重定向到具有相同形式的其他URL

Question

i am new to PHP and trying to arrive with similar functionality given in URL .

i have a form with four select options, result will be retrived when last option selected.

my current code is :

{
  $result = mysql_query($query,$con);

  if(!$result)    
    echo mysql_error();

  $option = "";

  while($row = mysql_fetch_assoc($result)) {
    $option .= '<option value = "'.str_replace(' ', '_', $row['bankname']).'">'.$row['bankname'].'</option>';
  }

  str_replace(' ', '_', $row['bankname'])  
?>

<form method = "POST" action = "">

<select name = "bank" onChange="document.location.href=bank[selectedIndex].value">
<?php echo $option; ?> 

</select>

</form>

}

Probably i am asking very high level question, but please help.

Regards, Anitha

Answer 1

您可以使用ajax进行首次发送，并且ajax成功后，您可以更改提交表单，再次返回true。

Answer 2

If I got the question right, you are not looking for loading options into select box, but trying to look for a solution where the last select box have values:

    <select id = 'finalSelect'>
        <option value='http://aaaa.com'>A<option>
        <option value='http://bbbb.com'>B<option>
        <option value='http://cccc.com'>C<option>
    </select>

and based on the user selection your page should redirect to aaaa.com, bbbb.com or cccc.com.

If I am right about your requirement, all you have to do is:

    <select id = 'finalSelect' ONCHANGE="location = this.options[this.selectedIndex].value;>
        <option value='http://aaaa.com'>A<option>
        <option value='http://bbbb.com'>B<option>
        <option value='http://cccc.com'>C<option>
    </select>