Php array prompt Notice: Undefined offset Solution

When using arrays, we often encounter the Error Notice: Undefined offset when the array does not exist, resulting in our Jane array [100]. Next I will introduce how to solve this problem.

Example:

The Code is as follows:	Copy code
$ Array [1] = 'www. bKjia. c0m '; Echo $ array [0];

The input result is

Notice: Undefined offset: 1 in D: wwwrootwraskseo404.php on line 5. Let's take a look at the solution.

It's easy to solve this problem, as shown in figure

The Code is as follows:	Copy code
Echo isset ($ array [0])? $ Array [0]: 'array undefined ';

In this way, we can solve this problem very well.