php do while 语句

do... while语句将始终执行的代码块一次，然后检查的条件，并重复循环，而条件是真实的。

语法
do
  {
  code to be executed;
  }
while (condition);

例如
下面的例子定义了一个循环，开始与i = 1。然后它将增加1我和写一些输出。然后，条件是检查，循环将继续运行像我只要小于或等于5：

$i=1;
do
  {
  $i++;
  echo "The number is " . $i . "
";
  }
while ($i ?>

/* example 1 */

$i = 1;
while ($i     echo $i++;  /* the printed value would be
                   $i before the increment
                   (post-increment) */
}

/* example 2 */

$i = 1;
while ($i     echo $i;
    $i++;
endwhile;
?>

$q1 = 'some query on a set of tables';
$q2 = 'similar query on a another set of tables';

if ( ($r1=mysql_query($q1)) && ($r2=mysql_query($q2)) ) {

     while (($row=mysql_fetch_assoc($r1))||($row=mysql_fetch_assoc($r2))) {

         /* do something with $row coming from $r1 and $r2 */

      }
   }

?>

while ($data = mysql_fetch_assoc($requeteID))
{
  $menu .= '   $menu .= ($data['id'] == $_GET['id'] ? ' selected>' :'>');
  $menu .= $data['name'].'';
}
echo $menu;
?>