simplexml_load_string給出不一致的XML標籤

Question

在PHP

$str = '<?xml version="1.0"?><toplevel><CompleteSuggestion><suggestion data="google"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google maps"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google translate"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google docs"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google drive"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google classroom"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google news"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google earth"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google flights"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google calendar"/></CompleteSuggestion></toplevel>'; 
$xml = simplexml_load_string($str); 
$data = json_decode(json_encode($xml),true); 
echo "ARRAY: <pre>"; 
var_dump($data); 

與簡單的XML解析XML字符串時，在上述情況下，我得到不一致的XML標籤，我使用的是從谷歌的自動完成功能，並將其與內建議作出迴應CompleteSuggestions標記。看看php數組，我得到一個包含10個項目的CompleteSuggestion數組。前9個鍵有[0]鍵，而最後一個鍵有'[建議]鍵。這對我來說很奇怪。

任何一個人知道爲什麼簡單的XML做到這一點？我怎樣才能解決它，或解析它，因爲我的foreach得到了一個偏移錯誤。謝謝！

Answer 1

這是一個奇怪的一個 - 我得到的5.6相同的行爲（從1開始的數字陣列爲所有這些分開）。

作爲一種變通方法，我用array_pop：

<?php 

$str = '<?xml version="1.0"?><toplevel><CompleteSuggestion><suggestion data="google"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google maps"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google translate"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google docs"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google drive"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google classroom"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google news"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google earth"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google flights"/></CompleteSuggestion><CompleteSuggestion><suggestion data="google calendar"/></CompleteSuggestion></toplevel>'; 
$xml = simplexml_load_string($str); 

$data = json_decode(json_encode($xml),true); 


foreach ($data['CompleteSuggestion'] as $suggestion){ 
     $sug = array_pop($suggestion); 

     echo $sug['@attributes']['data'] . "<br />"; 
} 

Answer 2

那是非常有趣的現象。我想，這是因爲你有你的XML中的多個suggestion標籤和SimpleXML嘗試解析這個XML作爲與命名suggestion場中的目標，然後當分析器滿足另一個同名的標籤認爲對象轉換爲數組。

，所以我不會依靠內置的SimpleXML數據結構，並建議更換你預處理接收到的數據作爲利亞姆建議。