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[Filesystem] Add third argument $lock to Filesystem::appendToFile #16078

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Nov 8, 2021
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[Filesystem] Add third argument $lock to Filesystem::appendToFile #16078

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6 changes: 6 additions & 0 deletions components/filesystem.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -311,10 +311,16 @@ The ``file.txt`` file contains ``Hello World`` now.
contents at the end of some file::

$filesystem->appendToFile('logs.txt', 'Email sent to [email protected]');
// with the third argument set to true you can lock the file when writing to it.
$filesystem->appendToFile('logs.txt', 'Email sent to [email protected]', true);

If either the file or its containing directory doesn't exist, this method
creates them before appending the contents.

.. versionadded:: 5.4

The third argument ``$lock`` was introduced in Symfony 5.4.

Error Handling
--------------

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