Description:
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Array brackets can be used, for backwards compatibility, to specify a zero-based offset of a char on a string. However, current implementation is ambiguous and forces to use dirty workaround to avoid the problem - if you realize that it doesn't work as you imagine.


The ambiguity resides on the different behaviour of the same syntax using different types of keys and values:
- $string[$int] works like $string{$int}
- $int[$int] gives NULL
- $string[$string] works like $string{0}
- $int[$string] gives NULL

My request is:
- add a directive into the configuration file to disable the "compatibility mode" of array brackets (just because it's deprecated: I can test my script before it will definitively changed)

or - alternately, as a temporary workaround:

- if the type of key is string, parser assumes that is a key, not an offset


Thank you for taking the time to read me. =)

Reproduce code:
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$t = 'abc';
var_dump ($t[1]);
var_dump ($t['key']);
$t = 123;
var_dump ($t[1]);
var_dump ($t['key']);

Expected result:
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NULL NULL NULL NULL

Actual result:
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string(1) "b" string(1) "a" NULL NULL