如何比较XML上的属性值，并且只使用PHP回显包含我想要的字符串的属性？

$xmlString = '<root>
    <element attribute="value1">Text1</element>
    <element attribute="value2">Text2</element>
    <element attribute="value3">Text3</element>
</root>';

$xml = simplexml_load_string($xmlString);

$searchString = "value";

foreach ($xml->element as $element) {
    foreach ($element->attributes() as $name => $value) {
        if (strpos($value->__toString(), $searchString) !== false) {
            echo "Attribute: $name, Value: $value\n";
        }
    }
}