使用XML和PHP按条件计数项目？ [英] Count items by condition with XML and PHP?

问题描述

我想要获取此文件中只有项目的计数 sellingstatus-> sellstate EndedWithSales ONLY，也可以得到 EnededWithoutSales 的计数。

I would like to get the count of only items inside this file with sellingstatus->sellingstate of EndedWithSales ONLY, and perhaps also get the count for EnededWithoutSales.

<sellingStatus>
    <currentPrice currencyId="USD">25.0</currentPrice>
    <convertedCurrentPrice currencyId="USD">25.0</convertedCurrentPrice>
    <bidCount>1</bidCount>
    <sellingState>EndedWithSales</sellingState>
</sellingStatus>

我如何在php中传递这个参数？

How would I go about passing this argument in php?

以下是XML示例的链接： http://developer.ebay.com/DevZone/finding/CallRef/Samples/findCompletedItems_basic_out_xml.txt 。

Here is a link to the sample of XML: http://developer.ebay.com/DevZone/finding/CallRef/Samples/findCompletedItems_basic_out_xml.txt.

可以

推荐答案

首先，您需要访问url thu file_get_contents ，请考虑此示例：

First off, you need to access the url thu file_get_contents, Consider this example:

$url = 'http://developer.ebay.com/DevZone/finding/CallRef/Samples/findCompletedItems_basic_out_xml.txt';

// access the url and get that file
$contents = file_get_contents($url);

// convert it to an xml object
$contents = simplexml_load_string($contents);

$count = 0; // initialize counter

// loop and search for that
foreach($contents->searchResult->item as $key => $value) {

    if(isset($value->sellingStatus->sellingState) && $value->sellingStatus->sellingState == 'EndedWithSales') {
        // if that key exists and is contains EndedWithSales, increment it
        $count++;
    }
}

// at the end of the loop echo it or whatever you wanted to do
echo "<script>alert('You have $count ocurrances of EndedWithSales in this XML');</script>";

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