Re: Multiple multiple selects

At 2:26 PM -0700 7/16/00, Steff Osborne wrote:

Hi all, I have a question about handling several multiple select boxes. As we all know, doing multiple text boxes with the same name is easy: <input type="text" name="foo[]"> Handling one multiple select box is also easy: <select name="foo[]" multiple> But what about doing several multiple select boxes? <select name="foo[][]" multiple> doesn't seem to work. Can anybody give me some ideas? What I need for this is a 3-D array of $foo["select box"]["selected item"], and I can't seem to get that.

This won't work in PHP3 - I haven't tried PHP4, but I believe something like this _will_ work there. In PHP3, arrays in form variable names are limited to 1 dimension. A workaround is to do something like <select name="foo_1[]" multiple> ... <select name="foo_2[]" multiple> ... and then in the form processing program, do $i = 1; $var_name = 'foo_1'; while (is_array($$var_name)) { # Process elements of foo_i array (in $$var_name) $i++; $var_name = "foo_$i"; } You could also pass a 'foo_count' as a HIDDEN form variable and do for ($i=1; $i <= $foo_count; $i++) { $your_array = ${foo_$i}; # not 100% sure of this syntax # Process $your_array } - steve +--- unix and cats: -----------------------------------------------------+

| Steve Edberg                           University of California, Davis |
| sbedberg@ucdavis.edu                               Computer Consultant |
| http://aesric.ucdavis.edu/                   http://pgfsun.ucdavis.edu |

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