使用ajax更新php选择列表[关闭]

Question

Im New to Ajax and PHP.

I would like to update my php selectlist( which is populated from the file lastlog) using ajax.Im new to ajax and php.Im trying to use onclick javascript action to update my php select list contents from different file

function selectlist()
  {
    $count    = count(file('/var/www/php/userAccount/UserDeactivator/lastlog'));
    $userlist = file('/var/www/php/userAccount/UserDeactivator/lastlog');
    $option   = '';
    $options .= "<option disabled  =CSL>UserID(Total $count Inactive Users)</option>";
    foreach ($userlist as $ong)
      {
        $options .= '<option>' . $ong . '</option>';
      } //$userlist as $ong
    $select = '<select name="Category[]" multiple="multiple"  size="10">' . $options . '</select>';
    // $select = '<select name=''>'.$options.'</select>';
    echo $select;
  }

Answer 1

Firstly, your PHP code looks a bit off. You define $option and then append to $options which does not appear to be defined.

<?php
function selectlist(){
    $count = count(file('/var/www/php/userAccount/UserDeactivator/lastlog'));
    $userlist = file('/var/www/php/userAccount/UserDeactivator/lastlog');
    $options = '';
    $options .= "<option disabled  =CSL>UserID(Total $count Inactive Users)</option>";
    foreach($userlist as $ong) {
        $options .= '<option>' . $ong . '</option>';
    } //$userlist as $ong
    $select = '<select name="Category[]" multiple="multiple"  size="10">' . $options . '</select>';
    // $select = '<select name=''>'.$options.'</select>';
    echo $select;
}
?>

I think that is what you mean to do. Now I am a fan of JQuery, so I will give you a guess here. Since you did not post any details about your form, it's all my best guess and is untested.

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $("#action").click(function(){
        $.get("getSelect.php", function(data){
            $("#dynSelect").html(data);
        });
    });
});
</script>
<a href="#" id="action" class="button">Get Log List</a>
<div id="dynSelect"></div>