RE: [PHP] unexpected array_diff output

On 30 April 2004 09:47, Frederic Noyer wrote: > Hello there ! > I am trying to fill and then compare two arrays: one > filled by a > foreach construct, and the second by a while construct. > I check both with a print_r to be sure that both are correctly filled > (which seems to be the case). But then, when I try to compare > them with > a array_diff , the result is incoherent (at least to me...). I have > tried several variant, but I don't understand what's wrong. Sure you > guys can tell me where is my mistake. > > Here is the code: > > <? > > // creates first array (from a _POST[''] ) > foreach ($_POST['input_auteur'] AS $aut_ligne) { > $part_ligne = explode(",",$aut_ligne); > $arr1[] = (string) $part_ligne['2']; > } > echo "Array from POST :"; > print_r ($arr1); I don't have any great insight into what appear to be your odd array_diff() results, but try using var_dump() instead of print_r() -- it will give you more information about *exactly* what values are stored in the arrays, and it may just be that you'll spot an odd discrepancy. Cheers! Mike --------------------------------------------------------------------- Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning & Information Services, JG125, James Graham Building, Leeds Metropolitan University, Beckett Park, LEEDS, LS6 3QS, United Kingdom Email: m.ford@leedsmet.ac.uk Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211