Creating PayPal Sandbox Test Account and Website Payments Pro Account<\/a><\/p>\nCreate Database Tables<\/h2>\n
To store product and payment information two tables needs to be created in the database. <\/p>\n
The following SQL creates a products<\/code> table in the MySQL database to store the product data.<\/p>\nCREATE<\/span> TABLE<\/span> `products`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `name`<\/span> varchar<\/span>(200<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `image`<\/span> varchar<\/span>(255<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `price`<\/span> float<\/span>(10<\/span>,2<\/span>) 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>\nThe following SQL creates a payments<\/code> table in the MySQL database to store the transaction data provided by PayPal.<\/p>\nCREATE<\/span> TABLE<\/span> `payments`<\/span> (\r\n `payment_id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `item_number`<\/span> varchar<\/span>(50<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `txn_id`<\/span> varchar<\/span>(50<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `payment_gross`<\/span> float<\/span>(10<\/span>,2<\/span>) NOT<\/span> NULL<\/span>,\r\n `currency_code`<\/span> varchar<\/span>(5<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `payment_status`<\/span> varchar<\/span>(20<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n PRIMARY KEY<\/span> (`payment_id`<\/span>)\r\n) ENGINE<\/span>=InnoDB<\/span> DEFAULT<\/span> CHARSET<\/span>=utf8 COLLATE<\/span>=utf8_unicode_ci;<\/pre>\nPayPal Settings and Database Configuration (config.php)<\/h2>\n
In the config.php<\/code> file, constant variables of the PayPal and database settings are defined.<\/p>\nPayPal Constants:<\/b><\/p>\n\n- PAYPAL_ID – Specify the email of the PayPal Business account.<\/li>\n
- PAYPAL_SANDBOX \u2013 Specify whether you use Sandbox environment (TRUE\/FALSE).<\/li>\n
- PAYPAL_RETURN_URL \u2013 Specify the URL where the buyer will be redirected after payment.<\/li>\n
- PAYPAL_CANCEL_URL \u2013 Specify the URL where the buyer will be redirected after payment cancellation.<\/li>\n
- PAYPAL_NOTIFY_URL – Specify the URL where the transaction data will be sent for verification through PayPal IPN.<\/li>\n
- PAYPAL_CURRENCY – Specify the currency code.<\/li>\n<\/ul>\n
Database Constants:<\/b><\/p>\n\n- DB_HOST \u2013 Specify the database host.<\/li>\n
- DB_USERNAME \u2013 Specify the database username.<\/li>\n
- DB_PASSWORD \u2013 Specify the database password.<\/li>\n
- DB_NAME \u2013 Specify the database name.<\/li>\n<\/ul>\n
<?php
<\/span>\/*
* PayPal and database configuration
*\/
\/\/ PayPal configuration
<\/span>define<\/span>(<\/span>'PAYPAL_ID'<\/span>, <\/span>'Insert_PayPal_Business_Email'<\/span>);
<\/span>define<\/span>(<\/span>'PAYPAL_SANDBOX'<\/span>, <\/span>TRUE<\/span>); <\/span>\/\/TRUE or FALSE
<\/span>define<\/span>(<\/span>'PAYPAL_RETURN_URL'<\/span>, <\/span>'http:\/\/www.example.com\/success.php'<\/span>);
<\/span>define<\/span>(<\/span>'PAYPAL_CANCEL_URL'<\/span>, <\/span>'http:\/\/www.example.com\/cancel.php'<\/span>);
<\/span>define<\/span>(<\/span>'PAYPAL_NOTIFY_URL'<\/span>, <\/span>'http:\/\/www.example.com\/ipn.php'<\/span>);
<\/span>define<\/span>(<\/span>'PAYPAL_CURRENCY'<\/span>, <\/span>'USD'<\/span>);
<\/span>\/\/ Database configuration
<\/span>define<\/span>(<\/span>'DB_HOST'<\/span>, <\/span>'MySQL_Database_Host'<\/span>);
<\/span>define<\/span>(<\/span>'DB_USERNAME'<\/span>, <\/span>'MySQL_Database_Username'<\/span>);
<\/span>define<\/span>(<\/span>'DB_PASSWORD'<\/span>, <\/span>'MySQL_Database_Password'<\/span>);
<\/span>define<\/span>(<\/span>'DB_NAME'<\/span>, <\/span>'MySQL_Database_Name'<\/span>);
<\/span>\/\/ Change not required
<\/span>define<\/span>(<\/span>'PAYPAL_URL'<\/span>, (<\/span>PAYPAL_SANDBOX <\/span>== <\/span>true<\/span>)?<\/span>\"https:\/\/www.sandbox.paypal.com\/cgi-bin\/webscr\"<\/span>:<\/span>\"https:\/\/www.paypal.com\/cgi-bin\/webscr\"<\/span>);<\/span><\/pre>\nDatabase Connection (dbConnect.php)<\/h2>\n
The dbConnect.php<\/code> file is used to connect the database using PHP and MySQL.<\/p>\n<?php
<\/span>\/\/ Connect with the database
<\/span>$db <\/span>= new <\/span>mysqli<\/span>(<\/span>DB_HOST<\/span>, <\/span>DB_USERNAME<\/span>, <\/span>DB_PASSWORD<\/span>, <\/span>DB_NAME<\/span>);
<\/span>\/\/ Display error if failed to connect
<\/span>if (<\/span>$db<\/span>-><\/span>connect_errno<\/span>) {
<\/span>printf<\/span>(<\/span>\"Connect failed: %s\\n\"<\/span>, <\/span>$db<\/span>-><\/span>connect_error<\/span>);
exit();
}<\/span><\/pre>\nProducts (index.php)<\/h2>\n
Initially, all the products are fetched from the database and listed on the webpage.<\/p>\n
\n- A PayPal Buy Now button is placed with each product.<\/li>\n
- To use PayPal standard payment gateway, you need to submit a form with some predefined PayPal HTML form field variable.<\/li>\n
- Follow the comment tags (<!– –><\/span>) to know about the form hidden fields.<\/li>\n<\/ul>\n
<?php
<\/span>\/\/ Include configuration file
<\/span>include_once <\/span>'config.php'<\/span>;
<\/span>\/\/ Include database connection file
<\/span>include_once <\/span>'dbConnect.php'<\/span>;
<\/span>?><\/span>\r\n\r\n<div<\/span>