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Commit 9666907

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javiereguiluzjaviereguiluz
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Document that you can't pass empty strings to console options
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‎console/input.rst

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@@ -203,3 +203,7 @@ You can combine ``VALUE_IS_ARRAY`` with ``VALUE_REQUIRED`` or
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when the option was used without a value (``command --language``) or when
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it wasn't used at all (``command``). In both cases, the value retrieved for
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the option will be ``null``.
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Similarly, due to a PHP limitation, there is no way to pass an empty string
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as the value of an option. In ``command --prefix`` and ``command --prefix=''``
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cases, the value of the ``prefix`` option will be ``null``.

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