PHP commits numeric keys in an array

Question

For some reason, when deleting elements from the array, I leave the keys, such as 0, 2, 3, 4, 6, 9, instead of 0, 1, 2, 3, 4, 5. Therefore, I'm trying to find out why and what I can do to fix this without sorting everything through sort() , as this will lead to ordering things. I just want to talk again in a conversation.

Answer 1

Use array_values() to get the values ​​of the original array and return them to the new array. This new array contains new numeric keys.

 $new_array = array_values($old_array); 

Answer 2

You should use array_splice() to remove elements from your array so that it changes the key the way you want at the same time.

You have to be careful with array_values() as it will not (or at least not work) because it can reorder your number indices . If you add a value to index 0 after the value at index 3, the value at index 0 will be placed at the end of the array returned by array_values() , then it will appear first in yours.

Answer 3

Since keys do not necessarily matter, you can simply run your final array of results via array_values() . It leaves all the values ​​in the order in which they were already, resetting all the keys to consecutive numerical values.