Let me explain the simple method of Integration of Stripe Payment .

1. Put the Stripe.js in your footer or head tag where all the JavaScript reside

<script src="https://js.stripe.com/v3/"></script>

2. Put some html code at website page where you want to show Payment button

<form id="payment-form"><br />
<div id="card-element"><!--Stripe.js injects the Card Element--></div><br />
<button id="submit"></button></p>

<p><div class="spinner hidden" id="spinner"> </div><br />
<button id="submit"><span id="button-text">Pay</span></button></p>

 

 </form> 

3. initialize the stripe with your publishable API keys .

 var stripe = Stripe("pk_test_TYooMQauvdEDq54NiTphI7jx"); 

4. put the server code for stripe API calling

install the stripe payment library for PHP

 composer require stripe/stripe-php

intialize stripe payment api

\Stripe\Stripe::setApiKey('api key goes here');

call stripe api

  stripe

    .confirmCardPayment(clientSecret, {

      payment_method: {

        card: card

      }

    })

provide response to ajax call

  $output = [

    'clientSecret' => $paymentIntent->client_secret,

  ];

  echo json_encode($output);

Thats it !