Hi

This one has been driving me crazy and i'm sure its pretty simple. I have to create an xml document that looks like this (note xml modules are not an option - i have to hard code the tags)

<views>
     <view id="123456" name="all">
          <parameter id="123">Param 1</parameter>
          <parameter id="124">Param 2</parameter>
     </view>
     <view id="123457" name="detail">
          <parameter id="125">Param 3</parameter>
          <parameter id="126">Param 4</parameter>
          <parameter id="127">Param 5</parameter>
          <parameter id="128">Param 6</parameter>
     </view>
</views>

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As you can see, views may have many parameters, and my root element <views> may have many views. This data is coming from a database that returns a table like this: 
VIEW_ID    VIEW_NAME    PARAM_ID    PARAM_NAME
----------------------------------------------
123456       all          123           Param 1
123456       all          124           Param 2
123457      detail        125           Param 3
123457      detail        126           Param 4
123457      detail        127           Param 5
123457      detail        128           Param 6

[download]

I have tried lots of variations on while loops, keeping track of ids etc, but cannot quite seem to grasp it. Some code is below that i have tried

$xml = "<views>\n";
while ($row = $sth->fetchrow_arrayref){
    if (!defined($id{$row->[0]})){
        $xml .= $xml . "<view id=\"$row->[0]\" name=\"".$row->[1]."\">
+\n";
        $id{$row->[0]} = $row->[0];
        if (!defined($param{$row->[3]})){
            $xml .= $xml . "<parameter id=\"$row->[3]\">".$row->[4]."<
+/parameter>\n";
            $id{$row->[3]} = $row->[3];
        }
        
    }elsif(defined($id{$row->[0]})){
        if (!defined($param{$row->[3]})){
            $xml .= $xml . "<parameter id=\"$row->[3]\">".$row->[4]."<
+/parameter>\n";
        }
        
    }
}

[download]
There are a few confusing points for me (where would i put the closing </view> tags for example?)

If anyone has any ideas (if using a module, i will try to get it installed as hard as i can), i would be grateful!

Thanks

Joe

-----

Eschew obfuscation, espouse elucidation!

In reply to Creating simple XML from a DB query by joec_

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