One small feature that I miss in PHP ...

    ... this is the deprecated keyword in a function (method) declaration.
    If the interpreter meets it, it generates an error of the E_WARNING level.

    It is especially sad for the absence of this word because in 5.3 there is already even a special level E_USER_DEPRECATED, but there is nothing that could generate such an error, except for the non-obvious and inconvenient trigger_error ()

    Only one word, but how much it could change. I really wait and believe what will happen.

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