posix_isatty Determine if a file descriptor is an interactive terminal


posix_isatty

(PHP 4, PHP 5)

posix_isattyDetermine if a file descriptor is an interactive terminal

说明

bool posix_isatty ( int $fd )

Determines if the file descriptor fd refers to a valid terminal type device.

参数

fd

The file descriptor.

返回值

Returns TRUE if fd is an open descriptor connected to a terminal and FALSE otherwise.

参见


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