注意：未定义的偏移量：第14行/somepath/index.php中的1

Question

I got a problem, I get an error with this code:

$totalpages = substr($totalpages[1],0,1);

The weird thing is, the code works?

This is the error i get:

Notice: Undefined offset: 1 /some/spath.php on line XX</code>

Answer 1

if (isset($totalpages[1]))
  $totalpages = substr($totalpages[1],0,1);

BTW, you're getting a notice - not an error. That's the reason why your code still works.

Answer 2

u should check is_array($totalpages) ...
or ini_set('error_reporting', E_ALL & ~E_NOTICE);
more details on error reporting

Answer 3

before you set totalpages to whatever value you set it to, set it as a array $totalpages=array(); OR suppress the warning $totalpages = substr(@$totalpages[1],0,1);