Re: oddity in array indexes

Hi, Thursday, May 1, 2003, 1:05:58 AM, you wrote: JB> Hi, JB> I have found an oddity in the way PHP 4.3.1 does array indexes, and JB> wonder if others can replicate it for me. Here is some test code: JB> <? JB> print '<pre>'; JB> $arr = array(1, 2, 3, 4); JB> print_r($arr); JB> $val = array_shift($arr); JB> print_r($arr); JB> $arr[] = $val; JB> print_r($arr); JB> print '</pre>'; ?>> JB> I'm interested in the array indices in the printout. When I run that JB> code on a server running 4.3.1, the output is: JB> Array JB> ( JB> [0] => 1 JB> [1] => 2 JB> [2] => 3 JB> [3] => 4 JB> ) JB> Array JB> ( JB> [0] => 2 JB> [1] => 3 JB> [2] => 4 JB> ) JB> Array JB> ( JB> [0] => 2 JB> [1] => 3 JB> [2] => 4 JB> [4] => 1 JB> ) JB> Note the last array printout -- the last index is 4, rather than 3. JB> However, if you run that identical code on an earlier version of PHP the JB> indices display how I would expect them to: JB> Array JB> ( JB> [0] => 1 JB> [1] => 2 JB> [2] => 3 JB> [3] => 4 JB> ) JB> Array JB> ( JB> [0] => 2 JB> [1] => 3 JB> [2] => 4 JB> ) JB> Array JB> ( JB> [0] => 2 JB> [1] => 3 JB> [2] => 4 JB> [3] => 1 JB> ) JB> Also, if you do further array_shift() and array_push() or [] operations, JB> the indices don't get out of whack further -- that is, the last index JB> always remains at 4, but the first three are 0-2 as expected. JB> Is this a bug, or just me missing something painfully obvious? Do other JB> folks see this behavior on recent-ish builds of PHP? I don't have 4.3.2 JB> handy to try it out on... JB> -- JB> [ joel boonstra | jboonstra@gospelcom.net ] I get the same result on 4.3.0 Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 ) Array ( [0] => 2 [1] => 3 [2] => 4 ) Array ( [0] => 2 [1] => 3 [2] => 4 [4] => 1 ) -- regards, Tom