simplexml_load_string獲取屬性

Question

源XML是：

<attributeGroup id="999" name="Information"> 
    <attribute id="123" name="Manufacturer">Apple</attribute> 
    <attribute id="456" name="Model">iPhone</attribute> 
</attributeGroup> 

代碼：

$xml = simplexml_load_string($xml); 
print_r($xml); 

輸出：

SimpleXMLElement Object 
(
    [@attributes] => Array 
     (
      [id] => 999 
      [name] => Information 
     ) 

    [attribute] => Array 
     (
      [0] => Apple 
      [1] => iPhone 
     ) 

) 

我如何也可爲g等它返回標籤attribute id和name？

Answer 1

你可以這樣使用屬性屬性來訪問它：

$x = simplexml_load_string($xml); 
$g = $x->attributeGroup; 
foreach($g->xpath("//attribute") as $attr){ 
    var_dump((string)$attr->attributes()->id); 
    var_dump((string)$attr->attributes()->name); 
    var_dump((string)$attr); // for text value 
} 

Answer 2

Try this code snippet here

<?php 
ini_set('display_errors', 1); 
$string=' <attributeGroup id="999" name="Information"> 
       <attribute id="123" name="Manufacturer">Apple</attribute> 
       <attribute id="456" name="Model">iPhone</attribute> 
    </attributeGroup> 
'; 

$xml = simplexml_load_string($string); 
$result=array(); 
foreach($xml->xpath("//attribute") as $attr) 
{ 
    $result[(string)$attr->attributes()->id]= (string) $attr->attributes()->name; 
} 
print_r($result); 

輸出：

Array 
(
    [123] => Manufacturer 
    [456] => Model 
) 

Answer 3

所以很多過於複雜的答案的東西，是非常清楚地顯示在PHP manu中人在這裏：http://php.net/manual/en/simplexml.examples-basic.php

你只需要做到這一點：

$sx = simplexml_load_string($xml); 
// $sx is the outer tag of your XML; in your example <attributeGroup> 
// Access child tags with -> 
foreach($sx->attribute as $attr){ 
    // Access attributes with ['...'] 
    var_dump((string)$attr['id']); 
    // Access text and CDATA content with (string) 
    var_dump((string)$attr); 
}