Php 如何使用simplexml\u load\u字符串读取XML标记的值

如何读取指令标记“DO IT”的值

---

如何提取=>使用正确关闭的

标记为您的blob提取=>DoIt

：

$XML_BLOB = '
    <Rate maxRate="HIGH" Type="PROD" situs="DESTINATION" inputOutputType="OUTPUT" FromParty="BUYER">
        <Instruction instructionLevel="DESIGN" instructionId="1234">DO IT</Instruction>
    </Rate>';

$xml = simplexml_load_string($XML_BLOB);
$content = (string)$xml->Instruction;

php > var_dump($content);
string(5) "DO IT"

现在，您可以使用预期的层次结构访问它：

php > echo $xml->Rate->Instruction;
DO IT

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或者，您可以使用Xpath表达式：

$instruction = $xml->xpath("Rate/Instruction");
$content = (string)$instruction[0];

php > var_dump($content);
string(5) "DO IT"

$XML\u BLOB=
做吧
';
$xml=simplexml\u load\u字符串（$xml\u BLOB）；
foreach（$xml->xpath（//Instruction/text（））作为$url）{
echo$url；
};

$result=$xml->xpath（“速率/指令”）这行吗？
$XML_DOC = '
    <root>
        <Rate maxRate="HIGH" Type="PROD" situs="DESTINATION" inputOutputType="OUTPUT" FromParty="BUYER">
            <Instruction instructionLevel="DESIGN" instructionId="1234">DO IT</Instruction>
        </Rate>
    </root>';

php > echo $xml->Rate->Instruction;
DO IT

$instruction = $xml->xpath("Rate/Instruction");
$content = (string)$instruction[0];

php > var_dump($content);
string(5) "DO IT"

$XML_BLOB = '
    <Rate maxRate="HIGH" Type="PROD" situs="DESTINATION" inputOutputType="OUTPUT" FromParty="BUYER">
        <Instruction instructionLevel="DESIGN" instructionId="1234">DO IT</Instruction>
    </Rate>';

$xml = simplexml_load_string($XML_BLOB);

foreach( $xml->xpath("//Instruction/text()") as $url ) {
    echo $url;
};