duplicates

I am working in php. i have script.

<select name=’player[$player_id]’>
<option value=’0′ SELECTED></option>”;
foreach ($a as $rowas)
{
echo “<option value='” . $rowas[‘id’] . “‘”; if ($zaidejas_id == $rowas[‘id’]) print “SELECTED”; echo”>” . $rowas[‘name’] . ” ” . $rowas[‘surname’] . “</option>”;
}
echo”</select>

it’s print many.
<select name=’player[1]’>
<option value=’0′ SELECTED></option>”;
<option value=’1′>gar garin</option>
<option value=’2′>Kavi garnet</option>
</select>

<select name=’player[2]’>
<option value=’0′ SELECTED></option>”;
<option value=’1′>gar garin</option>
<option value=’2′>Kavi garnet</option>
</select>

<select name=’player[13]’>
<option value=’0′ SELECTED></option>”;
<option value=’1′>gar garin</option>
<option value=’2′>Kavi garnet</option>
</select>

and etc. i want what if select in one selection option ex. “gar garin” if in others selections disable this name

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