8000 Minor rewording by ThomasLandauer · Pull Request #15388 · symfony/symfony-docs · GitHub
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Minor rewording #15388

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May 31, 2021
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Minor rewording #15388

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15 changes: 7 additions & 8 deletions components/http_foundation/session_configuration.rst
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Expand Up @@ -154,17 +154,16 @@ Configuring Garbage Collection
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

When a session opens, PHP will call the ``gc`` handler randomly according to the
probability set by ``session.gc_probability`` / ``session.gc_divisor``. For
example if these were set to ``5/100`` respectively, it would mean a probability
of 5%. Similarly, ``3/4`` would mean a 3 in 4 chance of being called, i.e. 75%.
probability set by ``session.gc_probability`` / ``session.gc_divisor`` in ``php.ini``.
For example if these were set to ``5/100``, it would mean a probability of 5%.

If the garbage collection handler is invoked, PHP will pass the value stored in
the ``php.ini`` directive ``session.gc_maxlifetime``. The meaning in this context is
that any stored session that was saved more than ``gc_maxlifetime`` ago should be
deleted. This allows one to expire records based on idle time.
If the garbage collection handler is invoked, PHP will pass the value of
``session.gc_maxlifetime``, meaning that any stored session that was saved more
than ``gc_maxlifetime`` seconds ago should be deleted. This allows to expire records
based on idle time.

However, some operating systems (e.g. Debian) do their own session handling and set
the ``session.gc_probability`` variable to ``0`` to stop PHP doing garbage
the ``session.gc_probability`` directive to ``0`` to stop PHP doing garbage
collection. That's why Symfony now overwrites this value to ``1``.

If you wish to use the original value set in your ``php.ini``, add the following
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