PHP 5 >= 5.1.0, PHP 7, PHP 8
posix_access - Determine accessibility of a file
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posix_access( string$filename, [int$flags = 0] ): bool

posix_access checks the user's permission of a file.



The name of the file to be tested.


A mask consisting of one or more of POSIX_F_OK, POSIX_R_OK, POSIX_W_OK and POSIX_X_OK.

POSIX_R_OK, POSIX_W_OK and POSIX_X_OK request checking whether the file exists and has read, write and execute permissions, respectively. POSIX_F_OK just requests checking for the existence of the file.

Return Values

Returns true on success or false on failure.

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