Predefined Constants
 
The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
 
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    F_DUPFD(integer)
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    F_GETFD(integer)
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    F_GETFL(integer)
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    F_GETLK(integer)
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    F_GETOWN(integer)
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    F_RDLCK(integer)
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    F_SETFL(integer)
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    F_SETLK(integer)
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    F_SETLKW(integer)
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    F_SETOWN(integer)
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    F_UNLCK(integer)
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    F_WRLCK(integer)
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    O_APPEND(integer)
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    O_ASYNC(integer)
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    O_CREAT(integer)
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    O_EXCL(integer)
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    O_NDELAY(integer)
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    O_NOCTTY(integer)
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    O_NONBLOCK(integer)
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    O_RDONLY(integer)
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    O_RDWR(integer)
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    O_SYNC(integer)
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    O_TRUNC(integer)
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    O_WRONLY(integer)
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    S_IRGRP(integer)
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    S_IROTH(integer)
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    S_IRUSR(integer)
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    S_IRWXG(integer)
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    S_IRWXO(integer)
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    S_IRWXU(integer)
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    S_IWGRP(integer)
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    S_IWOTH(integer)
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    S_IWUSR(integer)
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    S_IXGRP(integer)
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    S_IXOTH(integer)
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    S_IXUSR(integer)
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