$table = array("abc201202","abc201203","abc201204");
$result =array();
foreach($table as $table_name) {
      $sql = "select * from ".$table_name;
      $rec =mysql_query($sql);
      while($row=mysql_fetch_row($rec)) {
           $result[] = $row;
      }
}

------解决方案--------------------
PHP code


$select = array();
$table = array("abc201202","abc201203","abc201204");
foreach($table as $v) {
   $select[] = "(select * from $v)";
}

$sql = join(' UNION ', $select);
$res = mysql_query($sql);

------解决方案--------------------
PHP code

$table = array("abc201202","abc201203","abc201204");
$result=array();
$count = count($table)-1;//减去一个数组下标
for ($i=0;$i<$count;$i++){
      $sql = $sql." select * from '".$table[$i]."' union all";
}
$sql=$sql." select * from '".$table[$count]."'";
$rec =mysql_query($sql);
      while($row=mysql_fetch_row($rec)) {
           $result[] = $row;
      }