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Posted by malcolm on 03/01/06 00:01
Please disregard this as I have the answer from Steve
SHOW TABLES LIKE -- I hadn't tried LIKE
On Tue, 28 Feb 2006 16:53:51 -0500, malcolm <malcolm@mbrownell.com> wrote:
> On Mon, 27 Feb 2006 19:49:28 -0500, J.O. Aho <user@example.net> wrote:
>
>> malcolm wrote:
>>> On Mon, 27 Feb 2006 17:29:51 -0500, J.O. Aho <user@example.net> wrote:
>>>
>>>> malcolm wrote:
>>>>> Hello All,
>>>>> On my rented space I have only one database. I have a few users
>>>>> at my site
>>>>> and any mysql tables I made for them have their initials as a
>>>>> prefix i.e.
>>>>> aa_phonelist, aa_addresses, aa_otherjunk
>>>>> bb_phonelist, bb_addresses, bb_otherjunk
>>>>> I want to make a drop down selection for the tables so that each
>>>>> can see his/her tables
>>>>> but ONLY theirs. What I really want is a query like 'Show tables
>>>>> where prefix like aa_'
>>>>> and send the results to the drop down. Obviously that won't work
>>>>> but I have wracked my
>>>>> small brain for quite some time now and can't seem to find something
>>>>> that will work.
>>>>> I have tried to use the show table results with things like in_array
>>>>> but I just can't
>>>>> make it work. This is on a logged-in page so I know the prefix but
>>>>> I can't seem to limit
>>>>> show tables at all and I can't find a way to strip out the other
>>>>> prefixes from the resulting
>>>>> array. Not zillions but quite a few tables and new ones all the
>>>>> time, so this needs to be
>>>>> dynamic.
>>>>
>>>> Look at the mysql_list_tables() function, if you aren't using mysql
>>>> on the host, then it will be more tricky. If you use the function,
>>>> then you will need to filter the result when you got it to PHP, while
>>>> the alternative options could work with WHERE statements.
>>>>
>>>> http://www.php.net/manual/en/function.mysql-list-tables.php
>>>>
>>>>
>>>> //Aho
>>> Thanks Aho but I'm able to list the tables ok and do the drop down
>>> but
>>> I can't figure how to filter the array returned by the 'show tables'
>>> query.
>>> That function does the same but I don't see any way there to filter the
>>> result. I'm looking at array_clean now, thanks for reply.
>>
>> If you save the results from the "query" into an array, you can use
>> array_filter()
>>
>> http://www.php.net/manual/en/function.array-filter.php
>>
>> and a function that returns true if the initials of a string is the
>> same as for the user, something like this may work:
>>
>> //we assume that $initials contains the initials of the user
>>
>> function is_user($var) {
>> global $initials;
>> if(substr($var, 0, 2)==$initials) {
>> return true;
>> }
>> return false;
>> }
>>
>> //$table_array is a array with all the tables
>> $user_tables=array_filter($table_array, "is_user"));
>>
>> //$user_tables should only contain tables with the same initials as the
>> users
>>
>>
>> or you can do a loop where you check which tables are okey to list and
>> at the same time type out the options.
>>
>> for($i=0;$i<count($table_array);$i++) {
>> if(substr($table_array[$i], 0, 2)==$initials) {
>> echo "<option>".$table_array[$i]."</option>\n";
>> }
>> }
>>
>>
>>
>> //Aho
>
>
> Thank you again Aho but I can't seem to get anything out of your code.
> I have tried all the things I can think of but I get no output. No
> errors
> and if I print_r the table_array I can see the array but if I run this
> code
> no matter the initials I use, I get no output. Still working, thanks
> again.
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