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posix_access() checks the user's permission of a file.
Nota: Cuando safe-mode (modo-seguro) está activado, PHP comprueba si los archivos o directorios que va a utilizar tienen la misma UID que el script que está siendo ejecutado.
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. Defaults to POSIX_F_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.
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Generated: 2007-01-26 18:01:05