posix_get_last_error
PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8
posix_get_last_error - Retrieve the error number set by the last posix function that failed
Manual
posix_get_last_error(
Retrieve the error number set by the last posix function that failed. The system error message associated with the errno may be checked with posix_strerror.
Parameters
This function has no parameters.
Return Values
Returns the errno (error number) set by the last posix function that failed. If no errors exist, 0 is returned.