note 13932 added to control-structures.foreach.php

As info@borderblue.com pointed out above, the following are *NOT* functionally identical: reset ($arr); while (list($key, $value) = each ($arr)) { echo "Key: $key; Value:$value\n"; } foreach ($arr as $key => $value) { echo "Key: $key; Value:$value\n"; } The manual erroneously states that they are. Given this loop: $fruit = array("apple", "orange", "pear", "banana"); foreach ($fruit as $value) { print "$fruit "; unset($fruit[sizeof($fruit) - 1]; } The foreach loop will iterate through the entire loop, even though you unset() it as you go. So it will output this: apple orange pear banana The "functional equivalent" looks like this: while (list(, $value) = each($fruit)) { echo "$fruit "; unset($fruit[sizeof($fruit) - 1]; } Will unset the values properly and not iterate through the unset values. So it will output something like this: apple orange And that's all. It's a small difference, but it can be an important one. http://www.php.net/manual/en/control-structures.foreach.php