返回数组出现递归？解决办法

2012-03-11

返回数组出现递归？----------PHP----------$mail_list parse_xml_config($inx, mailindex)$receives

返回数组出现递归？
----------PHP----------
$mail_list = parse_xml_config($inx, "mailindex");
$receives = $mail_list['datas']['data'];
$sumCount = count($receives); //当前邮箱中的邮件总数
echo "count-->>$sumCount<br/>";
print_r($receives);
---------XML-----------
<?xml version="1.0" encoding="utf-8"?>
<mailindex>
<datas>
<data>
<Return-Path><anonymous@214.netchina.com.cn></Return-Path>
<Delivered-To>yushuai.niu@214.netchina.com.cn</Delivered-To>
<Received>(ncmail 843 invoked by uid 401); 027 Feb 2012 22:43:50 -0000</Received>
<Date>027 Feb 2012 22:43:50 -0000</Date>
<Message-ID><20120227224350.842.ncmail@214.netchina.com.cn></Message-ID>
<To>yushuai.niu@214.netchina.com.cn</To>
<Subject>hhh</Subject>
<X-PHP-Originating-Script>0:send_mode_class.php</X-PHP-Originating-Script>
<From>yushuai.niu@214.netchina.com.cn</From>
<X-Level>秘密</X-Level>
<X-Encrypt>----====_1330382630_====----</X-Encrypt>
<MIME-version>1.0</MIME-version>
<Content-type>multipart/mixed;boundary="--==================_117335625==_"</Content-type>
<Time>2012-02-27 22:43:50</Time>
<Size>24.16 KB</Size>
<Attachs>
<attach>
<id>2</id>
<name>netchina_1 ReleasedBy_sean(Data_2012-2-21).doc</name>
<level>秘密</level>
</attach>
</Attachs>
<bodyId>2</bodyId>
</data>
<data>
<Return-Path><anonymous@214.netchina.com.cn></Return-Path>
<Delivered-To>yushuai.niu@214.netchina.com.cn</Delivered-To>
<Received>(ncmail 23267 invoked by uid 401); 027 Feb 2012 20:21:57 -0000</Received>
<Date>027 Feb 2012 20:21:57 -0000</Date>
<Message-ID><20120227202157.23265.ncmail@214.netchina.com.cn></Message-ID>
<To>yushuai.niu@214.netchina.com.cn</To>
<Subject>w-inx-2</Subject>
<X-PHP-Originating-Script>0:send_mode_class.php</X-PHP-Originating-Script>
<From>yushuai.niu@214.netchina.com.cn</From>
<X-Level>绝密</X-Level>
<X-Encrypt>----====_1330374117_====----</X-Encrypt>
<MIME-version>1.0</MIME-version>
<Content-type>multipart/mixed;boundary="--==================_783205184==_"</Content-type>
<Time>2012-02-27 20:21:57</Time>
<Size>42.06 KB</Size>

$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "cdata");

// Read configuration file.
$data = file_get_contents($cffile);
if (FALSE === $data)
die("Error: 不能打开 XML 文件\n");

// Detect and set output character encoding. Default output encoding is UTF-8
if (preg_match('/<?xml.*encoding=[\'"](.*?)[\'"].*?>/m', $data, $m)) {
$encoding = strtoupper($m[1]);
xml_parser_set_option($xml_parser, XML_OPTION_TARGET_ENCODING, $encoding);
}

// Parse configuration.
if (!xml_parse($xml_parser, $data)) {
die(sprintf("XML error: %s at line %d\n",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
}

xml_parser_free($xml_parser);

if (!$config[$rootobj]) {
die("XML error: $rootobj 根不存在!\n");
}

// Remember encoding
$config[$rootobj]['encoding'] = $encoding;

return $config[$rootobj];
}

-------------
为什么返回的数组$mail_list会是递归出现的？xml解析是正确的啊，要不然也不会解出数组了。但是哪出问题了呢？

[解决办法]

PHP code

$xml = <<< XML<?xml version="1.0" encoding="utf-8"?><mailindex>  <datas>  <data>  <Return-Path>&lt;anonymous@214.netchina.com.cn&gt;</Return-Path>  <Delivered-To>yushuai.niu@214.netchina.com.cn</Delivered-To>  <Received>(ncmail 843 invoked by uid 401); 027 Feb 2012 22:43:50 -0000</Received>  <Date>027 Feb 2012 22:43:50 -0000</Date>  <Message-ID>&lt;20120227224350.842.ncmail@214.netchina.com.cn&gt;</Message-ID>  <To>yushuai.niu@214.netchina.com.cn</To>  <Subject>hhh</Subject>  <X-PHP-Originating-Script>0:send_mode_class.php</X-PHP-Originating-Script>  <From>yushuai.niu@214.netchina.com.cn</From>  <X-Level>秘密</X-Level>  <X-Encrypt>----====_1330382630_====----</X-Encrypt>  <MIME-version>1.0</MIME-version>  <Content-type>multipart/mixed;boundary=&quot;--==================_117335625==_&quot;</Content-type>  <Time>2012-02-27 22:43:50</Time>  <Size>24.16 KB</Size>  <Attachs>  <attach>  <id>2</id>  <name>netchina_1 ReleasedBy_sean(Data_2012-2-21).doc</name>  <level>秘密</level>  </attach>  </Attachs>  <bodyId>2</bodyId>  </data>  <data>  <Return-Path>&lt;anonymous@214.netchina.com.cn&gt;</Return-Path>  <Delivered-To>yushuai.niu@214.netchina.com.cn</Delivered-To>  <Received>(ncmail 23267 invoked by uid 401); 027 Feb 2012 20:21:57 -0000</Received>  <Date>027 Feb 2012 20:21:57 -0000</Date>  <Message-ID>&lt;20120227202157.23265.ncmail@214.netchina.com.cn&gt;</Message-ID>  <To>yushuai.niu@214.netchina.com.cn</To>  <Subject>w-inx-2</Subject>  <X-PHP-Originating-Script>0:send_mode_class.php</X-PHP-Originating-Script>  <From>yushuai.niu@214.netchina.com.cn</From>  <X-Level>绝密</X-Level>  <X-Encrypt>----====_1330374117_====----</X-Encrypt>  <MIME-version>1.0</MIME-version>  <Content-type>multipart/mixed;boundary=&quot;--==================_783205184==_&quot;</Content-type>  <Time>2012-02-27 20:21:57</Time>  <Size>42.06 KB</Size>  <Attachs>  <attach>  <id>2</id>  <name>2012_2_1_15_15.doc</name>  <level>绝密</level>  </attach>  <attach>  <id>3</id>  <name>netchina.doc</name>  <level>绝密</level>  </attach>  </Attachs>  <bodyId>3</bodyId>  </data>  </datas></mailindex>XML;function parse_xml_config($cffile, $rootobj) {global $depth, $curpath, $config, $havedata, $listtags;$config = array();$curpath = array();$depth = 0;$havedata = 0;$encoding = "UTF-8"; // PHP default// Create XML parser and initialize handler.$xml_parser = xml_parser_create();xml_set_element_handler($xml_parser, "startElement", "endElement");xml_set_character_data_handler($xml_parser, "cdata");// Read configuration file.//$data = file_get_contents($cffile);$data = $cffile;if (FALSE === $data)die("Error: 不能打开 XML 文件\n");// Detect and set output character encoding. Default output encoding is UTF-8if (preg_match('/<?xml.*encoding=[\'"](.*?)[\'"].*?>/m', $data, $m)) {$encoding = strtoupper($m[1]);xml_parser_set_option($xml_parser, XML_OPTION_TARGET_ENCODING, $encoding);}// Parse configuration.if (!xml_parse($xml_parser, $data)) {die(sprintf("XML error: %s at line %d\n",xml_error_string(xml_get_error_code($xml_parser)),xml_get_current_line_number($xml_parser)));}xml_parser_free($xml_parser);if (!$config[$rootobj]) {die("XML error: $rootobj 根不存在!\n");}// Remember encoding$config[$rootobj]['encoding'] = $encoding;return $config[$rootobj];}$listtags = explode(" ", "list data attach user");function startElement($parser, $name, $attrs) {    global $depth, $curpath, $config, $havedata, $listtags;    array_push($curpath, strtolower($name));    $ptr =& $config;    foreach ($curpath as $path) {        $ptr =& $ptr[$path];    }    /* is it an element that belongs to a list? */    if (in_array(strtolower($name), $listtags)) {            /* is there an array already? */        if (!is_array($ptr)) {            /* make an array */            $ptr = array();        }        array_push($curpath, count($ptr));    } else if (isset($ptr)) {        /* multiple entries not allowed for this element, bail out         * 不允许元素多次出境，否则溢出*/        //die(sprintf("XML error: %s at line %d cannot occur more than once \n",        die(sprintf("XML error: %s 在第 %d 行， 超过一次就不再出现\n",                $name,                xml_get_current_line_number($parser)));    }    $depth++;    $havedata = $depth;}function endElement($parser, $name) {    global $depth, $curpath, $config, $havedata, $listtags;    if ($havedata == $depth) {        $ptr =& $config;        foreach ($curpath as $path) {            $ptr =& $ptr[$path];        }        $ptr = "";    }    array_pop($curpath);    if (in_array(strtolower($name), $listtags))        array_pop($curpath);    $depth--;}function cData($parser, $data) {    global $depth, $curpath, $config, $havedata;    $data = trim($data, "\t\n\r");    if ($data != "") {        $ptr =& $config;        foreach ($curpath as $path) {            $ptr =& $ptr[$path];        }        if (is_string($ptr)) {            $ptr .= $data;        } else {            if (trim($data, " ") != "") {                $ptr = $data;                $havedata++;            }        }    }}$inx = iconv('gbk', 'utf-8', $xml);//由于我是在gbk环境中工作，所以要转一下码$mail_list = parse_xml_config($inx, "mailindex");$receives = $mail_list['datas']['data'];$sumCount = count($receives); //当前邮箱中的邮件总数echo "count-->>$sumCount<br/>";print_r($receives);

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