我们正在使用PHP编制期刊索引。我们有日记元数据文件。我正在尝试使用PHP SimpleXML解析它，但是却遇到很多错误。
警告：simplexml_load_string（）：实体：第19行：分析器错误： 开头和结尾的标签不匹配：XUI第19行和BB在***的第62行
警告：simplexml_load_string（）：s; S透视
警告：simplexml_load_string（）：第62行的***中的^
警告：simplexml_load_string（）：实体：第44行：分析器错误： 标签开头和结尾不匹配：BB行4和D行中的***在62行
警告：simplexml_load_string（）：第33版。密苏里州圣路易斯：爱思唯尔 卫生科学； 2016。
警告：simplexml_load_string（）：第62行的***中的^
警告：simplexml_load_string（）：实体：第61行：分析器错误： 开头和结尾的标签不匹配：XUI第61行和BB在***的第62行
警告：simplexml_load_string（）：R编辑者
警告：simplexml_load_string（）：第62行的***中的^
警告：simplexml_load_string（）：实体：第74行：解析器错误： 开头和结尾的标签不匹配：BB行46和D行中的***在62行上
当我查看该文件时，它看起来像一个XML文件。我怎么用PHP解析它？
我使用的代码是：
$file = file_get_contents('xyz.0');
$file = utf8_decode($file);
$file = str_replace("&", "", $file); //For problems with & character
//libxml_use_internal_errors(true);
$xml = simplexml_load_string($file, 'SimpleXMLElement', LIBXML_NOCDATA);
从文件中采样XML代码：
<!DOCTYPE dg SYSTEM "ovidbase.dtd"> <DG><COVER NAME="G1893697-201804000-00000"> <D AN="01893697-201804000-00001" V="2009.2F" FILE="G1893697-201804000-00001"> <BB> <TG> <TI>Oh Blood Pressure Measurements—Where Art Thou?</TI></TG> <BY> <PN><FN>G.</FN><MN>Stephen</MN><SN>Morris</SN><DEG>PT, PhD, FACSM</DEG></PN> <AF><P>President, Oncology Section of the APTA; and Professor, Department of Physical Therapy, Wingate University, Wingate, NC</P></AF> <BT><P><E T="B">Correspondence:</E> G. Stephen Morris, PT, PhD, FACSM, Department of Physical Therapy, Wingate University, 215 N. Camden Rd, Wingate, NC 28174 (<URL>s.morris@wingate.edu</URL>).</P><P>The author declares no conflicts of interest.</P></BT></BY> <SO> <PB>Rehabilitation Oncology</PB> <ISN>2168-3808</ISN> <DA><MO>April</MO><YR>2018</YR></DA> <V>36</V> <IS><IP>2</IP></IS> <PG>79–80</PG></SO> <CP>© 2018 Oncology Section, APTA.</CP> <DT>PRESIDENT'S PERSPECTIVE</DT><XUI XDB="pub-doi" UI="10.1097/01.REO.0000000000000118"></BB> <BD> <LV1><HD>&NA;</HD> <P>physical therapy?</P></LV1> <LV1><SG><SGN>G. Stephen Morris, PT, PhD, FACSM</SGN></SG></LV1></BD> <ED> <EDS><HD>REFERENCES</HD> <RF ID="R1-1">1. <JRF><DRF>Arena SK, Reyes A, Rolf M. Behaviors, and knowledge of outpatient physical therapists. Cardiopulm Phys Ther J. 2018;9:3–12.</DRF><PN><FN>SK</FN><SN>Arena</SN></PN><PN><FN>A</FN><SN>Reyes</SN></PN><PN><FN>M</FN><SN>Rolf</SN></PN><TI>Behaviors, and knowledge of outpatient physical therapists</TI><PB>Cardiopulm Phys Ther J</PB><DA><YR>2018</YR></DA><V>9</V><PG>3–12</PG></JRF></RF> <RF ID="R2-1">2. <URF>US Preventative Services Task Force. High blood pressure in adults: screening. https://www.uspreventiveservicestaskforce.org/Page/Document/RecommendationStatementFinal/high-blood-pressure-in-adults-screening. Accessed January 12, 2018.</URF></RF> <RF ID="R3-1">3. <URF>Centers for Disease Control and Prevention. High blood pressure fact sheet. https://www.cdc.gov/bloodpressure/facts.htm. Accessed January 12, 2018.</URF></RF> <RF ID="R4-1">4. <JRF><DRF>Lein DH Jr, Clark D, Graham C, Perez P, Morris D. A model to integrate health promotion and wellness in physical therapist practice: development and validation. Phys Ther. 2017;97(12):1169–1181.</DRF><PN><FN>DH</FN><SN>Lein</SN></PN><PN><FN>D</FN><SN>Clark</SN></PN><PN><FN>C</FN><SN>Graham</SN></PN><PN><FN>P</FN><SN>Perez</SN></PN><PN><FN>D</FN><SN>Morris</SN></PN><TI>A model to integrate health promotion and wellness in physical therapist practice: development and validation</TI><PB>Phys Ther</PB><DA><YR>2017</YR></DA><V>97</V><PG>1169–1181</PG></JRF></RF> <RF ID="R5-1">5. <URF>Riebe D, ed. ACSM's Guidelines for Exercise Testing and Prescription. 10th ed. Baltimore, Maryland: Wolters Kluwer; 2018.</URF></RF> <RF ID="R6-1">6. <JRF><DRF>Pickering TG, Hall JE, Appel LJ, et al Recommendations for blood pressure measurement in humans and experimental animals: part 1: blood pressure measurement in humans: a statement for professionals from the Subcommittee of Professional and Public Education of the American Heart Association Council on High Blood Pressure Research. Circulation. 2005;111(5):697–716.</DRF><PN><FN>TG</FN><SN>Pickering</SN></PN><PN><FN>JE</FN><SN>Hall</SN></PN><PN><FN>LJ</FN><SN>Appel</SN></PN><TI>Recommendations for blood pressure measurement in humans and experimental animals: part 1: blood pressure measurement in humans: a statement for professionals from the Subcommittee of Professional and Public Education of the American Heart Association Council on High Blood Pressure Research</TI><PB>Circulation</PB><DA><YR>2005</YR></DA><V>111</V><PG>697–716</PG></JRF></RF> <RF ID="R7-1">7. <JRF><DRF>Rabbia F, Testa E, Rabbia S, et al Effectiveness of blood pressure educational and evaluation program for the improvement of measurement accuracy among nurses. High Blood Press Cardiovasc Prev. 2013;20(2):77–80.</DRF><PN><FN>F</FN><SN>Rabbia</SN></PN><PN><FN>E</FN><SN>Testa</SN></PN><PN><FN>S</FN><SN>Rabbia</SN></PN><TI>Effectiveness of blood pressure educational and evaluation program for the improvement of measurement accuracy among nurses</TI><PB>High Blood Press Cardiovasc Prev</PB><DA><YR>2013</YR></DA><V>20</V><PG>77–80</PG></JRF></RF> <RF ID="R8-1">8. <JRF><DRF>Frese EM, Richter RR, Burlis TV. Self-reported measurement of heart rate and blood pressure in patients by physical therapy clinical instructors. Phys Ther. 2002;82(12):1192–1200.</DRF><PN><FN>EM</FN><SN>Frese</SN></PN><PN><FN>RR</FN><SN>Richter</SN></PN><PN><FN>TV</FN><SN>Burlis</SN></PN><TI>Self-reported measurement of heart rate and blood pressure in patients by physical therapy clinical instructors</TI><PB>Phys Ther</PB><DA><YR>2002</YR></DA><V>82</V><PG>1192–1200</PG></JRF></RF> <RF ID="R9-1">9. <JRF><DRF>Mouhavar E, Salahudeen A, Yeh ETH. Hypertension in cancer patients. Tex Heart Inst J. 2011;38(3):263–265.</DRF><PN><FN>E</FN><SN>Mouhavar</SN></PN><PN><FN>A</FN><SN>Salahudeen</SN></PN><PN><FN>ETH</FN><SN>Yeh</SN></PN><TI>Hypertension in cancer patients</TI><PB>Tex Heart Inst J</PB><DA><YR>2011</YR></DA><V>38</V><PG>263–265</PG></JRF></RF> <RF ID="R10-1">10. <URF>Gahart BL, Nazareno AR, eds. Intravenous Medications: A Handbook for Nurses and Health Professionals. 33rd ed. St. Louis, MO: Elsevier Health Sciences;
2016.</URF></RF></EDS></ED></D> <D AN="01893697-201804000-00002" V="2009.2F" FILE="G1893697-201804000-00002"> <BB> <TG> <TI>In 2018 “Spring Is the Time of Plans and Projects”</TI></TG> <BY> <PN><FN>Lucinda</FN><MN>(Cindy)</MN><SN>Pfalzer</SN><DEG>PT, PhD, FACSM, FAPTA</DEG></PN> <AF><P>Editor of <E T="I">Oncology Rehabilitation</E> and Emeriti Professor, Physical Therapy Department, University of Michigan-Flint, Flint, MI</P></AF> <BT><P><E T="B">Correspondence:</E> Lucinda (Cindy) Pfalzer, PT, PhD, FACSM, FAPTA, Physical Therapy Department, University of Michigan-Flint, 2157 WSW Bldg, Flint, MI 48502 (<URL>cpfalzer@umich.edu</URL>).</P><P>The author declares no conflicts of interest.</P></BT></BY> <SO> <PB>Rehabilitation Oncology</PB> <ISN>2168-3808</ISN> <DA><MO>April</MO><YR>2018</YR></DA> <V>36</V> <IS><IP>2</IP></IS> <PG>81–82</PG></SO> <CP>© 2018 Oncology Section, APTA.</CP> <DT>LETTER TO THE EDITOR</DT><XUI XDB="pub-doi" UI="10.1097/01.REO.0000000000000119"></BB> <BD>
您可以从here下载xml文件。
谢谢
编辑：这与问题XML parser error: entity not defined不同。此文件是在多年前（2000年代等）生成的。我不会生成此文件，我只会尝试解析它们并获取元数据。
编辑2：对不起，我还尝试使用Dom Parser进行解析，并在创建帖子时添加了来自其中的错误。现在，我添加了SimpleXML错误。
答案 0 :(得分：0)
该文件不符合XML规范，有一些东西，例如未知实体和未关闭的标签。
用空格替换Exception in thread "main" java.lang.NoClassDefFoundError: com/teamdev/jxbrowser/chromium/PermissionHandler
at main.Main.main(Main.java:8)
Caused by: java.lang.ClassNotFoundException: com.teamdev.jxbrowser.chromium.PermissionHandler
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 1 more
可以忽略实体，以解决其他一些问题，这是使用正则表达式整理标签的情况（我不是正则表达式专家，但是替换需要&并将其转换为<COVER ...>）...
<COVER ... />