How to Fix Undefined Index/Offset Errors in PHP?
If you have been developing in PHP for a while, chances are, you might have encountered an index/offset error. These errors are especially common in large projects when the developer forgets to update the indexes and offsets. Here, in this article, we will show you how to fix this error by addressing the root cause of these undefined index/offset errors.
Undefined array key after unset()
on Jan 01, 1970
//When unset() is used it unsets the array keys.
//To reset the keys of an array you can use the array_merge().
//It's like magic
$array = array('a', 'b', 'c', 'd');
unset($array[2]);
$array = array_merge($array);
0
So next time you encounter such an issue in your project, don't panic and make your code more readable.
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