![\"create-paypal-sandbox-buyer-business-account-codeigniter-codexworld\"](\"https:\/\/www.codexworld.com\/wp-content\/uploads\/2018\/07\/create-paypal-sandbox-buyer-business-account-codexworld.png\")
<\/div>\n<\/li>\n<\/ul>\n
Before getting started to integrate PayPal payment gateway in CodeIgniter<\/b>, take a look at the file structure.<\/p>\ncodeigniter_paypal_integration\/<\/span>\r\n\u251c\u2500\u2500 application\/<\/span>\r\n\u2502 \u251c\u2500\u2500 config\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 paypal.php\r\n\u2502 \u251c\u2500\u2500 controllers\/<\/span>\r\n\u2502 \u2502 \u251c\u2500\u2500 Products.php\r\n\u2502 \u2502 \u2514\u2500\u2500 Paypal.php\r\n\u2502 \u251c\u2500\u2500 libraries\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 Paypal_lib.php\r\n\u2502 \u251c\u2500\u2500 models\/<\/span>\r\n\u2502 \u2502 \u251c\u2500\u2500 Product.php\r\n\u2502 \u2502 \u2514\u2500\u2500 Payment.php\r\n\u2502 \u251c\u2500\u2500 views\/<\/span>\r\n\u2502 \u2502 \u251c\u2500\u2500 products\/<\/span>\r\n\u2502 \u2502 \u2502 \u2514\u2500\u2500 index.php\r\n\u2502 \u2502 \u2514\u2500\u2500 paypal\/<\/span>\r\n\u2502 \u2502 \u251c\u2500\u2500 success.php\r\n\u2502 \u2502 \u2514\u2500\u2500 cancel.php\r\n\u2514\u2500\u2500 assets\/<\/span>\r\n \u2514\u2500\u2500 css\/<\/span>\r\n \u251c\u2500\u2500 bootstrap.min.css\r\n \u2514\u2500\u2500 style.css\r\n<\/pre>\nCreate Database Tables<\/h2>\n
To store product and payment information two tables are required in the database. <\/p>\n
The following SQL creates a products<\/code> table with some basic fields 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 `name`<\/span> varchar<\/span>(255<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `image`<\/span> varchar<\/span>(200<\/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 `currency`<\/span> varchar<\/span>(10<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span> DEFAULT<\/span> 'USD'<\/span>,\r\n `status`<\/span> enum('1'<\/span>,'0'<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span> DEFAULT<\/span> '1'<\/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 information provided by PayPal.<\/p>\nCREATE<\/span> TABLE<\/span> `payments`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `product_id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span>,\r\n `user_id`<\/span> int<\/span>(11<\/span>) DEFAULT<\/span> NULL<\/span>,\r\n `txn_id`<\/span> varchar<\/span>(100<\/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 `payer_name`<\/span> varchar<\/span>(50<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `payer_email`<\/span> varchar<\/span>(100<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `status`<\/span> varchar<\/span>(20<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/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>\nConfig<\/h2>\n
paypal.php<\/code><\/b>
\nThe configuration variables of the PayPal library are defined in this file.<\/p>\n\n- Specify the PayPal environment (
sandbox<\/code>), business email (business<\/code>), and currency code (paypal_lib_currency_code<\/code>).<\/li>\n<\/ul>\n<?php defined<\/span>(<\/span>'BASEPATH'<\/span>) OR exit(<\/span>'No direct script access allowed'<\/span>);
<\/span>\/*
| -------------------------------------------------------------------
| PayPal API Configuration
| -------------------------------------------------------------------
|
| You will get the API keys from Developers panel of the PayPal account
| Login to PayPal account (https:\/\/developer.paypal.com\/)
| and navigate to the SANDBOX \u00bb Accounts page
| Remember to switch to your live business email in production!
|
| sandbox boolean PayPal environment, TRUE for Sandbox and FALSE for live
| business string PayPal business email
| paypal_lib_currency_code string Currency code.
*\/
<\/span>$config<\/span>[<\/span>'sandbox'<\/span>] = <\/span>TRUE<\/span>; <\/span>\/\/ FALSE for live environment
<\/span>$config<\/span>[<\/span>'business'<\/span>] = <\/span>'Your_PayPal_Email'<\/span>;
<\/span>$config<\/span>[<\/span>'paypal_lib_currency_code'<\/span>] = <\/span>'USD'<\/span>;
<\/span>\/\/ Where is the button located at? (optional)
<\/span>$config<\/span>[<\/span>'paypal_lib_button_path'<\/span>] = <\/span>'assets\/images\/'<\/span>;
<\/span>\/\/ If (and where) to log ipn response in a file
<\/span>$config<\/span>[<\/span>'paypal_lib_ipn_log'<\/span>] = <\/span>FALSE<\/span>;
<\/span>$config<\/span>[<\/span>'paypal_lib_ipn_log_file'<\/span>] = <\/span>BASEPATH <\/span>. <\/span>'logs\/paypal_ipn.log'<\/span>;<\/span><\/pre>\nLibrary<\/h2>\n
PayPal (libraries\/Paypal_lib.php<\/code>)<\/b>
\nThe Paypal CodeIgniter Library helps to integrate PayPal payment gateway in CodeIgniter 3 application. This library (application\/libraries\/Paypal_lib.php<\/code>) has a dependency on a configuration file (application\/config\/paypal.php<\/code>).<\/p>\n\n- __construct()<\/b> – Load required helpers, set configure variables and initiate the Paypal_lib class.<\/li>\n
- button()<\/b> – Set value of the PayPal form submit button.<\/li>\n
- image()<\/b> – Set image to the PayPal form submit button.<\/li>\n
- add_field()<\/b> – Add field to PayPal form.<\/li>\n
- paypal_auto_form()<\/b> – Generate an entire HTML page consisting of a form with hidden elements which is submitted to paypal via the BODY element’s onLoad attribute.<\/li>\n
- paypal_form()<\/b> – Build PayPal form.<\/li>\n
- validate_ipn()<\/b> – Validate PayPal IPN request.<\/li>\n<\/ul>\n
<?php defined<\/span>(<\/span>'BASEPATH'<\/span>) OR exit(<\/span>'No direct script access allowed'<\/span>);
<\/span>\/**
* PayPal Library for CodeIgniter 3.x
*
* Library for PayPal payment gateway. It helps to integrate PayPal payment gateway
* in the CodeIgniter application.
*
* It requires PayPal configuration file and it should be placed in the config directory.
*
* @package CodeIgniter
* @category Libraries
* @author CodexWorld
* @license http:\/\/www.codexworld.com\/license\/
* @link http:\/\/www.codexworld.com
* @version 2.0
*\/
<\/span>class <\/span>Paypal_lib
<\/span>{
var <\/span>$last_error<\/span>; <\/span>\/\/ holds the last error encountered
<\/span>var <\/span>$ipn_log<\/span>; <\/span>\/\/ bool: log IPN results to text file?
<\/span>var <\/span>$ipn_log_file<\/span>; <\/span>\/\/ filename of the IPN log
<\/span>var <\/span>$ipn_response<\/span>; <\/span>\/\/ holds the IPN response from paypal
<\/span>var <\/span>
![\"paypal-developer-sandbox-account-codeigniter-codexworld\"](\"https:\/\/www.codexworld.com\/wp-content\/uploads\/2018\/07\/paypal-developer-sandbox-account-codexworld-1024x302.png\")
<\/div>\n<\/li>\n