GoLang stream_isatty

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PHP stream_isatty

PHP original manual for stream_isatty [ show | php.net ]

stream_isatty

(PHP 7 >= 7.2.0)

stream_isatty — Check if a stream is a TTY

Description

bool stream_isatty ( resource $stream )

Determines if stream stream refers to a valid terminal type device. This is a more portable version of posix_isatty(), since it works on Windows systems too.

Parameters

stream

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 stream_isatty() example

This command can be used to determine if a standard output / standard error stream is redirected to a file. 

php -r "var_export(stream_isatty(STDERR));"

The above example will output something similar to:


true
php -r "var_export(stream_isatty(STDERR));" 2>output.txt

The above example will output something similar to:


false