'xmlParseEntityRef: no name' warnings whil

问题:

I am reading an xml in php using simplexml_load_file. However while trying to load the xml it displays a list of warnings

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

How do I rectify to remove these warnings?

(XML is generated from url http://..../index.php/site/projects & loaded into a variable in the test.php. I dont have write priveleges to index.php)

回答1:

The XML is most probably invalid.

The problem could be the "&"

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

will get rid of the "&" and replace it with it's HTML code version...give it a try.

回答2:

Found this here ...

Problem: An XML parser returns the error “xmlParseEntityRef: noname”

Cause: There is a stray ‘&’ (ampersand character) somewhere in the XML text eg. some text & some more text

Solution:

• Solution 1: Remove the ampersand.
• Solution 2: Encode the ampersand (that is replace the '&' character with '& amp;' ). Remember to Decode when reading the XML text.
• Solution 3: Use CDATA sections (text inside a CDATA section will be ignored by the parser.) eg. <![CDATA[some text & some more text]]>

Note: ‘&’ ‘<' '>‘ will all give problems if not handled correctly.

回答3:

Try to clean the HTML first using this function:

$html = htmlspecialchars($html);

Special chars are usually represented differently in HTML and it might be confusing for the compiler. Like & becomes &.

回答4:

PROBLEM

• PHP function simplexml_load_file is throwing parsing error parser error : xmlParseEntityRef while trying to load the XML file from a URL.

CAUSE

• XML returned by the URL is not a valid XML. It contains & value instead of &. It is quite possible that there are other errors which aren't obvious at this point of time.

THINGS OUT OF OUR CONTROL

• Ideally, we should make sure that a valid XML is feed into PHP simplexml_load_file function, but it looks like we don't have any control over how the XML is created.
• It is also not possible to force simplexml_load_file to process an invalid XML file. It does not leave us with many options, other than fixing the XML file itself.

POSSIBLE SOLUTION

Convert Invalid XML to Valid XML. It can be done using PHP tidy extension. Further instructions can be found from http://php.net/manual/en/book.tidy.php

Once you are sure that the extension exists or is installed, please do the following.

/**
 * As per the question asked, the URL is loaded into a variable first, 
 * which we can assume to be $xml
 */
$xml = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<project orderno="6" campaign_name="International Relief & Development for under developed nations">
    <invalid-data>Some other data containing & in it</invalid-data>
    <unclosed-tag>
</project>
XML;

/**
 * Whenever we use tidy it is best to pass some configuration options 
 * similar to $tidyConfig. In this particular case we are making sure that
 * tidy understands that our input and output is XML.
 */
$tidyConfig = array (
    'indent' => true,
    'input-xml' => true, 
    'output-xml' => true,
    'wrap' => 200
);

/**
 * Now we can use tidy to parse the string and then repair it.
 */
$tidy = new tidy;
$tidy->parseString($xml, $tidyConfig, 'utf8');
$tidy->cleanRepair();

/**
 * If we try to output the repaired XML string by echoing $tidy it should look like. 

 <?xml version="1.0" encoding="utf-8"?>
 <project orderno="6" campaign_name="International Relief &amp; Development for under developed nations">
      <invalid-data>Some other data containing &amp; in it</invalid-data>
      <unclosed-tag></unclosed-tag>
 </project> 

 * As you can see that & is now fixed in campaign_name attribute 
 * and also with-in invalid-data element. You can also see that the   
 * <unclosed-tag> which didn't had a close tag, has been fixed too.
 */
echo $tidy;

/**
 * Now when we try to use simplexml_load_string to load the clean XML. When we
 * try to print_r it should look something like below.

 SimpleXMLElement Object
(
    [@attributes] => Array
        (
            [orderno] => 6
            [campaign_name] => International Relief & Development for under developed nations
        )

    [invalid-data] => Some other data containing & in it
    [unclosed-tag] => SimpleXMLElement Object
        (
        )

)

 */
 $simpleXmlElement = simplexml_load_string($tidy);
 print_r($simpleXmlElement);

CAUTION

The developer should try to compare the invalid XML with a valid XML (generated by tidy), to see there are no adverse side effects after using tidy. Tidy does an extremely good job of doing it correctly, but it never hurts to see it visually and to be 100% sure. In our case it should be as simple as comparing $xml with $tidy.

回答5:

The XML is invalid.

<![CDATA[ 
{INVALID XML}
]]> 

CDATA should be wrapped around all special XML characters, as per W3C

回答6:

I use a combined version :

strip_tags(preg_replace("/&(?!#?[a-z0-9]+;)/", "&",$textorhtml))

回答7:

This is in deed due to characters messing around with the data. Using htmlentities($yourText) worked for me (I had html code inside the xml document). See http://uk3.php.net/htmlentities.

回答8:

This solve my problème:

$description = strip_tags($value['Description']);
$description=preg_replace('/&(?!#?[a-z0-9]+;)/', '&', $description);
$description= preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/", "\n", $description);
$description=str_replace(' & ', ' & ', html_entity_decode((htmlspecialchars_decode($description))));

回答9:

If you are getting this issue with opencart try editing

catalog/controller/extension/feed/google_sitemap.php For More info and How to do it refer this: xmlparseentityref-no-name-error