php - Unique id per first letter in array key? -


i have array looks this:

$array = array(     "aceton" => "description here",     "acetonurie" => "description here",     "adipositas" => "description here",     "bolus" => "description here",     "cataract" => "description here",     "cortisol" => "description here", );

next build definitionlist using array data:

<dl> <?php foreach ($array $key => $value): ?> <dt><?php echo $key; ?><dd><?php echo $value; ?> <?php endforeach; ?> </dl>

that works fine offcourse need more. need way generate id per unique first letter, result becomes:

<dl> <dt id="a">aceton <dd>description here <dt>acetonurie <dd>description here <dt>adipositas <dd>description here <dt id="b">bolus <dd>description here <dt id="c">cataract <dd>description here <dt>cortisol <dd>description here et cetera.. </dl>

any idea how done?

try this,

   <dl>   <?php      $tmp=array();      foreach ($array $key => $value): ?>    <dt <?php if(!in_array($key[0],$tmp))    { echo "id='".$key[0]."'"; array_push($tmp,$key[0]); } ?> >   <?php echo $key; ?>   </dt>     <dd><?php echo $value; ?></dd>   <?php endforeach; ?>   </dl>

i got,

     <dl>      <dt id="a">aceton</dt><dd>description here</dd>      <dt>acetonurie</dt><dd>description here</dd>      <dt>adipositas</dt><dd>description here</dd>      <dt id="b">bolus</dt><dd>description here</dd>      <dt id="c">cataract</dt><dd>description here</dd>      <dt>cortisol</dt><dd>description here</dd>     </dl>

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