How do I encode JSON in PHP via jQuery Ajax post data?

Question

I have an HTML form and send data to php file when hitting submit button.

$.ajax({
    url: \"text.php\",
    type: \"POST\",
    data: {
        amount: amount,         


        

Answer 1

Code example with JSON.stringify:

    
       
       
       
    

    
        

        

            Amount: 

            firstName: 

            lastName: 

            email: 

            
        
    

text.php

 $amount,
            "firstName"  => $firstName,
            "lastName"   => $lastName,
            "email"      => $email
        );
        echo json_encode($data);
    }
?>