php - How to fetch the values of a column named % -

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?>php  while ($row = mysql_fetch_object($sql)) {       echo $row->%; } ?>  //error parse error: syntax error, unexpected '%', expecting identifier (t_string) or variable (t_variable) or '{' or '$ 

<?php  while ($row = mysql_fetch_assoc($sql)) {   echo $row['%'];  }  ?>

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