Question

$xml = simplexml_load_file('demo.xml');

foreach($xml->Game as $d) {

foreach( $d->SportsBook as $sb) {

foreach( $sb->Odds as $odds) {
  //   echo $odds['LineType'].' '.$odds['LastUpdated']."<br/>";

}
} 
}

demo.xml

<?xml version="1.0" encoding="utf-8"?>
<GameOdds SportsCode="MLB">
<Game Code="121" Date="08/25/2017" Time="1:45 PM" HomeBoardNumber="11"     
Home="home" RoadBoardNumber="951" Road="Road" Note=""> <SportsBook ID="5"     
Name="5Dimes">
<Odds LineType="2"  LastUpdated="10"  />
</SportsBook>
<SportsBook ID="5" Name="3Dimes">
<Odds LineType="3"  LastUpdated="20"  />
</SportsBook> </Game>
<Game Code="122" Date="07/02/2017" Time="1:45 PM" HomeBoardNumber="11" 
Home="home" RoadBoardNumber="931" Road="Road" Note="">
<SportsBook ID="2" Name="5Dimes">
<Odds LineType="2"  LastUpdated="10"  />
</SportsBook>
<SportsBook ID="6" Name="3Dimes">
<Odds LineType="3"  LastUpdated="30"  />
</SportsBook> 
</Game>
<Game Code="121" Date="08/25/2017" Time="1:45 PM" HomeBoardNumber="11"     
Home="home" RoadBoardNumber="951" Road="Road" Note=""> <SportsBook ID="5"     
Name="5Dimes">
<Odds LineType="2"  LastUpdated="10"  />
</SportsBook>
<SportsBook ID="5" Name="3Dimes">
<Odds LineType="3"  LastUpdated="30"  />
</SportsBook> </Game>
<Game Code="121" Date="08/31/2017" Time="1:45 PM" HomeBoardNumber="11"     
Home="home" RoadBoardNumber="951" Road="Road" Note=""> <SportsBook ID="5"     
Name="5Dimes">
<Odds LineType="2"  LastUpdated="10"  />
</SportsBook>
<SportsBook ID="5" Name="3Dimes">
<Odds LineType="3"  LastUpdated="20"  />
</SportsBook> </Game>
<Game Code="121" Date="08/25/2017" Time="1:45 PM" HomeBoardNumber="11"     
Home="home" RoadBoardNumber="951" Road="Road" Note=""> <SportsBook ID="5"     
Name="5Dimes">
<Odds LineType="2"  LastUpdated="10"  />
</SportsBook>
<SportsBook ID="5" Name="3Dimes">
<Odds LineType="3"  LastUpdated="20"  />
</SportsBook> </Game>
</GameOdds>

现在更新了我的问题我想只在游戏日期=“08/25/2017”时获取，而且只能获取2个游戏。如何在每场比赛中显示特定的赔率值。像3Dimes这样的东西只是值。每个游戏的游戏价值和仅3dimes值。结果将是这样的

时间：下午1:45   线型：3   LASTUPDATED：20

时间：下午1:45   线型：3   LASTUPDATED：20

提前致谢。

Answer 1

您可以使用XPath找到您感兴趣的部分，而不是尝试浏览XML层...

$xml = simplexml_load_file('t1.xml');

$xpath = $xml->xpath('//SportsBook[@Name="3Dimes"]/Odds');

foreach ($xpath as $odds)   {
    echo 'Time:'.(string)$odds->xpath('parent::*/parent::*/@Time')[0]
            .' LineType:'. $odds["LineType"]
            .' LastUpdated:'.$odds["LastUpdated"]."\n";
}

这种方式最难的是，一旦你进入'赔率'元素，你必须返回（使用parent::*）来获取时间部分。

Answer 2

使用SimpleXMLElement::xpath函数的解决方案：

$xml_data = simplexml_load_file('demo.xml');

foreach ($xml_data->Game as $game) {
    $t = $game['Time'];
    $odds = $game->xpath('SportsBook[@Name="3Dimes"]/Odds');
    echo 'Time: ' . $t . ' LineType: ' . $odds[0]->attributes()['LineType']
          . ' LastUpdated: ' . $odds[0]->attributes()['LastUpdated'] . PHP_EOL;
}

输出：

Time: 1:45 PM LineType: 3 LastUpdated: 20
Time: 1:45 PM LineType: 3 LastUpdated: 30

Answer 3

请参阅：http://www.cplusplus.com/reference/ios/ios_base/precision/

<?php // demo/temp_asher.php
/**
 * Dealing with XML document
 *
 * https://stackoverflow.com/questions/45083520/showing-specific-value-from-xml-array-through-foreach
 */
error_reporting(E_ALL);
echo '<pre>';

// TEST DATA FROM THE POST AT STACK
$xml = <<<EOD
<?xml version="1.0" encoding="utf-8"?>
<GameOdds SportsCode="MLB">
  <Game Code="121" Date="07/06/2017" Time="1:45 PM" HomeBoardNumber="11"
    Home="home" RoadBoardNumber="951" Road="Road" Note="">
    <SportsBook ID="5" Name="5Dimes">
        <Odds LineType="2"  LastUpdated="10"  />
    </SportsBook>
    <SportsBook ID="5" Name="3Dimes">
      <Odds LineType="3"  LastUpdated="20"  />
    </SportsBook>
  </Game>
  <Game Code="122" Date="07/02/2017" Time="1:45 PM" HomeBoardNumber="11"
    Home="home" RoadBoardNumber="931" Road="Road" Note="">
    <SportsBook ID="2" Name="5Dimes">
      <Odds LineType="2"  LastUpdated="10"  />
    </SportsBook>
    <SportsBook ID="6" Name="3Dimes">
      <Odds LineType="3"  LastUpdated="30"  />
    </SportsBook>
  </Game>
</GameOdds>
EOD;

// MAKE AN OBJECT
$obj = simplexml_load_string($xml);

// ACTIVATE THIS TO VISUALIZE THE OBJECT
// var_dump($obj);

// EXTRACT DATA FROM THE OBJECT
foreach ($obj->Game as $g)
{
    $t = (string)$g->attributes()->Time;
    foreach ($g->SportsBook as $s)
    {
        // SKIP ANYTHING THAT IS NOT THE "Name" WE WANT
        $n = (string)$s->attributes()->Name;
        if ($n != '3Dimes') continue;

        $o = $s->Odds;
        $olt = (string)$o->attributes()->LineType;
        $olu = (string)$o->attributes()->LastUpdated;

        // SHOW THE INFORMATION FROM THE OBJECT
        echo PHP_EOL;
        echo "Time:$t ";
        echo "LineType:$olt ";
        echo "LastUpdated:$olu ";
    }
}

Answer 4

Xpath表达式允许您使用路径和条件获取DOM的一部分。在您的情况下，您希望在Odds元素中输出具有特定属性的SportsBook。这在Xpath中非常简单。

获取任何SportsBook元素节点
//SportsBook
具有特定Name属性值
//SportsBook[@Name="3Dimes"]
获取它们的Odds个子节点 //SportsBook[@Name="3Dimes"]/Odds

这将返回DOMNodelist（如果您正在使用DOM）或数组（如果您使用的是SimpleXML）。 Time属性不在Odds节点上，而是在祖先节点上。所以我们使用那个轴。

获取Game祖先节点
//ancestor::Game
他们的Time属性
ancestor::Game/@Time
案例第一个（最近）成为一个字符串
string(ancestor::Game/@Time)

最后一步（强制转换为字符串）仅适用于DOMXpath::evaluate()。所以这是一个完整的DOM示例（其他答案已经显示了SimpleXML逻辑）。

$document = new DOMDocument();
$document->loadXml($xml);
$xpath = new DOMXpath($document);

$expression = '//SportsBook[@Name="3Dimes"]/Odds';
foreach ($xpath->evaluate($expression) as $odds) {
  printf(
    "Time:%s LineType:%d LastUpdated:%d\n",
    $xpath->evaluate('string(ancestor::Game/@Time)', $odds),
    $odds->getAttribute('LineType'),
    $odds->getAttribute('LastUpdated')
  );
}

输出：

Time:1:45 PM LineType:3 LastUpdated:20
Time:1:45 PM LineType:3 LastUpdated:30

通过foreach显示XML Array中的特定值

4 个答案: