Simplexml不会向xml添加子元素或属性-Simplexmlwon'taddchildrenorattributestoxml

0  

You already have player child in your players. I think you need another name for players parent $xml->players->addChild("player2", " ");

你已经有球员的孩子了。我认为您需要为父类$xml->播放器->addChild("player2"， " ")命名;

Edit: as I tested the code I saw I was wrong

编辑:当我测试代码时，我发现我错了

this actually works

这实际上是

$xml = '

    
    
        1
        
        
            
                red
            
            
                purple
            
        
    
';


$xml = simplexml_load_string($xml);
$newPlayer = $xml->players->addChild("player", " ");
$newPlayer->addAttribute("id", "12313123123");
$newGame = $newPlayer->addChild("game", "");
$newGame->addAttribute("id", "1");
$newColor = $newGame->addChild("color", "blue");
echo $xml->asXML();

the result:

结果:

 
 
     
     
        1 
         
         
             
                red 
             
             
                purple 
             
         
        
            
                blue