php - 如何将变量从表单传递到 javascript 弹出表单？

Question

我有一个带有按钮的表单，可以打开 javascript/css 弹出窗口。在弹出窗口上，我有一个文本区域，它将用于向数据库字段添加注释。问题是我需要从主页(调用弹出窗口的页面)向其传递一个值，该值将识别数据库中要更新的条目。但我一直在努力让它发挥作用。这是我的代码。我需要将变量发送到 update.php 页面。请帮忙。

    <?php
ini_set('display_errors',1); 
error_reporting(E_ALL);

if(isset($_GET['sort']) && isset($_GET['col']) ){
   $order = $_GET['sort'];
   $column = $_GET['col'];
}
else{
   $order = 'ASC';
   $column = 'cron_id';
}

$page = 'Testing Site';
require_once('includes/head.php');
require_once('includes/mysql.php');
require_once('includes/class.tdcron.php');
require_once('includes/class.tdcron.entry.php');
date_default_timezone_set('America/Los_Angeles');

$result = mysql_query("SELECT * FROM cron WHERE active=1 ORDER BY $column $order") or die (mysql_error());
mysql_close();

$pass = "<img src='images/Checked.png' alt='Pass' width='16' height='16'/>";
$fail = "<img src='images/Stop.png' alt='Failed' width='16' height='16'/>";
$warn = "<img src='images/Warning.png' alt='Warning' width='16' height='16' />";
$com = "<img src='images/pencil.png' alt='Warning' width='16' height='16' />";

echo "<div id='tableContainer' class='tableContainer'>";
echo "<table width='100%' border='0' padding='0' cellpadding='0' cellspacing='0' class='scrollTable'>";
echo "<thead class='fixedHeader'>";
echo "<tr>";

if ($order=="ASC") { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=DESC&col=ok\" title=\"Sort the records in descending order\">Status</a></th>"; }
else { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=ASC&col=ok\" title=\"Sort the records in ascending order\">Status</a></th>"; }

echo '<th><a href="#">Schedule</a></th>';

if ($order=="ASC") { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=DESC&col=job\" title=\"Sort the records in descending order\">Job</a></th>"; }
else { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=ASC&col=job\" title=\"Sort the records in ascending order\">Job</a></th>"; }

echo '<th><a href="#">Description</a></th>';

if ($order=="ASC") { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=DESC&col=destination\" title=\"Sort the records in descending order\">Destination</a></th>"; }
else { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=ASC&col=destination\" title=\"Sort the records in ascending order\">Destination</a></th>"; }

echo '<th><a href="#">Errors</a></th>';

if ($order=="ASC") { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=DESC&col=jobtype\" title=\"Sort the records in descending order\">Job Type</a></th>"; }
else { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=ASC&col=jobtype\" title=\"Sort the records in ascending order\">Job Type</a></th>"; }

if ($order=="ASC") { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=DESC&col=catagory\" title=\"Sort the records in descending order\">Category</a></th>"; }
else { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=ASC&col=catagory\" title=\"Sort the records in ascending order\">Category</a></th>"; }

if ($order=="ASC") { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=DESC&col=ran_at\" title=\"Sort the records in descending order\">Last Ran</a></th>"; }
else { echo "<th><a href=\"" . $_SERVER["PHP_SELF"] . "?sort=ASC&col=ran_at\" title=\"Sort the records in ascending order\">Last Ran</a></th>"; }

echo '<th><a href="#">Next Run</a></th>';
echo '<th><a href="#">Log</a></th>';
echo '</tr></thead><tbody class="scrollContent">';

while($row = mysql_fetch_array($result)){

   if($row['ok'] == 1){$status = $pass;}
   elseif($row['ok'] == 0){$status = $fail;}
   else{$status = $warn;}
   echo '<tr>';
   echo
      '<td>
         **<form name="frm_comment" action="" onsubmit="return false;" >' . $status . '&nbsp;' .
         '<input type="image" src="images/pencil.png" onclick="popup_show(\'popup\', \'popup_drag\', \'popup_exit\', \'mouse\', -10, -5);" width=\'16\' height=\'16\' />
         </form>**
      </td>';
   echo '<td>' . $row['schedule'] . '</td>';
   echo '<td>' . $row['job'] . '</td>';
   echo '<td>' . $row['description'] . '</td>';
   echo '<td>' . $row['destination'] . '</td>';
   echo '<td>' . $row['errormsgs'] . '</td>';
   echo '<td>' . $row['jobtype'] . '</td>';
   echo '<td>' . $row['catagory'] . '</td>';
   echo '<td>' . date('D M d @ g:i A', $row['ran_at']) . '</td>';
   echo '<td>' . date('D M d @ g:i A',  tdCron::getNextOccurrence($row['mhdmd'])) . '</td>';
   echo "<td><a href='log/" . $row['log'] . "' target='_blank' >View Log</a></td>";
   echo '</tr>';

}

echo '</tbody>';
echo "</table>";
echo "</div>";

// ***** Popup Window ****************************************************

echo'<div class="sample_popup" id="popup" style="display: none;">

<div class="menu_form_header" id="popup_drag">
<img class="menu_form_exit" id="popup_exit" src="images/form_exit.png" alt="Close Form" />&nbsp;&nbsp;&nbsp;Comments
</div>

<div class="menu_form_body">
<form name="up" action="update.php" onsubmit="return validateForm()" method="post" >
<input type="hidden" name="' . $row['job'] . '" />
<table>
  <tr>
      <td><textarea class="field" onfucus="select();" name="comment" rows="8" cols="44"></textarea>
   </tr>
  <tr>
      <td align="right" ><br /><input class="btn" type="submit" name="submit" value="Submit" /></td>
  </tr>

</table>
</form>
</div>

</div>';

require_once('includes/footer.php');
?>

Javascript代码开始

// Copyright (C) 2005-2008 Ilya S. Lyubinskiy. All rights reserved.
// Technical support: http://www.php-development.ru/
//
// YOU MAY NOT
// (1) Remove or modify this copyright notice.
// (2) Re-distribute this code or any part of it.
//     Instead, you may link to the homepage of this code:
//     http://www.php-development.ru/javascripts/popup-window.php
//
// YOU MAY
// (1) Use this code on your website.
// (2) Use this code as part of another product.
//
// NO WARRANTY
// This code is provided "as is" without warranty of any kind.
// You expressly acknowledge and agree that use of this code is at your own risk.

// USAGE
//
// function popup_show(id, drag_id, exit_id, position, x, y, position_id)
//
// id          - id of a popup window;
// drag_id     - id of an element within popup window intended for dragging it
// exit_id     - id of an element within popup window intended for hiding it
// position    - positioning type:
//               "element", "element-right", "element-bottom", "mouse",
//               "screen-top-left", "screen-center", "screen-bottom-right"
// x, y        - offset
// position_id - id of an element relative to which popup window will be positioned


// ***** Variables *************************************************************

var popup_dragging = false;
var popup_target;
var popup_mouseX;
var popup_mouseY;
var popup_mouseposX;
var popup_mouseposY;
var popup_oldfunction;

// ***** popup_mousedown *******************************************************

function popup_mousedown(e)
{
  var ie = navigator.appName == "Microsoft Internet Explorer";

  popup_mouseposX = ie ? window.event.clientX : e.clientX;
  popup_mouseposY = ie ? window.event.clientY : e.clientY;
}


// ***** popup_mousedown_window ************************************************

function popup_mousedown_window(e)
{
  var ie = navigator.appName == "Microsoft Internet Explorer";

  if ( ie && window.event.button != 1) return;
  if (!ie && e.button            != 0) return;

  popup_dragging = true;
  popup_target   = this['target'];
  popup_mouseX   = ie ? window.event.clientX : e.clientX;
  popup_mouseY   = ie ? window.event.clientY : e.clientY;

  if (ie)
       popup_oldfunction = document.onselectstart;
  else popup_oldfunction = document.onmousedown;

  if (ie)
       document.onselectstart = new Function("return false;");
  else document.onmousedown   = new Function("return false;");
}


// ***** popup_mousemove *******************************************************

function popup_mousemove(e)
{
  var ie      = navigator.appName == "Microsoft Internet Explorer";
  var element = document.getElementById(popup_target);
  var mouseX  = ie ? window.event.clientX : e.clientX;
  var mouseY  = ie ? window.event.clientY : e.clientY;

  if (!popup_dragging) return;

  element.style.left = (element.offsetLeft+mouseX-popup_mouseX)+'px';
  element.style.top  = (element.offsetTop +mouseY-popup_mouseY)+'px';

  popup_mouseX = ie ? window.event.clientX : e.clientX;
  popup_mouseY = ie ? window.event.clientY : e.clientY;
}

// ***** popup_mouseup *********************************************************

function popup_mouseup(e)
{
  var ie      = navigator.appName == "Microsoft Internet Explorer";
  var element = document.getElementById(popup_target);

  if (!popup_dragging) return;

  popup_dragging = false;

  if (ie)
       document.onselectstart = popup_oldfunction;
  else document.onmousedown   = popup_oldfunction;
}

// ***** popup_exit ************************************************************

function popup_exit(e)
{
  var ie      = navigator.appName == "Microsoft Internet Explorer";
  var element = document.getElementById(popup_target);

  popup_mouseup(e);
  element.style.display = 'none';
}


// ***** popup_show ************************************************************

function popup_show(id, drag_id, exit_id, position, x, y, position_id)
{
  var element      = document.getElementById(id);
  var drag_element = document.getElementById(drag_id);
  var exit_element = document.getElementById(exit_id);

  var width        = window.innerWidth  ? window.innerWidth  : document.documentElement.clientWidth;
  var height       = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight;

  element.style.position = "absolute";
  element.style.display  = "block";

  if (position == "element" || position == "element-right" || position == "element-bottom")
  {
    var position_element = document.getElementById(position_id);

    for (var p = position_element; p; p = p.offsetParent)
      if (p.style.position != 'absolute')
      {
        x += p.offsetLeft;
        y += p.offsetTop;
      }

    if (position == "element-right" ) x += position_element.clientWidth;
    if (position == "element-bottom") y += position_element.clientHeight;

    element.style.left = x+'px';
    element.style.top  = y+'px';
  }

  if (position == "mouse")
  {
    element.style.left = (document.documentElement.scrollLeft+popup_mouseposX+x)+'px';
    element.style.top  = (document.documentElement.scrollTop +popup_mouseposY+y)+'px';
  }

  if (position == "screen-top-left")
  {
    element.style.left = (document.documentElement.scrollLeft+x)+'px';
    element.style.top  = (document.documentElement.scrollTop +y)+'px';
  }

  if (position == "screen-center")
  {
    element.style.left = (document.documentElement.scrollLeft+(width -element.clientWidth )/2+x)+'px';
    element.style.top  = (document.documentElement.scrollTop +(height-element.clientHeight)/2+y)+'px';
  }

  if (position == "screen-bottom-right")
  {
    element.style.left = (document.documentElement.scrollLeft+(width -element.clientWidth )  +x)+'px';
    element.style.top  = (document.documentElement.scrollTop +(height-element.clientHeight)  +y)+'px';
  }

  drag_element['target']   = id;
  drag_element.onmousedown = popup_mousedown_window;

  exit_element.onclick     = popup_exit;
}


// ***** Attach Events *********************************************************

if (navigator.appName == "Microsoft Internet Explorer")
     document.attachEvent   ('onmousedown', popup_mousedown);
else document.addEventListener('mousedown', popup_mousedown, false);

if (navigator.appName == "Microsoft Internet Explorer")
     document.attachEvent   ('onmousemove', popup_mousemove);
else document.addEventListener('mousemove', popup_mousemove, false);

if (navigator.appName == "Microsoft Internet Explorer")
     document.attachEvent   ('onmouseup', popup_mouseup);
else document.addEventListener('mouseup', popup_mouseup, false);

结束 JavaScript 代码

CSS 代码开始

div.sample_popup { z-index: 1; }

div.sample_popup div.menu_form_header
{
  border: 1px solid black;
  border-bottom: none;

  width: 400px;

  height:      20px;
  line-height: 19px;
  vertical-align: middle;

  background: url('../images/form_header.png') no-repeat;

  text-decoration: none;
  font-family: Times New Roman, Serif;
  font-weight: 900;
  font-size:  13px;
  color:  #FFFFFF; /*#206040;*/
  cursor:  default;
}

div.sample_popup div.menu_form_body
{
  width: 400px;
  height: 200px;
  border: 1px solid black;
  background: url('../images/form.png') no-repeat left bottom;
}

div.sample_popup img.menu_form_exit
{
  float:  right;
  margin: 4px 5px 0px 0px;
  cursor: pointer;
}

div.sample_popup table
{
  width: 100%;
  border-collapse: collapse;
}

div.sample_popup th
{
  width: 1%;
  padding: 0px 5px 1px 0px;

  text-align: left;

  font-family: Times New Roman, Serif;
  font-weight: 900;
  font-size:  13px;
  color:   #004060;
}

div.sample_popup td
{
  width: 99%;
  padding: 0px 0px 1px 0px;
}

div.sample_popup form
{
  margin:  0px;
  padding: 8px 10px 10px 10px;
}

div.sample_popup input.field
{
  width: 95%;
  border: 1px solid #808080;

  font-family: Verdana, Sans-Serif;
  font-size: 12px;
}

div.sample_popup input.btn
{
  margin-top: 2px;
  border: 1px solid #808080;

  background-color: #DDFFDD;

  font-family: Verdana, Sans-Serif;
  font-size: 11px;
}

CSS 代码结束

Answer 1

您使用的是 JS/CSS 弹出窗口，因此只需在调用 popup_show() 时传递 $row['job'] (假设您能够修改或重载该 JS 函数)，然后使用 Javascript 将其填充到弹出 HTML 的隐藏字段中。按照您现在的方式，您必须为结果集中的每一行复制一次 Popup HTML block 才能正常工作。