php array adding to empty array

[bagsfr]

I am using array to add up numbers from database and wonder if this would be valid:

$array[10] = $array[10] + 1

However the initial array has not been set and is without value. Would it assume that it is equal to 0 and after the above line become 1?

I hope I am explaining this right

Thanks

[krishnandu.sarkar]

Ya, it'll work, but not sure about the initialization thing. It's recommended to initialize them to 0.

[furious_gamer]

it will work, if $array[10] already have values.