note 34075 added to language.operators

Two operators that don't seem to be in the manual anywhere are the unary plus and the unary minus. The unary minus returns the opposite of its argument, and the unary plus appears to do nothing. These operators are apparently on the same level of precedence as !, ~, ++, --, the casts, and @. The following example may provide a better explanation than this paragraph did: $zero = 0; $three = 3; $four = 4; $neg_three = -3; $neg_four = -4; $a = -$three; // $a is -3 $b = -$neg_three; // $b is 3 $c = -$zero; // $c is 0 $d = +$three; // $d is 3 $e = +$neg_three; // $e is -3 $f = +$zero; // $f is 0 $g = -!$zero; // $g is -1 $h = !-$zero; // $h is 1 $i = -$d++; // $i is -3, $d is 4 ---- Manual Page -- http://www.php.net/manual/en/language.operators.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+34075 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+34075&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+34075&report=yes