我具有以下密钥,但是在尝试运行代码时出现apache错误。
<xsl:key name="dt" match="//eprint[substring(date,1,4) >= $year]" use="substring(date,1,4)" />
我得到的错误是:
[Thu Jul 12 10:51:18.724468 2018] [php7:warn] [pid 24089] [client 127.0.0.1:34808] PHP Warning: XSLTProcessor::importStylesheet(): Forbidden variable in /home/david/Documents/staffpub/inc/staff.php on line 54, referer: http://localhost:81/test_jsonp.html
[Thu Jul 12 10:51:18.724614 2018] [php7:warn] [pid 24089] [client 127.0.0.1:34808] PHP Warning: XSLTProcessor::importStylesheet(): compilation error: file /home/david/Documents/staffpub/inc/sorts/year.xsl line 5 element key in /home/david/Documents/staffpub/inc/staff.php on line 54, referer: http://localhost:81/test_jsonp.html
[Thu Jul 12 10:51:18.724634 2018] [php7:warn] [pid 24089] [client 127.0.0.1:34808] PHP Warning: XSLTProcessor::importStylesheet(): xsl:key : 'match' pattern compilation failed '//eprint[substring(date,1,4) >= $year]' in /home/david/Documents/staffpub/inc/staff.php on line 54, referer: http://localhost:81/test_jsonp.html
[Thu Jul 12 10:51:18.732938 2018] [php7:warn] [pid 24089] [client 127.0.0.1:34808] PHP Warning: XSLTProcessor::transformToXml(): No stylesheet associated to this object in /home/david/Documents/staffpub/inc/staff.php on line 59, referer: http://localhost:81/test_jsonp.html
我想密钥设置有问题,但是我不确定是什么。
有人能指出我正确的方向吗?
一个示例数据集是
<?xml version='1.0' encoding='utf-8'?>
<eprints xmlns='http://eprints.org/ep2/data/2.0'>
<eprint id='http://dsfdsfs'>
<eprintid>3424243242423</eprintid>
<date>2012-12</date>
</eprint>