Re: Array dereferencing of scalars

Christoph Becker wrote on 08/06/2015 22:11:

The behavior of dereferencing scalars as if they were arrays or strings is arguable: <?php $foo = 42; $foo['bar']; // => NULL

A few things to note here: - accessing a *numeric* offset of a *string* is valid (selects a single character) - accessing a *string* offset of another string is interpreted as access to character 0, with a Warning issued - de-referencing this to two levels ($string['key']['key']) and then attempting to write is a Fatal error - as discussed elsewhere, coercing a NULL to an array seems perfectly reasonable - assigning to an offset of anything other than a string or array results in a Warning and no change to the variable While I agree that it's kind of surprising not to get even a Notice in your example, I'm not 100% sure what the behaviour should be, given how many different scenarios already have different behaviour. Maybe someone needs to come up with a generalised rule? Regards, -- Rowan Collins [IMSoP]