如何在PHP中解析OFX(版本1.0.2)文件？

我有一个从 Citibank下载的 OFX文件,这个文件有一个在 http://www.ofx.net/DownloadPage/Files/ofx102spec.zip定义的DTD(文件OFXBANK.DTD),OFX文件似乎是 SGML有效.
我正在尝试使用PHP 5.4.13的 DomDocument,但是我收到了几个警告并且文件未被解析.我的代码是：

$file = "source/ACCT_013.OFX";
$dtd = "source/ofx102spec/OFXBANK.DTD";
$doc = new DomDocument();
$doc->loadHTMLFile($file);
$doc->schemaValidate($dtd);
$dom->validateOnParse = true;

OFX文件以：

OFXHEADER:100
DATA:OFXSGML
VERSION:102
Security:NONE
ENCODING:USASCII
CHARSET:1252
COMPRESSION:NONE
OLDFILEUID:NONE
NEWFILEUID:NONE

<OFX>
<SIGNONMSGSRSV1>
<SONRS>
<STATUS>
<CODE>0
<SEVERITY>INFO
</STATUS>
<DTSERVER>20130331073401
<LANGUAGE>SPA
</SONRS>
</SIGNONMSGSRSV1>
<BANKMSGSRSV1>
<STMTTRNRS>
<TRNUID>0
<STATUS>
<CODE>0
<SEVERITY>INFO
</STATUS>
<STMTRS>
<CURDEF>cop
<BANKACCTFROM> ...

我打开安装和使用Server(Centos)中的任何程序来从PHP调用.

PD：这个课程http://www.phpclasses.org/package/5778-PHP-Parse-and-extract-financial-records-from-OFX-files.html对我不起作用.

首先,即使XML是SGML的子集,有效的SGML文件也不能是格式良好的XML文件. XML更严格,不使用SGML提供的所有功能.

由于DOMDocument是基于XML(而不是SGML),因此它并不真正兼容.

在该问题旁边,请参阅Ofexfin1.doc中的2.2 Open Financial Exchange Headers.它为您解释了这一点

The contents of an Open Financial Exchange file consist of a simple set of headers followed by contents defined by that header

进一步说：

A blank line follows the last header. Then (for type OFXSGML),the SGML-readable data begins with the <OFX> tag.

因此,找到第一个空行并剥离每个空格直到那里.然后通过首先将SGML转换为XML将SGML部分加载到DOMDocument中：

$source = fopen('file.ofx','r');
if (!$source) {
    throw new Exception('Unable to open OFX file.');
}

// skip headers of OFX file
$headers = array();
$charsets = array(
    1252 => 'WINDOWS-1251',);
while(!feof($source)) {
    $line = trim(fgets($source));
    if ($line === '') {
        break;
    }
    list($header,$value) = explode(':',$line,2);
    $headers[$header] = $value;
}

$buffer = '';

// dead-cheap SGML to XML conversion
// see as well http://www.hanselman.com/blog/PostprocessingAutoClosedSGMLTagsWithTheSGMLReader.aspx
while(!feof($source)) {

    $line = trim(fgets($source));
    if ($line === '') continue;

    $line = iconv($charsets[$headers['CHARSET']],'UTF-8',$line);
    if (substr($line,-1,1) !== '>') {
        list($tag) = explode('>',2);
        $line .= '</' . substr($tag,1) . '>';
    }
    $buffer .= $line ."\n";
}

// use DOMDocument with non-standard recover mode
$doc = new DOMDocument();
$doc->recover = true;
$doc->preserveWhiteSpace = false;
$doc->formatOutput = true;
$save = libxml_use_internal_errors(true);
$doc->loadXML($buffer);
libxml_use_internal_errors($save);

echo $doc->saveXML();

然后,此代码示例输出以下(重新格式化的)XML,该XML还显示DOMDocument正确加载数据：

<?xml version="1.0"?>
<OFX>
  <SIGNONMSGSRSV1>
    <SONRS>
      <STATUS>
        <CODE>0</CODE>
        <SEVERITY>INFO</SEVERITY>
      </STATUS>
      <DTSERVER>20130331073401</DTSERVER>
      <LANGUAGE>SPA</LANGUAGE>
    </SONRS>
  </SIGNONMSGSRSV1>
  <BANKMSGSRSV1>
    <STMTTRNRS>
      <TRNUID>0</TRNUID>
      <STATUS>
        <CODE>0</CODE>
        <SEVERITY>INFO</SEVERITY>
      </STATUS>
      <STMTRS><CURDEF>cop</CURDEF><BANKACCTFROM> ...</BANKACCTFROM>
</STMTRS>
    </STMTTRNRS>
  </BANKMSGSRSV1>
</OFX>

我不知道这是否可以针对DTD进行验证.也许这有效.此外,如果SGML没有使用同一行上的标记值(并且每行只需要一个元素),那么这个脆弱的转换将会中断.