Shopping cart with payment gateway<\/b> is a must-have functionality for an e-commerce website. The payment gateway allows the buyers to make payment online at the time of checkout. PayPal standard checkout is one of the easiest option to integrate payment gateway in the web application. A shopping cart helps users to select multiple products, and PayPal allows users to checkout with credit\/debit card payment.<\/p>\n
PHP shopping cart with PayPal<\/b> makes e-commerce web applications more user-friendly and feature-rich. In this tutorial, we will show you how to build shopping cart with payment gateway in PHP. This example shopping cart system uses PHP SESSION to integrate cart functionality and PayPal for online credit\/debit card payment.<\/p>\n
The following functionality will be implemented in the PHP Shopping Cart<\/b> system.<\/p>\n To get started with the PayPal REST API, you need to create a developer account on the PayPal Developer Dashboard<\/a>.<\/p>\n PayPal provides two environments, Sandbox and Live. Sandbox environment allows developers to test the PayPal checkout process before making it Live for production usage. You can create sandbox Business and Personal accounts from the Sandbox Accounts<\/a> section.<\/p>\n In the PayPal Developer Dashboard, you can switch between the Sandbox and Live environment from the toggle button placed at the top-right corner.<\/p>\n Create Sandbox Accounts:<\/b><\/p>\n Create REST API App:<\/b> After the App creation, the Client ID<\/b> and Secret<\/b> will be generated.<\/p>\n Live REST API Credentials:<\/b> We suggest you follow the steps mentioned in our PHP Shopping Cart<\/a> and PayPal Standard Checkout<\/a> integration tutorials to initial setup.<\/p>\n Before getting started, take a look at the file structure of the PHP shopping cart with PayPal<\/b> script.<\/p>\n Some tables (products, customers, orders, order_items, and transactions) are required in the database to store product, order, and payment details.<\/p>\n The following SQL creates a The following SQL creates a The following SQL creates an The following SQL creates an \n
PayPal REST API Credentials<\/h2>\n
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\nIn the Apps & Credentials<\/u> section, create a new REST API App with Type: Merchant<\/u>.<\/p>\n\n
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\nAt the top right corner, toggle the switch to Live. Then navigate to the Apps & Credentials<\/u> section.<\/p>\n\n
Getting Started<\/h2>\n
php_shopping_cart_with_paypal\/<\/span>\r\n\u251c\u2500\u2500 index.php\r\n\u251c\u2500\u2500 view-cart.php\r\n\u251c\u2500\u2500 checkout.php\r\n\u251c\u2500\u2500 order-status.php\r\n\u251c\u2500\u2500 config.php\r\n\u251c\u2500\u2500 dbConnect.php\r\n\u251c\u2500\u2500 cartAction.php\r\n\u251c\u2500\u2500 Cart.class.php\r\n\u251c\u2500\u2500 paypal_checkout_validate.php\r\n\u251c\u2500\u2500 PaypalCheckout.class.php\r\n\u251c\u2500\u2500 js\/<\/span>\r\n| \u2514\u2500\u2500 jquery.min.js\r\n\u251c\u2500\u2500 css\/<\/span>\r\n| \u251c\u2500\u2500 bootstrap.min.css\r\n| \u2514\u2500\u2500 style.css\r\n\u2514\u2500\u2500 images\/<\/span>\r\n<\/pre>\nCreate Database Tables<\/h2>\n
products<\/code> table to store the product information in the MySQL database.<\/p>\nCREATE<\/span> TABLE<\/span> `products`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `image`<\/span> varchar<\/span>(255<\/span>) NOT<\/span> NULL<\/span>,\r\n `name`<\/span> varchar<\/span>(200<\/span>) NOT<\/span> NULL<\/span>,\r\n `description`<\/span> text<\/span> NOT<\/span> NULL<\/span>,\r\n `price`<\/span> float<\/span>(10<\/span>,2<\/span>) NOT<\/span> NULL<\/span>,\r\n `created`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `modified`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `status`<\/span> tinyint(1<\/span>) NOT<\/span> NULL<\/span> DEFAULT<\/span> 1<\/span> COMMENT<\/span> '1=Active | 0=Inactive'<\/span>,\r\n PRIMARY KEY<\/span> (`id`<\/span>)\r\n) ENGINE<\/span>=InnoDB<\/span> DEFAULT<\/span> CHARSET<\/span>=utf8 COLLATE<\/span>=utf8_unicode_ci;<\/pre>\ncustomers<\/code> table to store the user contact information in the MySQL database.<\/p>\nCREATE<\/span> TABLE<\/span> `customers`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `first_name`<\/span> varchar<\/span>(25<\/span>) NOT<\/span> NULL<\/span>,\r\n `last_name`<\/span> varchar<\/span>(25<\/span>) NOT<\/span> NULL<\/span>,\r\n `email`<\/span> varchar<\/span>(50<\/span>) NOT<\/span> NULL<\/span>,\r\n `phone`<\/span> varchar<\/span>(15<\/span>) NOT<\/span> NULL<\/span>,\r\n `address`<\/span> text<\/span> NOT<\/span> NULL<\/span>,\r\n `created`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `modified`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `status`<\/span> tinyint(1<\/span>) NOT<\/span> NULL<\/span> DEFAULT<\/span> 1<\/span> COMMENT<\/span> '1=Active | 0=Inactive'<\/span>,\r\n PRIMARY KEY<\/span> (`id`<\/span>)\r\n) ENGINE<\/span>=InnoDB<\/span> DEFAULT<\/span> CHARSET<\/span>=utf8 COLLATE<\/span>=utf8_unicode_ci;<\/pre>\norders<\/code> table in the MySQL database to store the order info that submitted by the customer. The customer_id<\/code> will be a FOREIGN KEY which is associated with the customers table.<\/p>\nCREATE<\/span> TABLE<\/span> `orders`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `customer_id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span>,\r\n `grand_total`<\/span> float<\/span>(10<\/span>,2<\/span>) NOT<\/span> NULL<\/span>,\r\n `payment_status`<\/span> tinyint(1<\/span>) NOT<\/span> NULL<\/span> DEFAULT<\/span> 0<\/span> COMMENT<\/span> '1=Paid | 0=Pending'<\/span>,\r\n `created`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `status`<\/span> enum('Pending'<\/span>,'Completed'<\/span>,'Cancelled'<\/span>) NOT<\/span> NULL<\/span> DEFAULT<\/span> 'Pending'<\/span>,\r\n PRIMARY KEY<\/span> (`id`<\/span>),\r\n KEY<\/span> `customer_id`<\/span> (`customer_id`<\/span>),\r\n CONSTRAINT<\/span> `orders_ibfk_1`<\/span> FOREIGN KEY<\/span> (`customer_id`<\/span>) REFERENCES<\/span> `customers`<\/span> (`id`<\/span>) ON<\/span> DELETE<\/span> CASCADE<\/span> ON<\/span> UPDATE<\/span> NO<\/span> ACTION<\/span>\r\n) ENGINE<\/span>=InnoDB<\/span> DEFAULT<\/span> CHARSET<\/span>=utf8 COLLATE<\/span>=utf8_unicode_ci;<\/pre>\norder_items<\/code> table to store the items of each order in the MySQL database. The order_id<\/code> will be a FOREIGN KEY which is associated with the orders table.<\/p>\nCREATE<\/span> TABLE<\/span> `order_items`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `order_id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span>,\r\n `product_id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span>,\r\n `quantity`<\/span> int<\/span>(5<\/span>) NOT<\/span> NULL<\/span>,\r\n PRIMARY KEY<\/span> (`id`<\/span>),\r\n KEY<\/span> `order_id`<\/span> (`order_id`<\/span>),\r\n CONSTRAINT<\/span> `order_items_ibfk_1`<\/span> FOREIGN KEY<\/span> (`order_id`<\/span>) REFERENCES<\/span> `orders`<\/span> (