重定向到php頁面如果字段爲空

Question

我想重定向到具有表單的頁面，當用戶提交表單時沒有任何參數，我也想返回一個錯誤信息，我該如何從控制器重定向到表單？

<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> 

和這裏的Customer.controller.php頁面

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

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

Answer 1

不知道你的框架結構，你可以使用PHP的header

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

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

，略高於表單：

<?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"> 

因此，每當表單提交時，如果字段爲空，表單頁面將被重新加載，並且由於現在設置了$ _SESSION錯誤，因此將顯示它。您可能想從$ _SESSION ['error']顯示中創建一個函數，因此您不會在每個表單中編寫所有代碼。評論後

編輯：
嗯，我真的不知道要明白你的問題，你可以使用$ _GET：

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

和你 $pageToInclude = $_GET['page'];檢索索引//適當處理

或使用

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

和指數使用

$pageToInclude = isset($_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'); 
} 
?>