posix_ttyname
PHP function
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(PHP 4, PHP 5, PHP 7, PHP 8)
Determine terminal device name
Description
posix_ttyname(resource|int $file_descriptor): string|false
Returns a string for the absolute path to the current terminal device that is open on the file descriptor file_descriptor.
Parameters
Return Values
On success, returns a string of the absolute path of the file_descriptor. On failure, returns false
Errors/Exceptions
On invalid file_descriptor integer values an E_WARNING is raised.
Changelog
| Version | Description |
|---|---|
| 8.5.0 | last_error is now set to EBADF when an invalid file_descriptor is encountered. |
| 8.3.0 | Type error E_WARNINGs are now raised for integer coercions following the usual PHP type coercion semantics. |
| 8.3.0 | On invalid file_descriptor integer values an E_WARNING is now raised. |