是什么原因导致：＆QUOT;注意：未初始化字符串偏移＆QUOT;出现？ [英] What causes: "Notice: Uninitialized string offset" to appear?

问题描述

我有一个表格，用户填写，表格上有多个相同的领域里，如项目名称，项目日期，产品类别等基础上如何多种形式向用户提交：

I have a form that users fill out, on the form there are multiple identical fields, like "project name", "project date", "catagory", etc. Based on how many forms a user is submitting:

我的目标是：

1. 遍历的表格的数量


2. 创建单独的SQL INSERT语句

然而，PHP抛出我，我似乎不明白的通知：

However, PHP throws me a NOTICE that I don't seem to understand:

注意：

注意：未初始化字符串偏移：1 ... dataPasser.php在线90

Notice: Uninitialized string offset: 1 ...dataPasser.php on line 90

PHP

$myQuery = array();

if ($varsCount != 0)
{
  for ($i=0; $i <= $varsCount; $i++)
  {
    $var = "insert into projectData values ('" . $catagory[$i] . "', '" .  $task[$i] . "', '" . $fullText[$i] . "', '" . $dueDate[$i] . "', null, '" . $empId[$i] ."')";
    array_push($myQuery, $var);     
  }
}

有这个问题我有引用，但他们不准确，我无法推断在实际问题源于。我将不胜AP preciate理解任何帮助是什么原因造成的阵列无法正常初始化。

There are references to this issue I am having but they are not exact and I am having trouble deducing where the actual problem stems from. I would greatly appreciate any help in understanding what is causing the array to not initialize properly.

推荐答案

如果任一下列变量实际上是字符串或空的，而不是阵列会发生这种错误，在这种情况下，使用数组语法访问它们是$ var [$ i] 无异是想在一个字符串访问特定的字符：

This error would occur if any of the following variables were actually strings or null instead of arrays, in which case accessing them with an array syntax $var[$i] would be like trying to access a specific character in a string:

$catagory
$task
$fullText
$dueDate
$empId

总之，一切都在你的插入查询。

In short, everything in your insert query.

也许 $产品类别变量拼错了？

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