非法字符串偏移“选项1” [英] Illegal string offset 'option 1'

问题描述

下面是我最初的code：

  $ camp_price =阵列（
   '选项1'=＆GT;阵列（
                    'ID'=＆GT; 6月30日至7月20日，
                    '周'=＆GT; 3，
                    week_price'=＆GT; 995），
   '选项2'=＆GT;阵列（
                    'ID'=＆GT; 6月30日至7月13日，
                    '周'=＆GT; 2，
                    week_price'=＆GT; 995）
  ）; 的foreach（$ camp_price为$名=＆GT; $值）{
$ TOTAL_COST [$名称] = $值['周'] * $值['week_price'];
}
 

下面是HTML code。它完美地呼应了$ TOTAL_COST直到表单被提交。然后，它显示错误：

  

警告：非法字符串偏移选项1

我不明白：

 ＆LT;选择名称=preferred_session＆GT;
  ＆LT;期权价值=选项1＆LT;如果PHP（$preferred_session =='选项1'）echo'selected =入选'; ？＆GT;＆GT;
 ？＆LT; PHP的echo $ camp_price ['选项1'] ['身份证']，'：'，$ TOTAL_COST ['选项1']; ？＆GT;欧元
 ＆LT; /选项＆GT;
 ＆LT;期权价值=2＆LT;如果PHP（$preferred_session =='选项2'）回声选定=选择; ？＆GT;＆GT;
 ？＆LT; PHP的echo $ camp_price ['选项2'] ['身份证']，'：'，$ TOTAL_COST ['选项2']; ？＆GT;欧元
 ＆LT; /选项＆GT;
＆LT; /选择＆GT;
 

解决方案

看起来像，当code触发错误运行，无论是 $ camp_price 或 $ TOTAL_COST 不是一个数组而是一个字符串。

您可能希望只发生错误点之前打印这些变量的值，并查找任何地方，你可能无意中改变了他们。

Here is my initial code:

    $camp_price=array(
   'option 1' => array(
                    'id' => 'June 30 to July 20',
                    'weeks' => 3,
                    'week_price' => 995),
   'option 2' => array(
                    'id' => 'June 30 to July 13',
                    'weeks'=> 2,
                    'week_price' => 995)
  ); 

 foreach ($camp_price as $name=>$values) {
$total_cost[$name]=$values['weeks'] * $values['week_price'];
}

Here is the HTML code. It echo perfectly the $total_cost until the form gets submitted. It then show the error:

Warning: Illegal string offset 'option 1'

Which I don't understand:

  <select name="preferred_session">
  <option value="option 1" <?php if($preferred_session =='option 1') echo'selected="selected"'; ?>>
 <?php echo $camp_price['option 1']['id'],': ', $total_cost['option 1']; ?>euros
 </option>
 <option value="2" <?php if($preferred_session =='option 2') echo 'selected="selected"'; ?>>
 <?php echo $camp_price['option 2']['id'],': ', $total_cost['option 2']; ?>euros
 </option>
</select>

解决方案

Looks like, when the code triggering the error runs, either $camp_price or $total_cost is not an array but a string.

You may want to print the values of those variables just before the point where the error occurs, and look for any places where you might have unintentionally changed them.

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