Javascript確認（）函數無法正確傳遞參數

Question

我正在使用PHP和JavaScript，並且在處理JavaScript中的confirm()函數時遇到了問題。

說我有一個頁面add.php，首先我收到一些從另一個頁面傳遞的參數，我檢查它們是否有效。如果是的話，我只是將數據插入到數據庫並返回到另一個頁面，如果它們無效，彈出一個confirm()窗口，讓用戶選擇是否繼續。如果用戶仍選擇繼續，我希望頁面重新加載所有參數再次發送。但問題是，我第二次加載add.php時無法獲取參數。

此前我沒有使用window.onload函數和confirm()彈出，但一個< a href>鏈接，而不是一切工作正常（請參閱附加的代碼在最後）。但是，當我嘗試使用下面的代碼，相同的URL停止工作

echo "<script type=\"text/javascript\">"; 
echo "window.onload = function() { 
    var v = confirm(\"$name is not alive, do you want to add it into system?\"); 
    if (v) { 
     window.location.href= \"add.php?type=room&amp;name=$name&amp;area\" 
      + \"=$area&amp;description=$description&amp;\" 
      + \"capacity=$capacity&amp;confirm=Y\"; 
    } else { 
     window.location.href= \"admin.php?area=$area\"; 
    } 
}"; 
echo "</script>"; 

以下是以前的版本，而不是使用window.onload()，我用< a href="..." />鏈接，一切都在那個時候工作得很好。 get_form_var是functions.inc中的一個函數，它使用$_GET數組獲取參數。

<?php 
    require_once "functions.inc"; 
    // Get non-standard form variables 
    $name = get_form_var('name', 'string'); 
    $description = get_form_var('description', 'string'); 
    $capacity = get_form_var('capacity', 'string'); 
    $type = get_form_var('type', 'string'); 
    $confirm = get_form_var('confirm','string'); 

    $error = ''; 

    // First of all check that we've got an area or room name 
    if (!isset($name) || ($name === '')) 
    { 
     $error = "empty_name"; 
     $returl = "admin.php?area=$area" 
       . (!empty($error) ? "&error=$error" : ""); 
     header("Location: $returl"); 
    } 

    // we need to do different things depending on if its a room 
    // or an area 
    elseif ($type == "area") 
    { 
     $area = mrbsAddArea($name, $error); 
     $returl = "admin.php?area=$area" 
       . (!empty($error) ? "&error=$error" : ""); 
     header("Location: $returl"); 
    } 

    elseif ($type == "room") 
    { 
     if (isset($confirm)){ 
      $dca_osi = getOsiVersion($name); 
      $room = mrbsAddRoom(
       $name, 
       $area, 
       $error, 
       $description, 
       $capacity, 
       $dca_osi, 
       1 
      ); 
      $returl = "admin.php?area=$area" 
        . (!empty($error) ? "&error=$error" : ""); 
      header("Location:$returl"); 
     } 
     else { 
      $dca_status= pingAddress($name); 
      $dca_osi = getOsiVersion($name); 
      if($dca_status == 0){ 
       $room = mrbsAddRoom(
        $name, 
        $area, 
        $error, 
        $description, 
        $capacity, 
        $dca_osi, 
        0 
       ); 
       $returl = "admin.php?area=$area" 
         . (!empty($error) ? "&error=$error" : ""); 
       header("Location:$returl"); 
      } 
      else { 
       print_header(
        $day, 
        $month, 
        $year, 
        $area, 
        isset($room) ? $room : "" 
       ); 
       echo "<div id=\"del_room_confirm\">\n"; 
       echo "<p>\n"; 
       echo "$name is not alive, are you sure to add it into system?"; 
       echo "\n</p>\n"; 
       echo "<div id=\"del_room_confirm_links\">\n"; 
       echo "<a href=\"add.php?type=room&amp;name" 
        . "=$name&amp;area=$area&amp;description" 
        . "=$description&amp;capacity=$capacity&amp;confirm" 
        . "=Y\"><span id=\"del_yes\">" 
        . get_vocab("YES") . "!</span></a>\n"; 
       echo "<a href=\"admin.php?area=$area\"><span id=\"del_no\">" 
        . get_vocab("NO") . "!</span></a>\n"; 
       echo "</div>\n"; 
       echo "</div>\n"; 
      } 
     } 
    } 

    function pingAddress($host) 
    { 
     $pingresult = exec("/bin/ping -c 1 $host", $outcome, $status); 
     if ($status==0) { 
      return $status; 
     } 
     else { 
      return 1; 
     } 
    } 

    function getOsiVersion($host) 
    { 
     $community = 'public'; 
     $oid = '.1.3.6.1.4.1.1139.23.1.1.2.4'; 
     $sysdesc = exec("snmpwalk -v 2c -c $community $host $oid"); 
     $start = strpos($sysdesc, '"'); 
     if ($start!==false) { 
      $sysdesc = substr($sysdesc, $start+1,$sysdesc.length-1); 
      return $sysdesc; 
     } 
     else { 
      return "not available"; 
     } 
    } 

Answer 1

您試過location.reload（）javascript調用嗎？

Answer 2

我已經解決了這個問題，只需簡單地使用「&」而不是「& amp;」在URL鏈接...它現在正常工作...