因为我使用此代码获取空白页面，我的代码如下
请检查我想要从xml标签中检索数据的给定链接，如何从xml中检索返回解决方案值。
PHP
<?php
$xml = simplexml_load_file("result.xml");
foreach($xml->xm as $xm) {
$totalfare = $xm->{'return-solutions'}->solution->{'pricing-summary'}-> {'total-fare'}. "<br>";
echo $totalfare;
}
?>
xml如下： - 标签下面有很多索引，并且在完成向前解决方案之后会有很多索引，但是返回解决方案
XML
<?xml version="1.0" encoding="UTF-8"?>
<air-search-result>
<onward-solutions>
<solution index="1">
<pricing-summary>
<base-fare>2230.0</base-fare>
<markup>10.0</markup>
<discount>-25.0</discount>
<taxes>1583.0</taxes>
<total-fare>3798</total-fare>
</pricing-summary>
<flights>
<flight>
<segments>
<segment>
<index>1</index>
<departure-airport>DEL</departure-airport>
<departure-terminal>3</departure-terminal>
<arrival-airport>BOM</arrival-airport>
<arrival-terminal>2</arrival-terminal>
<departure-date-time>2016-11-29T11:30:00</departure-date-time>
<arrival-date-time>2016-11-29T13:40:00</arrival-date-time>
<flight-number>316</flight-number>
<airline>9W</airline>
<operating-airline>9W</operating-airline>
<stops>0</stops>
<equipment>73H</equipment>
<duration>7800</duration>
</segment>
</segments>
</flight>
</flights>
<pax-pricing-info-list>
<pax-pricing-info>
<pax-type>ADT</pax-type>
<pricing-info-list>
<pricing-info>
<index>1</index>
<fare-basis-code>O2IPOD</fare-basis-code>
<fare-key>supp_AMADEUS|si-api-2526e960-7e7e-4ce3-bf32-0843b23c2833|fk_retail_9W_316_1480399200000_O2IPOD_true__fpr_3798</fare-key>
<fare-type>Refundable</fare-type>
<fare-subtype></fare-subtype>
<pricing-elements>
<pricing-element>
<category>BF</category>
<amount>2230.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>YQ</code>
<amount>700.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>YR</code>
<amount>50.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>UDF</code>
<amount>564.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>JN</code>
<amount>111.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>PSF</code>
<amount>150.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>AIRLINE-MSC</code>
<amount>4.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>AIRLINE-MSC</code>
<amount>4.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>CUTE</code>
<amount>0.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>OCT</code>
<amount>0.0</amount>
</pricing-element>
<pricing-element>
<category>DIS</category>
<amount>-25.0</amount>
</pricing-element>
<pricing-element>
<category>MKP</category>
<amount>10.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>CLEARTRIP-SVC</code>
<amount>0.0</amount>
</pricing-element>
</pricing-elements>
</pricing-info>
</pricing-info-list>
<booking-info-list>
<booking-info>
<index>1</index>
<segment-index>1</segment-index>
<pricing-info-index>1</pricing-info-index>
<booking-class>O</booking-class>
<cabin-type>E</cabin-type>
<ticket-type>E</ticket-type>
<external-references>
<external-reference>
<name>AMD_VC_DEL_BOM_ADT</name>
<value>9W</value>
</external-reference>
<external-reference>
<name>tm-ignore-cacheExpiryTime</name>
<value>1480152504475</value>
</external-reference>
<external-reference>
<name>tm-ignore-cachePopulatedTime</name>
<value>1480066104475</value>
</external-reference>
<external-reference>
<name>AMD_BP_DEL_BOM_ADT</name>
<value>Y</value>
</external-reference>
</external-references>
</booking-info>
</booking-info-list>
</pax-pricing-info>
</pax-pricing-info-list>
</solution>
</onward-solutions>
<return-solutions>
<solution index="1">
<pricing-summary>
<base-fare>1530.0</base-fare>
<markup>10.0</markup>
<discount>-25.0</discount>
<taxes>1653.0</taxes>
<total-fare>3168</total-fare>
</pricing-summary>
<flights>
<flight>
<segments>
<segment>
<index>1</index>
<departure-airport>BOM</departure-airport>
<departure-terminal>2</departure-terminal>
<arrival-airport>DEL</arrival-airport>
<arrival-terminal>3</arrival-terminal>
<departure-date-time>2016-12-29T11:00:00</departure-date-time>
<arrival-date-time>2016-12-29T13:10:00</arrival-date-time>
<flight-number>307</flight-number>
<airline>9W</airline>
<operating-airline>9W</operating-airline>
<stops>0</stops>
<equipment>73H</equipment>
<duration>7800</duration>
</segment>
</segments>
</flight>
</flights>
<pax-pricing-info-list>
<pax-pricing-info>
<pax-type>ADT</pax-type>
<pricing-info-list>
<pricing-info>
<index>1</index>
<fare-basis-code>O2IPOD</fare-basis-code>
<fare-key>supp_AMADEUS|si-api-56b28b75-bc04-4dee-975e-e9c90e3b0391|fk_retail_9W_307_1482989400000_O2IPOD_true__fpr_3168</fare-key>
<fare-type>Refundable</fare-type>
<fare-subtype></fare-subtype>
<pricing-elements>
<pricing-element>
<category>BF</category>
<amount>1530.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>YQ</code>
<amount>700.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>YR</code>
<amount>50.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>JN</code>
<amount>128.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>OCT</code>
<amount>138.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>UDF</code>
<amount>477.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>PSF</code>
<amount>150.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>AIRLINE-MSC</code>
<amount>5.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>AIRLINE-MSC</code>
<amount>5.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>CUTE</code>
<amount>0.0</amount>
</pricing-element>
<pricing-element>
<category>DIS</category>
<amount>-25.0</amount>
</pricing-element>
<pricing-element>
<category>MKP</category>
<amount>10.0</amount>
</pricing-element>
<pricing-element>
<category>TAX</category>
<code>CLEARTRIP-SVC</code>
<amount>0.0</amount>
</pricing-element>
</pricing-elements>
</pricing-info>
</pricing-info-list>
<booking-info-list>
<booking-info>
<index>1</index>
<segment-index>1</segment-index>
<pricing-info-index>1</pricing-info-index>
<booking-class>O</booking-class>
<cabin-type>E</cabin-type>
<ticket-type>E</ticket-type>
<external-references>
<external-reference>
<name>AMD_BP_BOM_DEL_ADT</name>
<value>Y</value>
</external-reference>
<external-reference>
<name>tm-ignore-cacheExpiryTime</name>
<value>1480144206652</value>
</external-reference>
<external-reference>
<name>tm-ignore-cachePopulatedTime</name>
<value>1480057806652</value>
</external-reference>
<external-reference>
<name>AMD_VC_BOM_DEL_ADT</name>
<value>9W</value>
</external-reference>
</external-references>
</booking-info>
</booking-info-list>
</pax-pricing-info>
</pax-pricing-info-list>
</solution>
</return-solutions>
</air-search-result>
答案 0 :(得分：0)
<?php
$rslt = file_put_contents('file.xml', $result);
$xm = new simpleXMLElement($result);
foreach($xm as $row)
{
echo $row->getName(). ":" .$row. "<br>";
}
?>
在此代码中，您可以继续前进以及返回解决方案数据