diff --git a/language/operators.xml b/language/operators.xml index 54d41b8177..b42ea5ea7c 100644 --- a/language/operators.xml +++ b/language/operators.xml @@ -232,9 +232,9 @@ $a = 1; $b = 2; $a = $b += 3; // $a = ($b += 3) -> $a = 5, $b = 5 -// mixing ++ and + +// mixing ++ and + produces undefined behavior $a = 1; -echo ++$a + $a++; // same as ++$a; echo $a + $a; $a++; +echo ++$a + $a++; // may print 4 or 5 ?> ]]>