Description:
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I am very upset that {} string access is being depreciated in PHP 6.

$foo = 'bar';
$foo{2} = 't';

In my opinion...

$foo{2} is MUCH easier to read and understand while developing, because you know exactly what it means, 

$foo[2] is ambiguous to read, and problematic during development because $foo could be an array or a string, and in either case the code will execute without errors or notices if $foo is not the vartype you intended it to be.