Warning: This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
Deletes the current line under cursorposition. All lines below the current
line are moved up one line. The bottom line of window is cleared. Cursor
position does not change.
Return Values
Returns FALSE
on success, otherwise TRUE
.