php - 从xml文件中全选，其中person ='Bob'

Question

因此，当我将php与MySQL结合使用时，我只是这样做了：

$result = $mysqli->query("SELECT * FROM table WHERE person='Bob'");

我现在将PHP与XML结合使用，但不知道如何执行此操作。我尝试了谷歌搜索，但不知道在XML中将其称为什么。

我的XML是：

<People>
    <person>Bob</person>
    <about>Bob is a blob. He is 20 Years old, etc</about>
</People>
<People>
    <person>Jim</person>
    <about>Jim is 90 Years old, he plays basketball, etc</about>
</People>
<People>
    <person>Steve</person>
    <about>Steve is a superhero with the ability to fly.</about>
</People>

我基本上是想回应某个人的信息。因此，如果用户搜索Jim，它将回显：

Name: Jim
About: Jim is 90 Years old, he plays basketball, etc

Answer 1

使用XPath。

XML：

<data>
    <People>
        <person>Bob</person>
        <about>Bob is a blob. He is 20 Years old, etc</about>
    </People>
    <People>
        <person>Jim</person>
        <about>Jim is 90 Years old, he plays basketball, etc</about>
    </People>
    <People>
        <person>Steve</person>
        <about>Steve is a superhero with the ability to fly.</about>
    </People>
</data>

PHP代码：

$xml = new SimpleXMLElement($xml_string);
$result = $xml->xpath('/data/People[person="Jim"]');
var_dump($result);

输出：

array(1) {
    [0]=>
        object(SimpleXMLElement)#2 (2) {
            ["person"]=>
                string(3) "Jim"
            ["about"]=>
                string(45) "Jim is 90 Years old, he plays basketball, etc"
        }
}