Question

我希望有人可以帮助我，因为我在PHP代码中遇到了这个奇怪的错误。首先，这是代码的相关部分：

//STEP 1b - PREPROCESSING OF SUBMITTED FORM DATA (table level)
while($count_table++ != $num_tables && $submit != ""){

$table_show[$count_table] = mysql_escape_string($_POST[table_show_.$count_table]);
$ne_page[$count_table] = mysql_escape_string($_POST[ne_page_.$count_table]);

}

//STEP 2 - SUBMITTED?
if($submit!=""){

//The form has been submitted

//STEP 3 - VALIDATION

    //Reset counts
    $count_column = 0;
    $count_table = 0;

    //Check for empty fields
    while($count_table++ != $num_tables){ if($table_show[$count_table] != ""){ //While there are tables, validate only if they are in included in NexEdit

在我正在测试的场景中，if会返回false值。结果，它应该直接回到它前面的时间（我关闭时间，如果在同一点进一步）。

        if($ne_page[$count_table] == ""){
                $error = "You forgot to give a NexEdit name to one or more of the tables you want to include in NexEdit.";
        }

        echo "Debug";

正如预期的那样，这一点从未得到回应，因为PHP从未在第一时间进入过if。

                    while($db_field[++$count_column]){ //Stay inside the loop until we run out of db fields
            if($db_field[$count_column] == "" || $db_type[$count_column] == "" || $db_table[$count_column] == "" || $ne_name[$count_column] == "" || $ne_type[$count_column] == "" || $ne_order[$count_column] == ""){ //Check if all information is entered if the column is selected to be included in NexEdit
                $error = "You didn't enter all required information. Required fields are indicated with (*).";

这就是错误发生的地方：即使PHP不应该早先输入if（如调试回声所示），它仍然会在这里设置$ error的值。

            }
        }
    }}

//More code...

我错过了什么？我已经看了几个小时，甚至向朋友开发人员寻求帮助，但我找不到我做错了什么。

一个区块中的所有代码：

//STEP 1b - PREPROCESSING OF SUBMITTED FORM DATA (table level)
while($count_table++ != $num_tables && $submit != ""){

$table_show[$count_table] = mysql_escape_string($_POST[table_show_.$count_table]);
$ne_page[$count_table] = mysql_escape_string($_POST[ne_page_.$count_table]);

}

//STEP 2 - SUBMITTED?
if($submit!=""){

//The form has been submitted

//STEP 3 - VALIDATION

    //Reset counts
    $count_column = 0;
    $count_table = 0;

    //Check for empty fields
    while($count_table++ != $num_tables){ if($table_show[$count_table] != ""){ //While there are tables, validate only if they are in included in NexEdit

        if($ne_page[$count_table] == ""){
                $error = "You forgot to give a NexEdit name to one or more of the tables you want to include in NexEdit.";
        }

        echo "Debug";

                    while($db_field[++$count_column]){ //Stay inside the loop until we run out of db fields
            if($db_field[$count_column] == "" || $db_type[$count_column] == "" || $db_table[$count_column] == "" || $ne_name[$count_column] == "" || $ne_type[$count_column] == "" || $ne_order[$count_column] == ""){ //Check if all information is entered if the column is selected to be included in NexEdit
                $error = "You didn't enter all required information. Required fields are indicated with (*).";

            }
        }
    }}

//More code...

Answer 1

我的第一个想法是在某处不匹配的大括号。

你说“它应该直接回到它面前”。除非我弄错了，看起来循环在if语句之前关闭。

是否可以发布更完整/未完整的方法版本？它可能有助于诊断

Answer 2

在$error循环期间永远不会清除while的值。所以，你认为它被填充的地方实际上是while循环之前迭代之一的结果。

PHP似乎在false if中执行一行特定的代码

2 个答案: