checking returned data from PHP script through jquery

Question

I have written a php script

cch.php

$stmtcheck = $mysqli->prepare("SELECT id FROM members WHERE email=? AND unlock_code=?");
$stmtcheck->bind_param("si", $_SESSION['unlockemail'], $_POST['code']);
$stmtcheck->execute();
$stmtcheck->bind_result($id);
$stmtcheck->fetch();
$stmtcheck->close();

And jquery for submitting form is

recover.php

$("#formUnlock").submit(function(e)
{
   e.preventDefault();

   $.ajax(
   {
        url: '../scripts/cch.php',
        method: 'POST',
        data: $(#formUnlock).serialize(),
        success: function()
        {
        alert("unlocked");
        }
   }); 
});

Now what I want to check whether $id has some value or not! How would I fetch the $id variable to my main script?

By main script do you mean the javascript portion?

filype
– filype

2016-11-13 09:55:12 +00:00
Commented Nov 13, 2016 at 9:55 — filype
– filype, Commented Nov 13, 2016 at 9:55
echo !empty($id)? 'y' : 'n'

u_mulder
– u_mulder

2016-11-13 09:56:32 +00:00
Commented Nov 13, 2016 at 9:56 — u_mulder
– u_mulder, Commented Nov 13, 2016 at 9:56

Ima · Accepted Answer · 2016-11-13 10:02:14Z

1

In cch.php, if you want to pass only an id to the javascript, you can print id

echo $id;

What ever data is received on ajax response will be passed as parameter to the success callback function. Either you have to execute the success actions inside the succes call back OR You have to write a function to be executed on ajax success and call that function and pass the params

$("#formUnlock").submit(function(e)
{
   e.preventDefault();

   $.ajax(
   {
        url: '../scripts/cch.php',
        method: 'POST',
        data: $(#formUnlock).serialize(),
        success: function(responseData)
        {
            if (responseData == '' )
            {
                 alert("Sorry failed");
            }
            else
            {
                alert("Success");
            }
        }
   }); 
});

answered Nov 13, 2016 at 10:02

Ima

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1 Comment

Ima Over a year ago

success: function(responseData) In this line responseData can be any variable. This variable wii be assigned with any response from server.

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