PHP SimpleXML 解析问题，获取重复元素
PHP SimpleXML Parsing Issue, get duplicate elements
正在尝试使用 SimpleXML 函数进行解析，它工作正常。但我一直坚持如何从 XML
中提取 'colour' & 'length 数据
下面是代码中引用的 'ebay-response.xml' 文件的片段：
完整的 xml 文件可以从 ebay-response.xml
下载
<?xml version="1.0" encoding="UTF-8"?>
<GetItemResponse xmlns="urn:ebay:apis:eBLBaseComponents">
<Timestamp>2015-08-03T11:45:56.061Z</Timestamp>
<Ack>Success</Ack>
<Version>927</Version>
<Build>E927_INTL_API_17590342_R1</Build>
<Item>
<Quantity>25000</Quantity>
<ShippingDetails />
<Title>CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft</Title>
<Variations>
<Variation>
<SKU>1176:3448</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>4" (10cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
<SKU>1176:3449</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>5" (12cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
<SKU>1176:3450</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>6" (15cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
<SKU>1176:3451</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>7" (18cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
我当前的 PHP 脚本是：
if(!$resp = simplexml_load_file("ebay-response.xml"))
{
echo "Unable to load XML Stream from eBAY API, possible no response from eBay?<br />\n";
return;
}
if ($resp->Ack != "Success") {
echo 'eBay Response Status was: ' . $resp->Ack . " Unable to parse the XML <br />\n";
return;
}
echo 'eBay Response Status: ' . $resp->Ack . "<br />\n";
echo 'ebay Response Timestamp: ' . $resp->Timestamp . "<br />\n";
echo 'ebay API Version: ' . $resp->Version . "<br />\n";
echo 'ebay API Build: ' . $resp->Build . "<br />\n";
echo 'eBay Item Title: ' . $resp->Item->Title . "<br />\n";
echo 'Total Items (all variations): ' . $resp->Item->Quantity . "<br />\n<br />\n";
foreach( $resp->Item->Variations->children() as $SkuAndQuantity )
{
echo 'Title: ' . $resp->Item->Title . ' SKU: ' . $SkuAndQuantity->SKU .
' Qty: ' . $SkuAndQuantity->Quantity . "<br />\n";
foreach( $resp->Item->Variations->Variation->VariationSpecifics->NameValueList->children() as $options )
{
echo $options .'<br />';
}
}
echo "<br />\n";
当我 运行 我的代码如下所示时，我得到的结果如下所示，正如您所看到的，我似乎只拉回了白色（没有长度），即使我的颜色似乎也只有从第一个 'Variation' 元素
获取颜色
eBay Response Status: Success
ebay Response Timestamp: 2015-08-03T11:45:56.061Z
ebay API Version: 927
ebay API Build: E927_INTL_API_17590342_R1
eBay Item Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft
Total Items (all variations): 25000
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3448 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3449 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3450 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3451 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3452 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3453 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3454 Qty: 100
Colour
这部分代码不会遍历 Variation 或 NameValueList 元素：
foreach($resp->Item->Variations->Variation->VariationSpecifics->NameValueList->children() as $options)
{
echo $options .'<br />';
}
它将始终使用第一个 Variation 元素和第一个 NameValueList 元素。这会导致您的问题。
您需要将代码更改为：
foreach($resp->Item->Variations->children() as $Variation)
{
echo 'Title: ' . $resp->Item->Title . ' SKU: ' . $Variation->SKU .' Qty: ' . $Variation->Quantity .'<br />';
foreach($Variation->VariationSpecifics->children() as $NameValueList)
foreach($NameValueList->children() as $option)
echo $option .'<br />';
}
XML 允许以分层方式表示数据，也可以表示为某种树。
在 ebay 答案中你有一个 <Item> 元素。
那个 <Item> 元素可以有一个 <Variations> 元素。
那个 <Variations> 元素可以有零个或多个 <Variation> 元素。
<Variantion> 元素又可以在零个或多个 <VariationSpecifics> <NameValueList> 元素中包含 <Name>/<Value> 对。
<GetItemResponse>
<Item> (1)
<Variations> (1)
<Variation> (1..n)
<VariationSpecifics> (1)
<NameValueList> (1..n)
<Name> (1)
<Value> (1)
对于可以有多个条目 (1..n) 的元素，您需要进行迭代。
以下是纯文本输出的此类迭代示例（因为它更易于演示）：
$xml = simplexml_load_file('ebay-response.xml');
$item = $xml->Item; // one <Item>
$variations = $item->Variations->Variation; // one or more <Variation>
echo $item->Title, "\n";
echo str_repeat('=', strlen($item->Title)), "\n";
foreach ($variations as $variation) {
echo " * ";
$nameValues = new CachingIterator(new IteratorIterator($variation->VariationSpecifics->NameValueList));
foreach ($nameValues as $pair) {
echo $pair->Name, ': ', $pair->Value, $nameValues->hasNext() ? '; ' : ' ';
}
echo '(SKU: ', $variation->SKU, ')', "\n";
}
这表明您需要将多个 foreach 相互堆叠。这是两个 - 因为在上面的模式中有两个标记为 (1..n) 的元素。
内部 foreach 有点特殊，因为我将 <NameValueList> 元素包装在 CachingIterator 中。它添加了一个很好的方法，您可以询问 foreach 循环中是否会有下一个元素 ($nameValues->hasNext())，示例中使用该元素用分号 ("[=27] 分隔 name/value 对=]").
示例（缩短）输出为：
CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft
=============================================================================
* Colour: White; Length: 4" (10cm) (SKU: 1176:3448)
* Colour: White; Length: 5" (12cm) (SKU: 1176:3449)
* Colour: White; Length: 6" (15cm) (SKU: 1176:3450)
...
* Colour: Dark Grey; Length: 6" (15cm) (SKU: 1213:3450)
* Colour: Dark Grey; Length: 7" (18cm) (SKU: 1213:3451)
* Colour: Dark Grey; Length: 8" (20cm) (SKU: 1213:3452)
现在这并不总是您想要的显示方式。例如，您可能想要列出所有颜色，并为每种颜色显示可用尺寸。这将变得过于复杂，因为你在那里有 SimpleXMLElements。 foreach 的另一种选择是 运行 一个或多个 xpath 查询，您可以对其结果再次进行 foreach。
这是另一个按颜色列出所有长度的示例：
$item->registerXPathNamespace('xs', 'urn:ebay:apis:eBLBaseComponents');
$colors = $item->xpath('xs:Variations//xs:Value[preceding-sibling::xs:Name = "Colour"]');
$colors = array_unique(array_map('trim', $colors));
foreach($colors as $color) {
echo " * Color ", $color, ": ";
$colorLengths = $item->xpath(sprintf(
' xs:Variations
//xs:Value [. = %s and preceding-sibling::xs:Name = "Colour"]
/../..//xs:Value [preceding-sibling::xs:Name = "Length"]', xpath_string($color)));
$count = count($colorLengths);
echo "$count Lengths: ";
foreach ($colorLengths as $i => $length) {
$hasNext = $count - $i - 1;
$length->registerXPathNamespace('xs', 'urn:ebay:apis:eBLBaseComponents');
echo $length, ' (SKU: ', $length->xpath('../../../xs:SKU')[0], ')', $hasNext ? '; ' : '';
}
echo "\n";
}
示例输出：
CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft
=============================================================================
* Color White: 7 Lengths: 4" (10cm) (SKU: 1176:3448); 5" (12cm) (SKU: 1176:3449); 6" (15cm) (SKU: 1176:3450); 7" (18cm) (SKU: 1176:3451); 8" (20cm) (SKU: 1176:3452); 10" (25cm) (SKU: 1176:3453); 12" (30cm) (SKU: 1176:3454)
* Color Ivory: 7 Lengths: 4" (10cm) (SKU: 1177:3448); 5" (12cm) (SKU: 1177:3449); 6" (15cm) (SKU: 1177:3450); 7" (18cm) (SKU: 1177:3451); 8" (20cm) (SKU: 1177:3452); 10" (25cm) (SKU: 1177:3453); 12" (30cm) (SKU: 1177:3454)
* Color Cream: 7 Lengths: 4" (10cm) (SKU: 1178:3448); 5" (12cm) (SKU: 1178:3449); 6" (15cm) (SKU: 1178:3450); 7" (18cm) (SKU: 1178:3451); 8" (20cm) (SKU: 1178:3452); 10" (25cm) (SKU: 1178:3453); 12" (30cm) (SKU: 1178:3454)
* Color Lemon: 7 Lengths: 4" (10cm) (SKU: 1179:3448); 5" (12cm) (SKU: 1179:3449); 6" (15cm) (SKU: 1179:3450); 7" (18cm) (SKU: 1179:3451); 8" (20cm) (SKU: 1179:3452); 10" (25cm) (SKU: 1179:3453); 12" (30cm) (SKU: 1179:3454)
* Color Peach: 7 Lengths: 4" (10cm) (SKU: 1180:3448); 5" (12cm) (SKU: 1180:3449); 6" (15cm) (SKU: 1180:3450); 7" (18cm) (SKU: 1180:3451); 8" (20cm) (SKU: 1180:3452); 10" (25cm) (SKU: 1180:3453); 12" (30cm) (SKU: 1180:3454)
* Color Pale Green: 7 Lengths: 4" (10cm) (SKU: 1181:3448); 5" (12cm) (SKU: 1181:3449); 6" (15cm) (SKU: 1181:3450); 7" (18cm) (SKU: 1181:3451); 8" (20cm) (SKU: 1181:3452); 10" (25cm) (SKU: 1181:3453); 12" (30cm) (SKU: 1181:3454)
* Color Aqua: 7 Lengths: 4" (10cm) (SKU: 1182:3448); 5" (12cm) (SKU: 1182:3449); 6" (15cm) (SKU: 1182:3450); 7" (18cm) (SKU: 1182:3451); 8" (20cm) (SKU: 1182:3452); 10" (25cm) (SKU: 1182:3453); 12" (30cm) (SKU: 1182:3454)
* Color Pale Blue: 7 Lengths: 4" (10cm) (SKU: 1183:3448); 5" (12cm) (SKU: 1183:3449); 6" (15cm) (SKU: 1183:3450); 7" (18cm) (SKU: 1183:3451); 8" (20cm) (SKU: 1183:3452); 10" (25cm) (SKU: 1183:3453); 12" (30cm) (SKU: 1183:3454)
* Color Mid Blue: 7 Lengths: 4" (10cm) (SKU: 1184:3448); 5" (12cm) (SKU: 1184:3449); 6" (15cm) (SKU: 1184:3450); 7" (18cm) (SKU: 1184:3451); 8" (20cm) (SKU: 1184:3452); 10" (25cm) (SKU: 1184:3453); 12" (30cm) (SKU: 1184:3454)
* Color Lilac: 7 Lengths: 4" (10cm) (SKU: 1185:3448); 5" (12cm) (SKU: 1185:3449); 6" (15cm) (SKU: 1185:3450); 7" (18cm) (SKU: 1185:3451); 8" (20cm) (SKU: 1185:3452); 10" (25cm) (SKU: 1185:3453); 12" (30cm) (SKU: 1185:3454)
* Color Heather: 7 Lengths: 4" (10cm) (SKU: 1186:3448); 5" (12cm) (SKU: 1186:3449); 6" (15cm) (SKU: 1186:3450); 7" (18cm) (SKU: 1186:3451); 8" (20cm) (SKU: 1186:3452); 10" (25cm) (SKU: 1186:3453); 12" (30cm) (SKU: 1186:3454)
* Color Pale Pink: 7 Lengths: 4" (10cm) (SKU: 1187:3448); 5" (12cm) (SKU: 1187:3449); 6" (15cm) (SKU: 1187:3450); 7" (18cm) (SKU: 1187:3451); 8" (20cm) (SKU: 1187:3452); 10" (25cm) (SKU: 1187:3453); 12" (30cm) (SKU: 1187:3454)
* Color Vintage Pink: 7 Lengths: 4" (10cm) (SKU: 1189:3448); 5" (12cm) (SKU: 1189:3449); 6" (15cm) (SKU: 1189:3450); 7" (18cm) (SKU: 1189:3451); 8" (20cm) (SKU: 1189:3452); 10" (25cm) (SKU: 1189:3453); 12" (30cm) (SKU: 1189:3454)
* Color Ruby: 7 Lengths: 4" (10cm) (SKU: 1190:3448); 5" (12cm) (SKU: 1190:3449); 6" (15cm) (SKU: 1190:3450); 7" (18cm) (SKU: 1190:3451); 8" (20cm) (SKU: 1190:3452); 10" (25cm) (SKU: 1190:3453); 12" (30cm) (SKU: 1190:3454)
* Color Cerise: 7 Lengths: 4" (10cm) (SKU: 1191:3448); 5" (12cm) (SKU: 1191:3449); 6" (15cm) (SKU: 1191:3450); 7" (18cm) (SKU: 1191:3451); 8" (20cm) (SKU: 1191:3452); 10" (25cm) (SKU: 1191:3453); 12" (30cm) (SKU: 1191:3454)
* Color Bright Purple: 7 Lengths: 4" (10cm) (SKU: 1193:3448); 5" (12cm) (SKU: 1193:3449); 6" (15cm) (SKU: 1193:3450); 7" (18cm) (SKU: 1193:3451); 8" (20cm) (SKU: 1193:3452); 10" (25cm) (SKU: 1193:3453); 12" (30cm) (SKU: 1193:3454)
* Color Deep Purple: 7 Lengths: 4" (10cm) (SKU: 1194:3448); 5" (12cm) (SKU: 1194:3449); 6" (15cm) (SKU: 1194:3450); 7" (18cm) (SKU: 1194:3451); 8" (20cm) (SKU: 1194:3452); 10" (25cm) (SKU: 1194:3453); 12" (30cm) (SKU: 1194:3454)
* Color Magenta: 7 Lengths: 4" (10cm) (SKU: 1192:3448); 5" (12cm) (SKU: 1192:3449); 6" (15cm) (SKU: 1192:3450); 7" (18cm) (SKU: 1192:3451); 8" (20cm) (SKU: 1192:3452); 10" (25cm) (SKU: 1192:3453); 12" (30cm) (SKU: 1192:3454)
* Color Bright Red: 7 Lengths: 4" (10cm) (SKU: 1195:3448); 5" (12cm) (SKU: 1195:3449); 6" (15cm) (SKU: 1195:3450); 7" (18cm) (SKU: 1195:3451); 8" (20cm) (SKU: 1195:3452); 10" (25cm) (SKU: 1195:3453); 12" (30cm) (SKU: 1195:3454)
* Color Cherry Red: 7 Lengths: 4" (10cm) (SKU: 1196:3448); 5" (12cm) (SKU: 1196:3449); 6" (15cm) (SKU: 1196:3450); 7" (18cm) (SKU: 1196:3451); 8" (20cm) (SKU: 1196:3452); 10" (25cm) (SKU: 1196:3453); 12" (30cm) (SKU: 1196:3454)
* Color Orange: 7 Lengths: 4" (10cm) (SKU: 1197:3448); 5" (12cm) (SKU: 1197:3449); 6" (15cm) (SKU: 1197:3450); 7" (18cm) (SKU: 1197:3451); 8" (20cm) (SKU: 1197:3452); 10" (25cm) (SKU: 1197:3453); 12" (30cm) (SKU: 1197:3454)
* Color Gold: 7 Lengths: 4" (10cm) (SKU: 1198:3448); 5" (12cm) (SKU: 1198:3449); 6" (15cm) (SKU: 1198:3450); 7" (18cm) (SKU: 1198:3451); 8" (20cm) (SKU: 1198:3452); 10" (25cm) (SKU: 1198:3453); 12" (30cm) (SKU: 1198:3454)
* Color Yellow: 7 Lengths: 4" (10cm) (SKU: 1199:3448); 5" (12cm) (SKU: 1199:3449); 6" (15cm) (SKU: 1199:3450); 7" (18cm) (SKU: 1199:3451); 8" (20cm) (SKU: 1199:3452); 10" (25cm) (SKU: 1199:3453); 12" (30cm) (SKU: 1199:3455)
* Color Bright Lime: 7 Lengths: 4" (10cm) (SKU: 1200:3448); 5" (12cm) (SKU: 1200:3449); 6" (15cm) (SKU: 1200:3450); 7" (18cm) (SKU: 1200:3451); 8" (20cm) (SKU: 1200:3452); 10" (25cm) (SKU: 1200:3453); 12" (30cm) (SKU: 1200:3454)
* Color Emerald Green: 7 Lengths: 4" (10cm) (SKU: 1202:3448); 5" (12cm) (SKU: 1202:3449); 6" (15cm) (SKU: 1202:3450); 7" (18cm) (SKU: 1202:3451); 8" (20cm) (SKU: 1202:3452); 10" (25cm) (SKU: 1202:3453); 12" (30cm) (SKU: 1202:3454)
* Color Forest Green: 7 Lengths: 4" (10cm) (SKU: 1203:3448); 5" (12cm) (SKU: 1203:3449); 6" (15cm) (SKU: 1203:3450); 7" (18cm) (SKU: 1203:3451); 8" (20cm) (SKU: 1203:3452); 10" (25cm) (SKU: 1203:3453); 12" (30cm) (SKU: 1203:3454)
* Color Olive Green: 7 Lengths: 4" (10cm) (SKU: 1204:3448); 5" (12cm) (SKU: 1204:3449); 6" (15cm) (SKU: 1204:3450); 7" (18cm) (SKU: 1204:3451); 8" (20cm) (SKU: 1204:3452); 10" (25cm) (SKU: 1204:3453); 12" (30cm) (SKU: 1204:3454)
* Color Sage Green: 7 Lengths: 4" (10cm) (SKU: 1201:3448); 5" (12cm) (SKU: 1201:3449); 6" (15cm) (SKU: 1201:3450); 7" (18cm) (SKU: 1201:3451); 8" (20cm) (SKU: 1201:3452); 10" (25cm) (SKU: 1201:3453); 12" (30cm) (SKU: 1201:3454)
* Color Turquoise: 7 Lengths: 4" (10cm) (SKU: 1205:3448); 5" (12cm) (SKU: 1205:3449); 6" (15cm) (SKU: 1205:3450); 7" (18cm) (SKU: 1205:3451); 8" (20cm) (SKU: 1205:3452); 10" (25cm) (SKU: 1205:3453); 12" (30cm) (SKU: 1205:3454)
* Color Denim Blue: 7 Lengths: 4" (10cm) (SKU: 1207:3448); 5" (12cm) (SKU: 1207:3449); 6" (15cm) (SKU: 1207:3450); 7" (18cm) (SKU: 1207:3451); 8" (20cm) (SKU: 1207:3452); 10" (25cm) (SKU: 1207:3453); 12" (30cm) (SKU: 1207:3454)
* Color Royal Blue: 7 Lengths: 4" (10cm) (SKU: 1206:3448); 5" (12cm) (SKU: 1206:3449); 6" (15cm) (SKU: 1206:3450); 7" (18cm) (SKU: 1206:3451); 8" (20cm) (SKU: 1206:3452); 10" (25cm) (SKU: 1206:3453); 12" (30cm) (SKU: 1206:3454)
* Color Navy: 7 Lengths: 4" (10cm) (SKU: 1208:3448); 5" (12cm) (SKU: 1208:3449); 6" (15cm) (SKU: 1208:3450); 7" (18cm) (SKU: 1208:3451); 8" (20cm) (SKU: 1208:3452); 10" (25cm) (SKU: 1208:3453); 12" (30cm) (SKU: 1208:3454)
* Color Rust: 7 Lengths: 4" (10cm) (SKU: 1210:3448); 5" (12cm) (SKU: 1210:3449); 6" (15cm) (SKU: 1210:3450); 7" (18cm) (SKU: 1210:3451); 8" (20cm) (SKU: 1210:3452); 10" (25cm) (SKU: 1210:3453); 12" (30cm) (SKU: 1210:3454)
* Color Dark Brown: 7 Lengths: 4" (10cm) (SKU: 1211:3448); 5" (12cm) (SKU: 1211:3449); 6" (15cm) (SKU: 1211:3450); 7" (18cm) (SKU: 1211:3451); 8" (20cm) (SKU: 1211:3452); 10" (25cm) (SKU: 1211:3453); 12" (30cm) (SKU: 1211:3454)
* Color Light Grey: 7 Lengths: 4" (10cm) (SKU: 1212:3448); 5" (12cm) (SKU: 1212:3449); 6" (15cm) (SKU: 1212:3450); 7" (18cm) (SKU: 1212:3451); 8" (20cm) (SKU: 1212:3452); 10" (25cm) (SKU: 1212:3453); 12" (30cm) (SKU: 1212:3454)
* Color Dark Grey: 5 Lengths: 4" (10cm) (SKU: 1213:3448); 5" (12cm) (SKU: 1213:3449); 6" (15cm) (SKU: 1213:3450); 7" (18cm) (SKU: 1213:3451); 8" (20cm) (SKU: 1213:3452)
正在尝试使用 SimpleXML 函数进行解析，它工作正常。但我一直坚持如何从 XML
中提取 'colour' & 'length 数据下面是代码中引用的 'ebay-response.xml' 文件的片段：
完整的 xml 文件可以从 ebay-response.xml
下载<?xml version="1.0" encoding="UTF-8"?>
<GetItemResponse xmlns="urn:ebay:apis:eBLBaseComponents">
<Timestamp>2015-08-03T11:45:56.061Z</Timestamp>
<Ack>Success</Ack>
<Version>927</Version>
<Build>E927_INTL_API_17590342_R1</Build>
<Item>
<Quantity>25000</Quantity>
<ShippingDetails />
<Title>CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft</Title>
<Variations>
<Variation>
<SKU>1176:3448</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>4" (10cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
<SKU>1176:3449</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>5" (12cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
<SKU>1176:3450</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>6" (15cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
<SKU>1176:3451</SKU>
<Quantity>100</Quantity>
<VariationSpecifics>
<NameValueList>
<Name>Colour</Name>
<Value>White</Value>
</NameValueList>
<NameValueList>
<Name>Length</Name>
<Value>7" (18cm)</Value>
</NameValueList>
</VariationSpecifics>
</Variation>
<Variation>
我当前的 PHP 脚本是：
if(!$resp = simplexml_load_file("ebay-response.xml"))
{
echo "Unable to load XML Stream from eBAY API, possible no response from eBay?<br />\n";
return;
}
if ($resp->Ack != "Success") {
echo 'eBay Response Status was: ' . $resp->Ack . " Unable to parse the XML <br />\n";
return;
}
echo 'eBay Response Status: ' . $resp->Ack . "<br />\n";
echo 'ebay Response Timestamp: ' . $resp->Timestamp . "<br />\n";
echo 'ebay API Version: ' . $resp->Version . "<br />\n";
echo 'ebay API Build: ' . $resp->Build . "<br />\n";
echo 'eBay Item Title: ' . $resp->Item->Title . "<br />\n";
echo 'Total Items (all variations): ' . $resp->Item->Quantity . "<br />\n<br />\n";
foreach( $resp->Item->Variations->children() as $SkuAndQuantity )
{
echo 'Title: ' . $resp->Item->Title . ' SKU: ' . $SkuAndQuantity->SKU .
' Qty: ' . $SkuAndQuantity->Quantity . "<br />\n";
foreach( $resp->Item->Variations->Variation->VariationSpecifics->NameValueList->children() as $options )
{
echo $options .'<br />';
}
}
echo "<br />\n";
当我 运行 我的代码如下所示时，我得到的结果如下所示，正如您所看到的，我似乎只拉回了白色（没有长度），即使我的颜色似乎也只有从第一个 'Variation' 元素
获取颜色eBay Response Status: Success
ebay Response Timestamp: 2015-08-03T11:45:56.061Z
ebay API Version: 927
ebay API Build: E927_INTL_API_17590342_R1
eBay Item Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft
Total Items (all variations): 25000
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3448 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3449 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3450 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3451 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3452 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3453 Qty: 100
Colour
White
Title: CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft SKU: 1176:3454 Qty: 100
Colour
这部分代码不会遍历 Variation 或 NameValueList 元素：
foreach($resp->Item->Variations->Variation->VariationSpecifics->NameValueList->children() as $options)
{
echo $options .'<br />';
}
它将始终使用第一个 Variation 元素和第一个 NameValueList 元素。这会导致您的问题。
您需要将代码更改为：
foreach($resp->Item->Variations->children() as $Variation)
{
echo 'Title: ' . $resp->Item->Title . ' SKU: ' . $Variation->SKU .' Qty: ' . $Variation->Quantity .'<br />';
foreach($Variation->VariationSpecifics->children() as $NameValueList)
foreach($NameValueList->children() as $option)
echo $option .'<br />';
}
XML 允许以分层方式表示数据，也可以表示为某种树。
在 ebay 答案中你有一个 <Item> 元素。
那个 <Item> 元素可以有一个 <Variations> 元素。
那个 <Variations> 元素可以有零个或多个 <Variation> 元素。
<Variantion> 元素又可以在零个或多个 <VariationSpecifics> <NameValueList> 元素中包含 <Name>/<Value> 对。
<GetItemResponse>
<Item> (1)
<Variations> (1)
<Variation> (1..n)
<VariationSpecifics> (1)
<NameValueList> (1..n)
<Name> (1)
<Value> (1)
对于可以有多个条目 (1..n) 的元素，您需要进行迭代。
以下是纯文本输出的此类迭代示例（因为它更易于演示）：
$xml = simplexml_load_file('ebay-response.xml');
$item = $xml->Item; // one <Item>
$variations = $item->Variations->Variation; // one or more <Variation>
echo $item->Title, "\n";
echo str_repeat('=', strlen($item->Title)), "\n";
foreach ($variations as $variation) {
echo " * ";
$nameValues = new CachingIterator(new IteratorIterator($variation->VariationSpecifics->NameValueList));
foreach ($nameValues as $pair) {
echo $pair->Name, ': ', $pair->Value, $nameValues->hasNext() ? '; ' : ' ';
}
echo '(SKU: ', $variation->SKU, ')', "\n";
}
这表明您需要将多个 foreach 相互堆叠。这是两个 - 因为在上面的模式中有两个标记为 (1..n) 的元素。
内部 foreach 有点特殊，因为我将 <NameValueList> 元素包装在 CachingIterator 中。它添加了一个很好的方法，您可以询问 foreach 循环中是否会有下一个元素 ($nameValues->hasNext())，示例中使用该元素用分号 ("[=27] 分隔 name/value 对=]").
示例（缩短）输出为：
CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft
=============================================================================
* Colour: White; Length: 4" (10cm) (SKU: 1176:3448)
* Colour: White; Length: 5" (12cm) (SKU: 1176:3449)
* Colour: White; Length: 6" (15cm) (SKU: 1176:3450)
...
* Colour: Dark Grey; Length: 6" (15cm) (SKU: 1213:3450)
* Colour: Dark Grey; Length: 7" (18cm) (SKU: 1213:3451)
* Colour: Dark Grey; Length: 8" (20cm) (SKU: 1213:3452)
现在这并不总是您想要的显示方式。例如，您可能想要列出所有颜色，并为每种颜色显示可用尺寸。这将变得过于复杂，因为你在那里有 SimpleXMLElements。 foreach 的另一种选择是 运行 一个或多个 xpath 查询，您可以对其结果再次进行 foreach。
这是另一个按颜色列出所有长度的示例：
$item->registerXPathNamespace('xs', 'urn:ebay:apis:eBLBaseComponents');
$colors = $item->xpath('xs:Variations//xs:Value[preceding-sibling::xs:Name = "Colour"]');
$colors = array_unique(array_map('trim', $colors));
foreach($colors as $color) {
echo " * Color ", $color, ": ";
$colorLengths = $item->xpath(sprintf(
' xs:Variations
//xs:Value [. = %s and preceding-sibling::xs:Name = "Colour"]
/../..//xs:Value [preceding-sibling::xs:Name = "Length"]', xpath_string($color)));
$count = count($colorLengths);
echo "$count Lengths: ";
foreach ($colorLengths as $i => $length) {
$hasNext = $count - $i - 1;
$length->registerXPathNamespace('xs', 'urn:ebay:apis:eBLBaseComponents');
echo $length, ' (SKU: ', $length->xpath('../../../xs:SKU')[0], ')', $hasNext ? '; ' : '';
}
echo "\n";
}
示例输出：
CLOSED END ZIPS 40 Colours 4 6 8 10 12in (10-30cm) for Skirt Trousers Craft
=============================================================================
* Color White: 7 Lengths: 4" (10cm) (SKU: 1176:3448); 5" (12cm) (SKU: 1176:3449); 6" (15cm) (SKU: 1176:3450); 7" (18cm) (SKU: 1176:3451); 8" (20cm) (SKU: 1176:3452); 10" (25cm) (SKU: 1176:3453); 12" (30cm) (SKU: 1176:3454)
* Color Ivory: 7 Lengths: 4" (10cm) (SKU: 1177:3448); 5" (12cm) (SKU: 1177:3449); 6" (15cm) (SKU: 1177:3450); 7" (18cm) (SKU: 1177:3451); 8" (20cm) (SKU: 1177:3452); 10" (25cm) (SKU: 1177:3453); 12" (30cm) (SKU: 1177:3454)
* Color Cream: 7 Lengths: 4" (10cm) (SKU: 1178:3448); 5" (12cm) (SKU: 1178:3449); 6" (15cm) (SKU: 1178:3450); 7" (18cm) (SKU: 1178:3451); 8" (20cm) (SKU: 1178:3452); 10" (25cm) (SKU: 1178:3453); 12" (30cm) (SKU: 1178:3454)
* Color Lemon: 7 Lengths: 4" (10cm) (SKU: 1179:3448); 5" (12cm) (SKU: 1179:3449); 6" (15cm) (SKU: 1179:3450); 7" (18cm) (SKU: 1179:3451); 8" (20cm) (SKU: 1179:3452); 10" (25cm) (SKU: 1179:3453); 12" (30cm) (SKU: 1179:3454)
* Color Peach: 7 Lengths: 4" (10cm) (SKU: 1180:3448); 5" (12cm) (SKU: 1180:3449); 6" (15cm) (SKU: 1180:3450); 7" (18cm) (SKU: 1180:3451); 8" (20cm) (SKU: 1180:3452); 10" (25cm) (SKU: 1180:3453); 12" (30cm) (SKU: 1180:3454)
* Color Pale Green: 7 Lengths: 4" (10cm) (SKU: 1181:3448); 5" (12cm) (SKU: 1181:3449); 6" (15cm) (SKU: 1181:3450); 7" (18cm) (SKU: 1181:3451); 8" (20cm) (SKU: 1181:3452); 10" (25cm) (SKU: 1181:3453); 12" (30cm) (SKU: 1181:3454)
* Color Aqua: 7 Lengths: 4" (10cm) (SKU: 1182:3448); 5" (12cm) (SKU: 1182:3449); 6" (15cm) (SKU: 1182:3450); 7" (18cm) (SKU: 1182:3451); 8" (20cm) (SKU: 1182:3452); 10" (25cm) (SKU: 1182:3453); 12" (30cm) (SKU: 1182:3454)
* Color Pale Blue: 7 Lengths: 4" (10cm) (SKU: 1183:3448); 5" (12cm) (SKU: 1183:3449); 6" (15cm) (SKU: 1183:3450); 7" (18cm) (SKU: 1183:3451); 8" (20cm) (SKU: 1183:3452); 10" (25cm) (SKU: 1183:3453); 12" (30cm) (SKU: 1183:3454)
* Color Mid Blue: 7 Lengths: 4" (10cm) (SKU: 1184:3448); 5" (12cm) (SKU: 1184:3449); 6" (15cm) (SKU: 1184:3450); 7" (18cm) (SKU: 1184:3451); 8" (20cm) (SKU: 1184:3452); 10" (25cm) (SKU: 1184:3453); 12" (30cm) (SKU: 1184:3454)
* Color Lilac: 7 Lengths: 4" (10cm) (SKU: 1185:3448); 5" (12cm) (SKU: 1185:3449); 6" (15cm) (SKU: 1185:3450); 7" (18cm) (SKU: 1185:3451); 8" (20cm) (SKU: 1185:3452); 10" (25cm) (SKU: 1185:3453); 12" (30cm) (SKU: 1185:3454)
* Color Heather: 7 Lengths: 4" (10cm) (SKU: 1186:3448); 5" (12cm) (SKU: 1186:3449); 6" (15cm) (SKU: 1186:3450); 7" (18cm) (SKU: 1186:3451); 8" (20cm) (SKU: 1186:3452); 10" (25cm) (SKU: 1186:3453); 12" (30cm) (SKU: 1186:3454)
* Color Pale Pink: 7 Lengths: 4" (10cm) (SKU: 1187:3448); 5" (12cm) (SKU: 1187:3449); 6" (15cm) (SKU: 1187:3450); 7" (18cm) (SKU: 1187:3451); 8" (20cm) (SKU: 1187:3452); 10" (25cm) (SKU: 1187:3453); 12" (30cm) (SKU: 1187:3454)
* Color Vintage Pink: 7 Lengths: 4" (10cm) (SKU: 1189:3448); 5" (12cm) (SKU: 1189:3449); 6" (15cm) (SKU: 1189:3450); 7" (18cm) (SKU: 1189:3451); 8" (20cm) (SKU: 1189:3452); 10" (25cm) (SKU: 1189:3453); 12" (30cm) (SKU: 1189:3454)
* Color Ruby: 7 Lengths: 4" (10cm) (SKU: 1190:3448); 5" (12cm) (SKU: 1190:3449); 6" (15cm) (SKU: 1190:3450); 7" (18cm) (SKU: 1190:3451); 8" (20cm) (SKU: 1190:3452); 10" (25cm) (SKU: 1190:3453); 12" (30cm) (SKU: 1190:3454)
* Color Cerise: 7 Lengths: 4" (10cm) (SKU: 1191:3448); 5" (12cm) (SKU: 1191:3449); 6" (15cm) (SKU: 1191:3450); 7" (18cm) (SKU: 1191:3451); 8" (20cm) (SKU: 1191:3452); 10" (25cm) (SKU: 1191:3453); 12" (30cm) (SKU: 1191:3454)
* Color Bright Purple: 7 Lengths: 4" (10cm) (SKU: 1193:3448); 5" (12cm) (SKU: 1193:3449); 6" (15cm) (SKU: 1193:3450); 7" (18cm) (SKU: 1193:3451); 8" (20cm) (SKU: 1193:3452); 10" (25cm) (SKU: 1193:3453); 12" (30cm) (SKU: 1193:3454)
* Color Deep Purple: 7 Lengths: 4" (10cm) (SKU: 1194:3448); 5" (12cm) (SKU: 1194:3449); 6" (15cm) (SKU: 1194:3450); 7" (18cm) (SKU: 1194:3451); 8" (20cm) (SKU: 1194:3452); 10" (25cm) (SKU: 1194:3453); 12" (30cm) (SKU: 1194:3454)
* Color Magenta: 7 Lengths: 4" (10cm) (SKU: 1192:3448); 5" (12cm) (SKU: 1192:3449); 6" (15cm) (SKU: 1192:3450); 7" (18cm) (SKU: 1192:3451); 8" (20cm) (SKU: 1192:3452); 10" (25cm) (SKU: 1192:3453); 12" (30cm) (SKU: 1192:3454)
* Color Bright Red: 7 Lengths: 4" (10cm) (SKU: 1195:3448); 5" (12cm) (SKU: 1195:3449); 6" (15cm) (SKU: 1195:3450); 7" (18cm) (SKU: 1195:3451); 8" (20cm) (SKU: 1195:3452); 10" (25cm) (SKU: 1195:3453); 12" (30cm) (SKU: 1195:3454)
* Color Cherry Red: 7 Lengths: 4" (10cm) (SKU: 1196:3448); 5" (12cm) (SKU: 1196:3449); 6" (15cm) (SKU: 1196:3450); 7" (18cm) (SKU: 1196:3451); 8" (20cm) (SKU: 1196:3452); 10" (25cm) (SKU: 1196:3453); 12" (30cm) (SKU: 1196:3454)
* Color Orange: 7 Lengths: 4" (10cm) (SKU: 1197:3448); 5" (12cm) (SKU: 1197:3449); 6" (15cm) (SKU: 1197:3450); 7" (18cm) (SKU: 1197:3451); 8" (20cm) (SKU: 1197:3452); 10" (25cm) (SKU: 1197:3453); 12" (30cm) (SKU: 1197:3454)
* Color Gold: 7 Lengths: 4" (10cm) (SKU: 1198:3448); 5" (12cm) (SKU: 1198:3449); 6" (15cm) (SKU: 1198:3450); 7" (18cm) (SKU: 1198:3451); 8" (20cm) (SKU: 1198:3452); 10" (25cm) (SKU: 1198:3453); 12" (30cm) (SKU: 1198:3454)
* Color Yellow: 7 Lengths: 4" (10cm) (SKU: 1199:3448); 5" (12cm) (SKU: 1199:3449); 6" (15cm) (SKU: 1199:3450); 7" (18cm) (SKU: 1199:3451); 8" (20cm) (SKU: 1199:3452); 10" (25cm) (SKU: 1199:3453); 12" (30cm) (SKU: 1199:3455)
* Color Bright Lime: 7 Lengths: 4" (10cm) (SKU: 1200:3448); 5" (12cm) (SKU: 1200:3449); 6" (15cm) (SKU: 1200:3450); 7" (18cm) (SKU: 1200:3451); 8" (20cm) (SKU: 1200:3452); 10" (25cm) (SKU: 1200:3453); 12" (30cm) (SKU: 1200:3454)
* Color Emerald Green: 7 Lengths: 4" (10cm) (SKU: 1202:3448); 5" (12cm) (SKU: 1202:3449); 6" (15cm) (SKU: 1202:3450); 7" (18cm) (SKU: 1202:3451); 8" (20cm) (SKU: 1202:3452); 10" (25cm) (SKU: 1202:3453); 12" (30cm) (SKU: 1202:3454)
* Color Forest Green: 7 Lengths: 4" (10cm) (SKU: 1203:3448); 5" (12cm) (SKU: 1203:3449); 6" (15cm) (SKU: 1203:3450); 7" (18cm) (SKU: 1203:3451); 8" (20cm) (SKU: 1203:3452); 10" (25cm) (SKU: 1203:3453); 12" (30cm) (SKU: 1203:3454)
* Color Olive Green: 7 Lengths: 4" (10cm) (SKU: 1204:3448); 5" (12cm) (SKU: 1204:3449); 6" (15cm) (SKU: 1204:3450); 7" (18cm) (SKU: 1204:3451); 8" (20cm) (SKU: 1204:3452); 10" (25cm) (SKU: 1204:3453); 12" (30cm) (SKU: 1204:3454)
* Color Sage Green: 7 Lengths: 4" (10cm) (SKU: 1201:3448); 5" (12cm) (SKU: 1201:3449); 6" (15cm) (SKU: 1201:3450); 7" (18cm) (SKU: 1201:3451); 8" (20cm) (SKU: 1201:3452); 10" (25cm) (SKU: 1201:3453); 12" (30cm) (SKU: 1201:3454)
* Color Turquoise: 7 Lengths: 4" (10cm) (SKU: 1205:3448); 5" (12cm) (SKU: 1205:3449); 6" (15cm) (SKU: 1205:3450); 7" (18cm) (SKU: 1205:3451); 8" (20cm) (SKU: 1205:3452); 10" (25cm) (SKU: 1205:3453); 12" (30cm) (SKU: 1205:3454)
* Color Denim Blue: 7 Lengths: 4" (10cm) (SKU: 1207:3448); 5" (12cm) (SKU: 1207:3449); 6" (15cm) (SKU: 1207:3450); 7" (18cm) (SKU: 1207:3451); 8" (20cm) (SKU: 1207:3452); 10" (25cm) (SKU: 1207:3453); 12" (30cm) (SKU: 1207:3454)
* Color Royal Blue: 7 Lengths: 4" (10cm) (SKU: 1206:3448); 5" (12cm) (SKU: 1206:3449); 6" (15cm) (SKU: 1206:3450); 7" (18cm) (SKU: 1206:3451); 8" (20cm) (SKU: 1206:3452); 10" (25cm) (SKU: 1206:3453); 12" (30cm) (SKU: 1206:3454)
* Color Navy: 7 Lengths: 4" (10cm) (SKU: 1208:3448); 5" (12cm) (SKU: 1208:3449); 6" (15cm) (SKU: 1208:3450); 7" (18cm) (SKU: 1208:3451); 8" (20cm) (SKU: 1208:3452); 10" (25cm) (SKU: 1208:3453); 12" (30cm) (SKU: 1208:3454)
* Color Rust: 7 Lengths: 4" (10cm) (SKU: 1210:3448); 5" (12cm) (SKU: 1210:3449); 6" (15cm) (SKU: 1210:3450); 7" (18cm) (SKU: 1210:3451); 8" (20cm) (SKU: 1210:3452); 10" (25cm) (SKU: 1210:3453); 12" (30cm) (SKU: 1210:3454)
* Color Dark Brown: 7 Lengths: 4" (10cm) (SKU: 1211:3448); 5" (12cm) (SKU: 1211:3449); 6" (15cm) (SKU: 1211:3450); 7" (18cm) (SKU: 1211:3451); 8" (20cm) (SKU: 1211:3452); 10" (25cm) (SKU: 1211:3453); 12" (30cm) (SKU: 1211:3454)
* Color Light Grey: 7 Lengths: 4" (10cm) (SKU: 1212:3448); 5" (12cm) (SKU: 1212:3449); 6" (15cm) (SKU: 1212:3450); 7" (18cm) (SKU: 1212:3451); 8" (20cm) (SKU: 1212:3452); 10" (25cm) (SKU: 1212:3453); 12" (30cm) (SKU: 1212:3454)
* Color Dark Grey: 5 Lengths: 4" (10cm) (SKU: 1213:3448); 5" (12cm) (SKU: 1213:3449); 6" (15cm) (SKU: 1213:3450); 7" (18cm) (SKU: 1213:3451); 8" (20cm) (SKU: 1213:3452)