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This document uses PHP Chinese website manual Release
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Phar::isWritable — Returns true if the phar archive can be modified
This method returns TRUE
if phar.readonly is 0,
and the actual phar archive on disk is not read-only.
No parameters.
Returns TRUE
if the phar archive can be modified
[#1] kristof dot coomans at telenet dot be [2009-04-23 06:08:44]
It might be not expected, but this function will return true if the file does not exist yet even if the directory is read-only. Tested on PHP 5.3.0 RC 1.
I have buffering on and when I call stopBuffering() then the "failed to open stream: Permission denied" PharException will be thrown.