美好的一天，
我正在尝试从客户那里读回我的答案，我在下面以数组格式发布了该客户。我开始阅读并循环输入答案，但有时我迷失了方向。
我尝试了不同的方法，但没有成功，并寻求帮助。如何正确地应用foreach，才能正确阅读以下答案？
答案以xml格式从客户端返回，但与print_r发布以更好地理解。我需要一些帮助指出我在做什么错吗？我希望打印所有返回的框，例如（大尺寸，重量及其内容
answer：
SimpleXMLElement Object ( [ratesAndServicesResponse] => SimpleXMLElement Object ( [statusCode] => 1 [statusMessage] => OK [requestID] => 61639309 [handling] => 3.0 [language] => 0 [product] => Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 1020 [sequence] => 1 ) [name] => Expedited [rate] => 34.24 [shippingDate] => 2018-12-05 [deliveryDate] => 2018-12-06 [deliveryDayOfWeek] => 5 [nextDayAM] => false [packingID] => P_0 ) [1] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 1010 [sequence] => 2 ) [name] => Regular [rate] => 34.24 [shippingDate] => 2018-12-05 [deliveryDate] => 2018-12-07 [deliveryDayOfWeek] => 6 [nextDayAM] => false [packingID] => P_0 ) ) [packing] => SimpleXMLElement Object ( [packingID] => P_0 [box] => Array ( [0] => SimpleXMLElement Object ( [name] => Extra Large [weight] => 7.8 [expediterWeight] => 7.8 [length] => 40.0 [width] => 30.5 [height] => 21.6 [packedItem] => Array ( [0] => SimpleXMLElement Object ( [quantity] => 4 [description] => Speakers ) [1] => SimpleXMLElement Object ( [quantity] => 1 [description] => CoffeMaker ) ) ) [1] => SimpleXMLElement Object ( [name] => Extra Large [weight] => 7.15 [expediterWeight] => 7.15 [length] => 40.0 [width] => 30.5 [height] => 21.6 [packedItem] => Array ( [0] => SimpleXMLElement Object ( [quantity] => 3 [description] => PowoGlove ) [1] => SimpleXMLElement Object ( [quantity] => 1 [description] => Nomopoly ) [2] => SimpleXMLElement Object ( [quantity] => 4 [description] => Iphune ) ) ) [2] => SimpleXMLElement Object ( [name] => Large [weight] => 3.95 [expediterWeight] => 3.95 [length] => 38.1 [width] => 30.5 [height] => 9.5 [packedItem] => Array ( [0] => SimpleXMLElement Object ( [quantity] => 3 [description] => Iphune ) [1] => SimpleXMLElement Object ( [quantity] => 6 [description] => RobbikCube ) ) ) ) ) [shippingOptions] => SimpleXMLElement Object ( [insurance] => No [deliveryConfirmation] => Yes [signature] => No ) [comment] => SimpleXMLElement Object ( ) [nearestPostalOutlet] => Array ( [0] => SimpleXMLElement Object ( [postalOutletSequenceNo] => 1 [distance] => 1.1 [outletName] => C/O: OTTAWA B PO [businessName] => OTTAWA B PO [postalAddress] => SimpleXMLElement Object ( [addressLine] => 59 SPARKS ST [postalCode] => K1P5A0 [municipality] => OTTAWA [province] => ON ) [phoneNumber] => 613-844-1545 [businessHours] => Array ( [0] => SimpleXMLElement Object ( [dayId] => 1 [dayOfWeek] => SUN [time] => closed ) [1] => SimpleXMLElement Object ( [dayId] => 2 [dayOfWeek] => MON [time] => 08:00-18:00 ) [2] => SimpleXMLElement Object ( [dayId] => 3 [dayOfWeek] => TUE [time] => 08:00-18:00 ) [3] => SimpleXMLElement Object ( [dayId] => 4 [dayOfWeek] => WED [time] => 08:00-18:00 ) [4] => SimpleXMLElement Object ( [dayId] => 5 [dayOfWeek] => THU [time] => 08:00-18:00 ) [5] => SimpleXMLElement Object ( [dayId] => 6 [dayOfWeek] => FRI [time] => 08:00-18:00 ) [6] => SimpleXMLElement Object ( [dayId] => 7 [dayOfWeek] => SAT [time] => closed ) ) ) [1] => SimpleXMLElement Object ( [postalOutletSequenceNo] => 2 [distance] => 1.3 [outletName] => C/O: PLACE DU CENTRE [businessName] => PAPETERIE THIBO [postalAddress] => SimpleXMLElement Object ( [addressLine] => 200 PROMENADE DU PORTAGE [postalCode] => J8X4H0 [municipality] => HULL [province] => QC ) [phoneNumber] => 819-777-8284 [businessHours] => Array ( [0] => SimpleXMLElement Object ( [dayId] => 1 [dayOfWeek] => SUN [time] => closed ) [1] => SimpleXMLElement Object ( [dayId] => 2 [dayOfWeek] => MON [time] => 08:00-17:30 ) [2] => SimpleXMLElement Object ( [dayId] => 3 [dayOfWeek] => TUE [time] => 08:00-17:30 ) [3] => SimpleXMLElement Object ( [dayId] => 4 [dayOfWeek] => WED [time] => 08:00-17:30 ) [4] => SimpleXMLElement Object ( [dayId] => 5 [dayOfWeek] => THU [time] => 08:00-17:30 ) [5] => SimpleXMLElement Object ( [dayId] => 6 [dayOfWeek] => FRI [time] => 08:00-17:30 ) [6] => SimpleXMLElement Object ( [dayId] => 7 [dayOfWeek] => SAT [time] => 10:00-12:00 ) ) ) ) ) )
在“ PackingID”级别不知所措时，我不知道如何循环显示所有带有项目数量和说明的包装箱
我的php文件的一部分，我开始捕获并显示接收到的数据。
if (!$xml) {
echo "Failed loading XML\n";
echo "$xml\n";
foreach (libxml_get_errors() as $error) {
echo "\t" . $error->message;
}
} else {
if ($xml->{'ratesAndServicesResponse'} ) {
$ratesAndServicesResponse = $xml->{'ratesAndServicesResponse'};
// echo "<center><font color='white'><h3>Status Code " . $ratesAndServicesResponse->{"statusCode"} . "</font></h3></center>";
// echo "<center><font color='white'><h3>Status Message " . $ratesAndServicesResponse->{"statusMessage"} . "</font></h3></center>";
// echo "<center><font color='white'><h3>request ID " . $ratesAndServicesResponse->{"requestID"} . "</font></h3></center>";
// echo "<center><font color='white'><h3>handling " . $ratesAndServicesResponse->{"handling"} . "</font></h3></center>";
// echo "<center><font color='white'><h3>language " . $ratesAndServicesResponse->{"language"} . "</font></h3></center>";
foreach ($ratesAndServicesResponse->{'product'} as $Product) {
echo "<center><font size='2' color='white'><h3>Product:" . $Product->{'name'}. "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Price:" . $Product->{'rate'} . "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Shipping Date: " . $Product->{'shippingDate'} . "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Delivery Date: " . $Product->{'deliveryDate'} . "</font></h3></center>";
// echo "<center><font <font size='2' color='white'><h3>delivery Day Of Week: " . $Product->{'deliveryDayOfWeek'} . "</font></h3></center>";
// echo "<center><font <font size='2' color='white'><h3>next Day AM: " . $Product->{'nextDayAM'} . "</font></h3></center>";
echo "<center><font color='white'><h3>packingID: " . $Product->{'packingID'} . "</font></h3></center>";
}
foreach ($ratesAndServicesResponse->{'packing'} as $packing){
echo "<center><font color='white'><h3>packingID: " . $packing->{'packingID'} . "</font></h3></center>";
}
foreach ($ratesAndServicesResponse->{'packing'} as $PackingID) {
echo "<center><font size='2' color='white'><h3>Name: " . $PackingID->{'box'}->{'name'} . "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Weight:" . $PackingID->{'box'}->{'weight'} . "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Length: " . $PackingID->{'box'}->{'length'} . "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Width: " . $PackingID->{'box'}->{'width'} . "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Height: " . $PackingID->{'box'}->{'height'} . "</font></h3></center>";
}
//im here
foreach ($ratesAndServicesResponse->{'packing'}->{'box'}->{'packedItem'} as $packeditem){
echo "<center><font size='2' color='white'><h3>quantity: " . $packeditem->{'quantity'} . "</font></h3></center>";
echo "<center><font size='2' color='white'><h3>Description: " . $packeditem->{'description'} . "</font></h3></center>";
}
// ($ratesAndServicesResponse->{'shippingOptions'} as $shippingOptions);
// echo "<center><font color='white'><h3>insurance: " . $shippingOptions->{'insurance'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>deliveryConfirmation: " . $shippingOptions->{'deliveryConfirmation'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>signature: " . $shippingOptions->{'signature'} . "</font></h3></center>";
// ($ratesAndServicesResponse->{'nearestPostalOutlet'} as $nearestPostalOutlet);
// echo "<center><font color='white'><h3>postalOutletSequenceNo: " . $nearestPostalOutlet->{'postalOutletSequenceNo'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>distance: " . $nearestPostalOutlet->{'distance'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>outletName: " . $nearestPostalOutlet->{'outletName'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>businessName: " . $nearestPostalOutlet->{'businessName'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>addressLine: " . $nearestPostalOutlet->{'postalAddress'}->{'addressLine'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>postalCode: " . $nearestPostalOutlet->{'postalAddress'}->{'postalCode'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>municipality: " . $nearestPostalOutlet->{'postalAddress'}->{'municipality'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>province: " . $nearestPostalOutlet->{'postalAddress'}->{'province'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>phoneNumber: " . $nearestPostalOutlet->{'phoneNumber'} . "</font></h3></center>";
// ($ratesAndServicesResponse->{'nearestPostalOutlet'}->{'businessHours'} as $businessHours)
// echo "<center><font color='white'><h3>dayId: " . $businessHours->{'dayId'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>dayOfWeek: " . $businessHours->{'dayOfWeek'} . "</font></h3></center>";
// echo "<center><font color='white'><h3>time: " . $businessHours->{'time'} . "</font></h3></center>";
}
else {
$messages = 'Why?';
foreach ($messages as $message) {
echo "<font color ='white'>Error Code:" . $message->code . "</font>\n";
echo "<font color ='white'>Error Msg:" . $message->description . "</font>\n\n";
}
}
}
我还以数组的形式构建了整个答案，以更好地理解
1
OK
61639309
3.0
0
Expedited
34.24
2018-12-05
2018-12-06
5
false
P_0
Regular
34.24
2018-12-05
2018-12-07
6
false
P_0
P_0
Extra Large
7.8
7.8
40.0
30.5
21.6
4
Speakers
1
CoffeMaker
Extra Large
7.15
7.15
40.0
30.5
21.6
3
PowoGlove
1
Nomopoly
4
Iphune
Large
3.95
3.95
38.1
30.5
9.5
3
Iphune
6
RobbikCube
No
Yes
No
1
1.1
C/O: OTTAWA B PO
OTTAWA B PO
59 SPARKS ST
K1P5A0
OTTAWA
ON
613-844-1545
1
SUN
closed
2
MON
08:00-18:00
3
TUE
08:00-18:00
4
WED
08:00-18:00
5
THU
08:00-18:00
6
FRI
08:00-18:00
7
SAT
closed
2
1.3
C/O: PLACE DU CENTRE
PAPETERIE THIBO
200 PROMENADE DU PORTAGE
J8X4H0
HULL
QC
819-777-8284
1
SUN
closed
2
MON
08:00-17:30
3
TUE
08:00-17:30
4
WED
08:00-17:30
5
THU
08:00-17:30
6
FRI
08:00-17:30
7
SAT
10:00-12:00
我可以打印P0的第一个实例，但不能打印其余的，为什么？如何修复foreach或正确申请？
P_0
Extra Large <---I can cpture and display
7.8
7.8
40.0
30.5
21.6
4
Speakers
1
CoffeMaker
Extra Large <--I am unable to capture the rest
7.15
7.15
40.0
30.5
21.6
3
PowoGlove
1
Nomopoly
4
Iphune
Large <--I am unable to capture the rest
3.95
3.95
38.1
30.5
9.5
3
Iphune
6
RobbikCube
XML响应
<eparcel>
<ratesAndServicesResponse>
<statusCode>1</statusCode>
<statusMessage>OK</statusMessage>
<requestID>61641078</requestID>
<handling>1.0</handling>
<language>0</language>
<product id="1020" sequence="1">
<name>Expedited</name>
<rate>24.96</rate>
<shippingDate>2018-12-05</shippingDate>
<deliveryDate>2018-12-06</deliveryDate>
<deliveryDayOfWeek>5</deliveryDayOfWeek>
<nextDayAM>false</nextDayAM>
<packingID>P_0</packingID>
</product>
<product id="1010" sequence="2">
<name>Regular</name>
<rate>24.5</rate>
<shippingDate>2018-12-05</shippingDate>
<deliveryDate>2018-12-10</deliveryDate>
<deliveryDayOfWeek>2</deliveryDayOfWeek>
<nextDayAM>false</nextDayAM>
<packingID>P_0</packingID>
</product>
<packing>
<packingID>P_0</packingID>
<box>
<name>SUPER BOX</name>
<weight>1.741</weight>
<expediterWeight>1.741</expediterWeight>
<length>22.0</length>
<width>17.0</width>
<height>13.0</height>
<packedItem>
<quantity>1</quantity>
<description>KAO Diskettes</description>
</packedItem>
</box>
<box>
<name>My Ready To Ship Item</name>
<weight>2.0</weight>
<expediterWeight>1.5</expediterWeight>
<length>30.0</length>
<width>20.0</width>
<height>20.0</height>
<packedItem>
<quantity>1</quantity>
<description>My Ready To Ship Item</description>
</packedItem>
</box>
</packing>
<shippingOptions>
<insurance>No</insurance>
<deliveryConfirmation>Yes</deliveryConfirmation>
<signature>No</signature>
</shippingOptions>
<comment/>
<nearestPostalOutlet>
<postalOutletSequenceNo>1</postalOutletSequenceNo>
<distance>0.7</distance>
<outletName>C/O: CP ATWATER</outletName>
<businessName>BRUNET ATWATER</businessName>
<postalAddress>
<addressLine>151 ATWATER</addressLine>
<postalCode>H3J2J0</postalCode>
<municipality>MONTR?AL</municipality>
<province>QC</province>
</postalAddress>
<phoneNumber>514-935-5637</phoneNumber>
<businessHours>
<dayId>1</dayId>
<dayOfWeek>SUN</dayOfWeek>
<time>closed</time>
</businessHours>
<businessHours>
<dayId>2</dayId>
<dayOfWeek>MON</dayOfWeek>
<time>09:00-19:00</time>
</businessHours>
<businessHours>
<dayId>3</dayId>
<dayOfWeek>TUE</dayOfWeek>
<time>09:00-19:00</time>
</businessHours>
<businessHours>
<dayId>4</dayId>
<dayOfWeek>WED</dayOfWeek>
<time>09:00-19:00</time>
</businessHours>
<businessHours>
<dayId>5</dayId>
<dayOfWeek>THU</dayOfWeek>
<time>09:00-19:00</time>
</businessHours>
<businessHours>
<dayId>6</dayId>
<dayOfWeek>FRI</dayOfWeek>
<time>09:00-19:00</time>
</businessHours>
<businessHours>
<dayId>7</dayId>
<dayOfWeek>SAT</dayOfWeek>
<time>10:00-15:00</time>
</businessHours>
</nearestPostalOutlet>
<nearestPostalOutlet>
<postalOutletSequenceNo>2</postalOutletSequenceNo>
<distance>0.9</distance>
<outletName>C/O: BP MONTREAL D</outletName>
<businessName>BP MONTREAL D</businessName>
<postalAddress>
<addressLine>1695 GRAND TRUNK</addressLine>
<postalCode>H3K1J0</postalCode>
<municipality>MONTREAL</municipality>
<province>QC</province>
</postalAddress>
<phoneNumber>514-846-5391</phoneNumber>
<businessHours>
<dayId>1</dayId>
<dayOfWeek>SUN</dayOfWeek>
<time>closed</time>
</businessHours>
<businessHours>
<dayId>2</dayId>
<dayOfWeek>MON</dayOfWeek>
<time>09:30-17:30</time>
</businessHours>
<businessHours>
<dayId>3</dayId>
<dayOfWeek>TUE</dayOfWeek>
<time>09:30-17:30</time>
</businessHours>
<businessHours>
<dayId>4</dayId>
<dayOfWeek>WED</dayOfWeek>
<time>09:30-17:30</time>
</businessHours>
<businessHours>
<dayId>5</dayId>
<dayOfWeek>THU</dayOfWeek>
<time>09:30-17:30</time>
</businessHours>
<businessHours>
<dayId>6</dayId>
<dayOfWeek>FRI</dayOfWeek>
<time>09:30-17:30</time>
</businessHours>
<businessHours>
<dayId>7</dayId>
<dayOfWeek>SAT</dayOfWeek>
<time>closed</time>
</businessHours>
</nearestPostalOutlet>
</ratesAndServicesResponse>
</eparcel>
答案 0 :(得分：2)
您需要在box元素上循环，然后在每个框中的packedItem上循环。像这样：
foreach ($ratesAndServicesResponse->packing->box as $box) {
echo "box name: " . $box->name . "\n";
foreach ($box->packedItem as $packeditem) {
echo "<center><font size='2' color='white'><h3>quantity: " . $packeditem->quantity . "</font></h3></center>\n";
echo "<center><font size='2' color='white'><h3>Description: " . $packeditem->description . "</font></h3></center>\n";
}
}
}
输出：
box name: SUPER BOX
<center><font size='2' color='white'><h3>quantity: 1</font></h3></center>
<center><font size='2' color='white'><h3>Description: KAO Diskettes</font></h3></center>
box name: My Ready To Ship Item
<center><font size='2' color='white'><h3>quantity: 1</font></h3></center>
<center><font size='2' color='white'><h3>Description: My Ready To Ship Item</font></h3></center>
请注意，您不需要使用->{'element'}表示法，除非元素名称中包含特殊字符，否则就可以使用->element。
答案 1 :(得分：2)
我相信XPath可以为您提供“所有盒子中的所有物品”的扁平阵列，请尝试：
foreach ($ratesAndServicesResponse->xpath("packing/box/packedItem") as $packeditem) {
echo "<center><font size='2' color='white'><h3>quantity: " . $packeditem->quantity . "</font></h3></center>\n";
echo "<center><font size='2' color='white'><h3>Description: " . $packeditem->description . "</font></h3></center>\n";
}