Nested functions

Hi, Have been experimenting with the array_walk function and a little array debug print facility, but ran into a problem with nested functions. The code can be written with nested functions and successfully executed once; but when repeatedly executed an error appears. Can one code user-defined functions nested within one another - and repeatedly execute them? The PHP Manual: Chapter 12. Functions, says: "A function may be defined using syntax such as the following: ... Any valid PHP code may appear inside a function, even other functions and class definitions." Here is some test-bed code: <?php Function ShowList( $title, $aList ) { Function FnNested( $item, $key ) { echo "<br>$key=" . $item . "~"; } //end of FnNested echo "<br>Listing array=$title: n=" . count( $aList ); array_walk( $aList, "FnNested" ); } //end of function ShowList //mainline code $aLocated = array( 'zero', 'one', 'two', 'three' ); ShowList( "Located1", $aLocated ); ShowList( "Located2", $aLocated ); ?> Sample output: FnShowList~ Listing array=Located1: n=4 0=zero~ 1=one~ 2=two~ 3=three~ FnShowList~ Fatal error: Cannot redeclare fnnested() in c:\data\webs\webute_tst\l.php on line 6 Please advise, =dn WinNT 4.0 SP6a running PHP vn 4.0.6, Apache vn 1.3.20WinNT, MySQL vn 3.23.40-nt