41 lines
1.2 KiB
ReStructuredText
41 lines
1.2 KiB
ReStructuredText
.. include:: /Includes.rst.txt
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.. _deprecation-104789-1725196704:
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========================================================
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Deprecation: #104789 - Fluid variables true, false, null
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========================================================
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See :issue:`104789`
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Description
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===========
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Fluid standalone will add proper language syntax for booleans and `null`
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with Fluid v4, which will be used in TYPO3 v13. Thus, user-defined variables
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named `true`, `false` and `null` are no longer allowed.
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Impact
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======
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Assigning variables with name `true`, `false` or `null` will throw
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an exception in Fluid v4. In preparation of this change, Fluid v2.15 logs a
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deprecation level error message if any of these variable names are used.
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Affected installations
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======================
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Instances with Fluid templates using `true`, `false` or `null` as user-defined variable names.
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This should rarely happen, as it would involve using :php:`$view->assign('true', $someVar)`.
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Migration
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=========
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Template code using these variables should be adjusted to use different variable names.
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In Fluid v4, the variables will contain their matching PHP counterparts.
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.. index:: Fluid, NotScanned, ext:fluid
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