致命错误：在非对象上调用成员函数Query（） [英] Fatal error: Call to a member function Query() on a non-object

问题描述

我输入了以下代码并且我收到了错误，

I had Typed following code and i had getting error as ,

Fatal error: Call to a member function Query() on a non-object





<pre lang="php">$strQuery = &#39;SELECT * FROM `allraw_material&#39;;


  $objDbResult = $objDatabase-&gt;Query($strQuery);


  $objProjectArray = AllrawMaterial::InstantiateDbResult($objDbResult);


  foreach ($objProjectArray as $objProject) {
      _p($objProject-&gt;RawMaterial . &#39; has a budget of $&#39; . $objProject-&gt;BasicRate);
      _p(&#39;&lt;br/&gt;&#39;, false);
  }</pre>

推荐答案

strQuery =&＃39; SELECT * FROM`allraw_material&＃39 ;;

strQuery = 'SELECT * FROM `allraw_material';

objDbResult =

objDbResult =

objDatabase-& gt;查询（

objDatabase->Query(

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