆脱“&”并用它的HTML代码版本替换它…试试。