note 26556 added to language.references

An interesting thing happens when you use a variable that has been set to a reference as the iterated value in foreach statements. Without unset-ing the iterated value variable before the foreach, each iteration will change the content pointed to by the reference. $field = &$someVariable; print $someVariable; // unset($field); // Without this, the following will probably not work they way you want. It will set the contents of $someVariable to the current iterated value. It is left at the end as the last iterated value. foreach ($fields as $field) { print $field; } print $someVariable; // This won't print out the same as the first one -- http://www.php.net/manual/en/language.references.php http://master.php.net/manage/user-notes.php?action=edit+26556 http://master.php.net/manage/user-notes.php?action=delete+26556 http://master.php.net/manage/user-notes.php?action=reject+26556