重定向到PHP页面，如果字段为空(redirect to php page if fields ar

我想，当用户提交表单，不带任何参数，也是我想返回的错误信息重定向到具有形式的页面，我如何从控制器重定向到形式？

<form action="controllers/Customer.controller.php" method="post">

    <label for="cellPhoneNo">cell phone number</label>
    <input type="text" name="cellPhoneNo" class="textField"/>

    <label for="telephone">telephone number</label>
    <input type="text" name="telephone" class="textField"/>

    <input type="submit" name="searchCustomer" value="بحث"/>
</form>

和这里的Customer.controller.php页

  if(trim($_POST['cellPhoneNo']) == "" && trim($_POST['telephone']) ==""){

  //include('Location:index.php'); //what I supposed to write here?
   echo "empty";
}

Answer 1:

不知道你的框架结构，你可以使用PHP的头

if(trim($_POST['cellPhoneNo']) == "" && trim($_POST['telephone']) ==""){

   $_SESSION['error'] = 'Fields cannot be empty!';
   header('Location: myformlocation.php');
   exit(); 
}

而就在你上面的表格：

<?php if(isset($_SESSION['error'] )) : ?>

<div class="error"><?php echo $_SESSION['error'];?></div>

<?php 
unset($_SESSION['error']); 
endif; ?>


<form action="controllers/Customer.controller.php" method="post">

所以，当表单提交，如果字段为空，表单页面重新加载，并且由于$ _SESSION错误现在设置，它就会显示出来。 你可能想使一个功能出$ _SESSION [“错误”]显示，这样你就不会在每个窗体编写所有的代码。

评论后编辑：
嗯，我真的不知道要明白你的问题，你可以使用$ _GET：

header("Location: ../index.php?page=customerSearch"); 

你在索引检索$pageToInclude = $_GET['page']; //正确消毒

或使用

$_SESSION['pageToInclude'] = 'CustomerSearch'; 
$_SESSION['error'] = 'Fields cannot be empty!';
header('Location: myformlocation.php');
....

在指数使用

$pageToInclude = isset($_SESSION['pageToInclude']) ? $_SESSION['pageToInclude'] : 'someotherdefaultpage';

Answer 2:

<?php
session_start();

if(isset($_POST)){
    $cont=true;
    //cellPhoneNo
    if(!isset($_POST['cellPhoneNo']) || strlen($_POST['cellPhoneNo'])< 13){ //13 being the telephone count
        $cont=false;
        $_SESSION['error']['cellPhoneNo']='Cell phone is required & must be 13 in length';
        header('Location: ./index.php');
        die();
    }
    //telephone
    if(!isset($_POST['telephone']) || strlen($_POST['telephone'])< 13){ //13 being the telephone count
        $cont=false;
        $_SESSION['error']['telephone']='Telephone is required & must be 13 in length';
        header('Location: ./index.php');
        die();
    }

    if($cont===true){
        //continue to submit user form

    }else{
        header('Location: ./index.php');
        die();
    }
}else{
    header('Location: ./index.php');
}
?>

文章来源: redirect to php page if fields are empty