提交表單提交後，php變量未設置爲期望值

//get var of posted info so user does not 
//have to reinsert if if validation = false 
if(!isset($_POST['FactionChanges'])){ $faction_name = ''; } 
else { $faction_name = "".$_POST['factionname'].""; } 
//without form submit, num_errors = 0 
if(!isset($_POST['FactionChanges'])){ $num_errors = 0; } 
//without form submit, success = 0 
if(!isset($_POST['FactionChanges'])){ $success = 0; } 


//error handling section [upon form submit] 
if(isset($_POST['FactionChanges'])){ 

//deal with individual form section posts 
//-->Faction Name 
if(isset($_POST['factionname'])){ 

    //set var for error 
    //array to use here 
    $errors = array(); 

    $unsani_faction_name = $_POST['factionname']; 
    $new_faction_name = str_replace(",", "", $unsani_faction_name); 
    $faction_name = mysql_real_escape_string($new_faction_name); 
    $faction_name = preg_replace('/\s\s+/', ' ', $faction_name); 
    $faction_name = stripslashes($faction_name);//strips slashes from name 
    //remove special chars except: "& $ £^- ()" 
    $faction_name = preg_replace('/[^a-z0-9\s£&$\^\(\)-]/i', '', $faction_name); 
    $string_length = strlen($faction_name); 
    if($string_length < 3 || $string_length > 20){ 
    $errors[] = 'Name: [between 3-20 characters]'; } 
    else{ 
    $sql = mysql_query("SELECT * FROM ".TBL_TBL_FACTIONS." 
    WHERE f_name='$faction_name'"); 
    $num_rows = mysql_num_rows($sql); 
    if ($num_rows > 0){ $errors[] = 'Name: [same faction name in existance]'; } 
    else { mysql_query("UPDATE ".TBL_FACTIONS." SET f_name='$faction_name' 
    WHERE f_id=$userfaction_id"); 
    header("Location: ".$page_name."?section=actions"); 
    //$success = 1; [DOES NOT work here] 
    } 
}//else 
}//if post factionname 

$num_errors = count($errors); 
if($num_errors === NULL){ $success = 1; } 


} 
//$success = 1; [works here] 



if($num_errors > 0){ echo '<p class="error"><strong>Error:</strong> 
The form could not be submitted because there are errors present</p>'; } 

//add something here to only display sucess only if form is success 
if($success == 1){ echo '<p class="success"><strong>Success:</strong> 
Your faction changes have been made</p>'; }

當提交成功的表單輸入時，無法顯示成功框？我自己做了一些調試，並且插入了我嘗試插入成功變量的位置。我真的很難過這個。提交表單提交後，php變量未設置爲期望值

來源

2010-08-18 Callum Johnson

看行緊接您//$success = 1; [DOES NOT WORK HERE]

header("Location: ".$page_name."?section=actions");

你將用戶重定向到另一個頁面。當然，您的腳本將繼續執行，但在您離開的頁面上設置成功並不會執行任何操作。

是否在您的重定向查詢字符串中添加&success=1？

來源

2010-08-18 23:41:41 jasonbar

謝謝。如果我想添加更多的表單更新，我將不得不改變每個人的整體成功的價值？ – 2010-08-18 23:48:32

如何阻止用戶輸入：faction.php？section = actions＆success = 1並顯示綠色成功框？ – 2010-08-18 23:49:10

@Callum Johnson，不知道我理解你的第一條評論，但至於你的第二條評論：你不是，真的。你可以用會話做一些魔術或檢查引用者（這是不可信的）。 – jasonbar 2010-08-18 23:54:08

它看起來像問題是與這些行：

$num_errors = count($errors); 
if($num_errors === NULL){ $success = 1; }

由於計數永遠不會返回NULL，$成功永遠不會爲真。如果您將其更改爲：

$num_errors = count($errors); 
if($num_errors == 0){ $success = 1; }

那麼它應該工作。

來源

2010-08-18 23:46:43

它仍然不起作用？ – 2010-08-18 23:50:28

提交表單提交後，php變量未設置爲期望值

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