Question

函数T_CONTINUE无法运行，并给出未定义索引的错误：第82行上的city1以及city 2和city3。其余if语句确实可以验证用户输入。如果用户忘记输入表格的一部分，则首先显示单个错误消息，然后显示一般errMessage，但不显示。

用户输入所有正确的信息并继续== true之后，它应该回发他们在表单中选择的内容。

 <HTML> 
    <head>
    <h1>Weather Wizards Registration Verification Form</h1>
<hr>
<br>
  <?php //start PHP codeing
    $name=
    $parentName=
    $email=
    $phone=
    $member=
    $city1="";
    $city2="";
    $city3="";
    $nameErr="";
    $parentNameErr="";
    $parentEmailErr="";
    $parentPhoneErr="";
    $memberErr="";
    $errMessage ="";
    $continue=true;

    if ($_SERVER["REQUEST_METHOD"] == "POST"){
    $name = test_input($_POST["name"]);
    $parentName = test_input($_POST["parentName"]);
    $email = test_input($_POST["email"]);
    $phone = test_input($_POST["phone"]);
}
function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
}

if ($_SERVER["REQUEST_METHOD"] == "POST") {  //Name
  if (empty($_POST["name"])) {
    $nameErr = "You forgot to enter your name.";
    $continue==false;
    echo $nameErr;

  } else {
    $name = test_input($_POST["name"]);
  }
  if (empty($_POST["parentName"])) { //Parent Name
    $parentNameErr = "You forgot to enter your parent or guardian’s name";
    echo $parentNameErr;
    $continue==false;
  }else {
    $parentNameErr = test_input($_POST["parentName"]);
  }
  if (empty($_POST["email"])) {  //Email
    $parentEmailErr = "You forgot to enter your parent or guardian’s email.";
    echo $parentEmailErr;
    $continue==false;
  }else {
    $parentEmailErr = test_input($_POST["email"]);
  }
  if (empty($_POST["phone"])) { //phone number
    $parentPhoneErr = "You forgot to enter your parent or guardian’s phone";
    echo $parentPhoneErr;
    $continue==false;
  }else {
    $parentNameErr = test_input($_POST["phone"]);
  }
   if (empty($_POST["member"])) { //membership
    $memberErr = "You forgot to enter your membership status.";
    echo $memberErr;
    $continue==false;
  }else {
    $memberErr = test_input($_POST["member"]);
  }
}
T_CONTINUE();
// if ($continue) { T_CONTINUE(); }

    function T_CONTINUE(){
  if($continue = false){
    $errMessage = "We need your name and your parent or guradians name,email,phone and your membership status to send information about our workshop. Hit the back button on the browser to try again";
    echo $errMessage;
  }else if ($continue =true){
if( $_POST["city1"]){
    // if Charleston is selected:
    echo"You are nearest to our Charleston SC location, the Holy City! Go River Dogs!";
}else if( $_POST["city2"]){
    // if per Summerville is selected:
 echo"You are nearest to our Summerville SC location, the Birthplace of Sweet Tea! Refreshing!";
}else if( $_POST["city3"]){
    // if per Mt. Pleasant is selected:
 echo"You are nearest to our Mt. Pleasant, SC location that has a historical and beachy vibe!";
}
}
}

  ?> 
</body>
<style type="text/css">
html{
    background-color: lightgray;
}
</style>
</HTML>

Answer 1

所以您的财产有几个问题。

在T_CONTINUE函数中，您将false分配给$continue。您正在做分配而不是比较。 =与==
要访问全局变量$continue，您需要使用$GLOBALS['continue']之类的全局数组。
在开发过程中，打开对ALL的错误报告。使调试更加容易。在这种情况下不会有太大帮助，因为您正在这种情况下进行作业，并且从技术上讲这不是违法的。

用户在表单上输入数据后，php函数将无法运行

1 个答案: