Question

發送響應回頁面我想知道這是可能發送迴應通過使用一些if/else響應我們從服務器獲得成功在$ .ajax ..

AJAX

$.ajax({ 

    url : "request/register.php", 
    type : "POST", 
    data : 'firstName='+firstName + '&lastName='+lastName + '&userName='+userName + '&email='+email + '&password='+password + '&con_password='+con_password, 
    dataType : "text", 
    beforeSend : function(http){ 
     $('#reg').val("Submitting...."); 
    }, 
    success : function(response,status,http){ 
     var text = response; 
     alert(text); 
     if(text != "<span class=\"error\" data-icon ='&#xea0f;'>Empty Fields</span>"){ 
       alert("Done");    
     }else{ 
       alert("oOps") 
     } 

    }, 
    error : function(http,status,error){ 
     alert('server error'); 
    } 

}) 

registeration.php

//creating a variable for error messages 
$error = ""; 
//creating a variable for success messages 
$success = ""; 
//form validation 
if($_SERVER['REQUEST_METHOD'] == "POST"){ 


    $firstName = trim(filter_input(INPUT_POST, 'firstName' ,FILTER_SANITIZE_STRING)); 
    $lastName  = trim(filter_input(INPUT_POST, 'lastName'  ,FILTER_SANITIZE_STRING)); 
    $userName  = trim(filter_input(INPUT_POST, 'userName'  ,FILTER_SANITIZE_STRING)); 
    $email  = trim(filter_input(INPUT_POST, 'email'  ,FILTER_SANITIZE_EMAIL)); 
    $password  = trim(filter_input(INPUT_POST, 'password'  ,FILTER_SANITIZE_STRING)); 
    $confirm_pass = trim(filter_input(INPUT_POST, 'con_password' ,FILTER_SANITIZE_STRING)); 


    //checking for empty feilds 
    if($firstName == "" || $lastName == "" || $userName == "" || $email == "" || $password == "" || $confirm_pass == ""){ 
     $error = "Empty Fields"; 
    } 

    //checking username length 

    if(empty($error) && strlen($userName)<=5){ 
     $error = "Username must be greater than 5 characters"; 
    } 

    //checking for username existence 

    if(empty($error) && user_exist($userName)){ 
     $error = "Username already exist"; 
    } 

    //email validation 
    if(empty($error) && !filter_var($email,FILTER_VALIDATE_EMAIL)){ 
     print_r($_POST); 
     $error = "Invalid Email address"; 
    } 

    //checking for email existence 

    if(empty($error) && email_exist($email)){ 
     $error = "Email already exist"; 
    } 

    //checking password length 
    if(empty($error) && strlen($password)<=8){ 
     $error = "Password must be greater than 8 characters"; 
    } 

    //matching confirm password 
    if(empty($error) && $password !== $confirm_pass){ 
     $error = "Password not match"; 
    } 

    if(empty($error)){ 
     if(user_registration($firstName,$lastName,$userName,$email,md5($password))){ 
     $success = "Registered Suceessfully"; 
     }else{ 
     $error = "Something went wrong"; 
     } 
    } 

} 

    if(!empty($error)){ 
     echo "<span class=\"error\" data-icon ='&#xea0f;'>".$error."</span>"; 
    } 

    if (empty($error) && !empty($success)) { 
    echo "<span class=\"success\" data-icon ='&#xea10;'>".$success."</span>"; 
    } 

如果反應是一樣的東西，比我想設置輸入[類型= 「文本」]值應該是相同的哪些用戶類型和輸入[類型=「密碼」 ]應該是空白&在其他情況下，如果響應是類似的東西，我想所有的輸入域都是空的..

Answer 1

是的，這是可能的。但由於機體可能會在更改超時，因此最好在HTTP/1.1 Status Codes上執行if/else邏輯。

例如;

在你的錯誤響應，只需使用http_response_code()

http_response_code(400); 

而在你的成功響應返回錯誤代碼400 Bad Request，簡單地返回一個201 Created

http_response_code(201); 

現在，在你的jQuery，你可以只需看看退貨狀態代碼併爲最終用戶做適當的事情即可。

//[...] 
success : function(response,status,http) { 
    if(http.status === 201) { 
     alert("User created"); 
    } else { 
     //Assume there was an error 
     //Do some error logging for the end-user 
     alert("Could not create the user"); 
    } 
}