使用数学运算将XML转换为PHP然后转换为CSV

时间:2016-12-08 16:32:42

标签: php xml csv math xml-parsing

我正在处理此代码

<?php 
    $xml='<TOURS>
            <TOUR>
                <Title><![CDATA[Anzac &amp; Egypt Combo Tour]]></Title>
                <Code>AE-19</Code>
                <Duration>18</Duration>
                <Start>Istanbul</Start>
                <End>Cairo</End>
                <Inclusions>
                    <![CDATA[<div style="margin: 1px 0px; padding: 1px 0px; border: 0px; outline: 0px; font-size: 14px; vertical-align: baseline; text-align: justify; line-height: 19px; color: rgb(6, 119, 179);">The tour price&nbsp; cover the following services: <b style="margin: 0px; padding: 0px; border: 0px; outline: 0px; vertical-align: baseline; background-color: transparent;">Accommodation</b>; 5, 4&nbsp;and&nbsp;3 star hotels&nbsp;&nbsp;</div>]]>
                </Inclusions>
                <DEP DepartureCode="AN-17" Starts="04/19/2015" GBP="1458" EUR="1724" USD="2350" DISCOUNT="15%" />
                <DEP DepartureCode="AN-18" Starts="04/22/2015" GBP="1558" EUR="1784" USD="2550" DISCOUNT="20%" />
                <DEP DepartureCode="AN-19" Starts="04/25/2015" GBP="1558" EUR="1784" USD="2550" />
            </TOUR>
            <TOUR>
                <Title><![CDATA[Anzac &amp; Egypt Combo Tour]]></Title>
                <Code>AE-19</Code>
                <Duration>18</Duration>
                <Start>Istanbul</Start>
                <End>Cairo</End>
                <Inclusions>
                    <![CDATA[<div style="margin: 1px 0px; padding: 1px 0px; border: 0px; outline: 0px; font-size: 14px; vertical-align: baseline; text-align: justify; line-height: 19px; color: rgb(6, 119, 179);">The tour price&nbsp; cover the following services: <b style="margin: 0px; padding: 0px; border: 0px; outline: 0px; vertical-align: baseline; background-color: transparent;">Accommodation</b>; 5, 4&nbsp;and&nbsp;3 star hotels&nbsp;&nbsp;</div>]]>
                </Inclusions>
                <DEP DepartureCode="AN-17" Starts="04/19/2015" GBP="1458" EUR="1724" USD="2350" DISCOUNT="15%" />
                <DEP DepartureCode="AN-18" Starts="04/22/2015" GBP="1558" EUR="1784" USD="2550" DISCOUNT="20%" />
                <DEP DepartureCode="AN-19" Starts="04/25/2015" GBP="1558" EUR="1784" USD="2550" />
            </TOUR>
        </TOURS>';



    $tour=simplexml_load_string($xml) or die("Error: Cannot create object");

    echo "<h2>".$tour->getName()."</h2><br />";
        foreach($tour->children() as $book)
        {
            echo "Title : ".$book->Title." <br />";
            echo "Code : ".$book->Code." <br />";
            echo "Duration : ".$book->Duration." <br />";
            echo "Inclusions : ".$book->Inclusions." <br />";
            echo "MinPrice : ".$book->DEP[0]->." <br />";
            echo "<hr/>";
        }
    ?>

我能够解析XML的所有实体但是我不知道如何解析以下的xml代码

<DEP DepartureCode="AN-17" Starts="04/19/2015" GBP="1458" EUR="1724" USD="2350" DISCOUNT="15%" />
            <DEP DepartureCode="AN-18" Starts="04/22/2015" GBP="1558" EUR="1784" USD="2550" DISCOUNT="20%" />
            <DEP DepartureCode="AN-19" Starts="04/25/2015" GBP="1558" EUR="1784" USD="2550" />

我的输出应该是所有这三个中的平均值

EUR 1724 - 15% = 1465
EUR 1784 - 20% = 1427
EUR 1784 - 0   = 1784

然后总= 1465 + 1427 + 1784 = 4676&lt; - 这是我想解析xml后要显示的内容。

所以整个代码的OUTPUT应该是

TOURS


Title : Anzac & Egypt Combo Tour 
Code : AE-19 
Duration : 18 
Inclusions :
The tour price  cover the following services: Accommodation; 5, 4 and 3 star hotels  
Min Price : 4676


Title : Anzac & Egypt Combo Tour 
Code : AE-19 
Duration : 18 
Inclusions :
The tour price  cover the following services: Accommodation; 5, 4 and 3 star hotels 
Min Price : 4676

我现在上网后感到很累,我希望你们帮助我。我非常感谢您的时间和帮助。

谢谢。

1 个答案:

答案 0 :(得分:1)

$tour = simplexml_load_string($xml) or die("Error: Cannot create object");

// In real world you will likely need to open a file with fopen, e.g.:
// $fh = fopen('file.csv', 'w');
// Don't forget to close it  afterwards with fclose($fh);
$fh = STDOUT;
$delim = ':';

foreach ($tour->children() as $book) {
  $min_price = 0;
  //foreach ($book->xpath('DEP') as $d) {
  foreach ($book->DEP as $d) {
    $discount = (int)(string)$d['DISCOUNT'];
    $eur      = (int)(string)$d['EUR'];
    $min_price += $eur * (1 - $discount / 100);
  }

  fputcsv($fh, ['Title', $book->Title], $delim);
  fputcsv($fh, ['Code', $book->Code], $delim);
  fputcsv($fh, ['Duration', $book->Duration], $delim);
  fputcsv($fh, ['Inclusions', trim(strip_tags($book->Inclusions))], $delim);
  fputcsv($fh, ['MinPrice', (int)$min_price], $delim);
}

输出

Title:"Anzac &amp; Egypt Combo Tour"
Code:AE-19
Duration:18
Inclusions:"The tour price&nbsp; cover the following services: Accommodation; 5, 4&nbsp;and&nbsp;3 star hotels&nbsp;&nbsp;"
MinPrice:4676
Title:"Anzac &amp; Egypt Combo Tour"
Code:AE-19
Duration:18
Inclusions:"The tour price&nbsp; cover the following services: Accommodation; 5, 4&nbsp;and&nbsp;3 star hotels&nbsp;&nbsp;"
MinPrice:4676

迭代$book->DEP,或在SimpleXmlElement::xpath()方法的帮助下使用相对XPath表达式'DEP'。在这种特殊情况下,您可以简单地迭代DEP属性。我已经展示了XPath版本的完整性。当您需要根据复杂的逻辑选择节点时,XPath非常有用。

属性作为数组项进行访问。使用类型转换获得的数值:

  • SimpleXmlElement::__toString方法允许获取元素的字符串表示形式;
  • (int)将前导数字转换为整数类型,例如(int)"20%" === 20
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