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Liqpay payment widget

$liqpay = new LiqPay($public_key, $private_key);
$html = $liqpay->cnb_form(array(
'action'         => 'pay',
'amount'         => '1',
'currency'       => 'USD',
'description'    => 'description text',
'order_id'       => 'order_id_1',
'version'        => '3'
Payment widget options
dataRequiredStringjson string with APIs parameters is encoded by the base64_encode( json_string ) function , where base64_encode – returns a string encoded by the base64 method
signatureRequiredStringUnique signature of each request base64_encode( sha1( private_key + data + private_key) ) , where sha1 is a returned hash in the form of a binary string of 20 characters .
embedToOptionalStringThe element on the HTML page in which the widget will be displayed
modeOptionalStringWidget display mode on the site Possible values embed – built-in window popup – pop-up window on your site .
languageOptionalStringWidget display language ru , uk , en .
  <div id="liqpay_checkout"></div>
	window.LiqPayCheckoutCallback = function() {
			data: "eyAidmVyc2lvbiIgOiAzLCAicHVibGljX2tleSIgOiAieW91cl9wdWJsaWNfa2V5IiwgImFjdGlv" +
			"biIgOiAicGF5IiwgImFtb3VudCIgOiAxLCAiY3VycmVuY3kiIDogIlVTRCIsICJkZXNjcmlwdGlv" +
			signature: "QvJD5u9Fg55PCx/Hdz6lzWtYwcI=",
			embedTo: "#liqpay_checkout",
			language: "ru",
			mode: "embed" // embed || popup
		}).on("liqpay.callback", function(data){
		}).on("liqpay.ready", function(data){
			// ready
		}).on("liqpay.close", function(data){
			// close
  <script src="//" async></script>
Parameters for forming data :
The main ones
versionRequiredNumberAPI version. The current value is 3
public_keyRequiredStringThe public key is the store identifier. You can get the key in the store settings
actionRequiredStringType of operation. Possible values pay – payment , hold – blocking funds on the sender’s account , subscribe – regular payment , paydonate – donation , auth – pre- authorization of the card
amountRequiredNumberPayment amount. For example 5 , 7.34
currencyRequiredStringPayment currency. Possible values USD , EUR , UAH
descriptionRequiredStringPurpose of payment .
order_idRequiredStringUnique purchase ID in your store. The maximum length is 255 characters .
expired_dateOptionalStringThe time by which the client can pay the bill in UTC . Transmitted in 2016-04-24 00:00:00 format
languageOptionalStringClient language ru , uk , en
paytypesOptionalStringThe parameter that transmits the payment methods that will be displayed at the checkout. Possible values ​​apay – payment using Apple Pay , gpay – payment using Google Pay , card – payment by card , liqpay – through the liqpay account , privat24 – through the privat24 account , masterpass – through the masterpass account , moment_part – installment , cash – cash , invoice – bill to e-mail , qr – QR code scanning. If the parameter is not passed, then the store settings, Checkout tab are applied .
result_urlOptionalStringThe URL in your store to which the buyer will be redirected after completing the purchase. The maximum length is 510 characters .
server_urlOptionalStringAPI URL in your store for notifications about the change of payment status server -> server ). The maximum length is 510 characters . More details
verifycodeOptionalStringA possible value of Y . Dynamic verification code, generated and returned in Callback . Similarly, the generated code will be transferred in the verification transaction for display in the client’s card statement. Works for action = auth .
Payment splitting options
split_rulesOptionalStringPayment with splitting the amount to several recipients. This parameter specifies a JSON array with payment splitting rules. When using the split_rules parameter, there is one debit from the client and several credits to the recipients. The acquiring fee is charged to each store in the split_rules array . Example JSON string :

Payment with splitting the amount to several recipients. This parameter specifies a JSON array with payment splitting rules. When using the split_rules parameter, there is one debit from the client and several credits to the recipients. The acquiring fee is charged to each store in the split_rules array . Example JSON string 

    "public_key": "i000000001",
    "amount": 1,
    "commission_payer": "sender",
    "server_url": "https://server1/callback"
    "public_key": "i000000002",
    "amount": 2,
    "commission_payer": "receiver",
    "server_url": "https://server2/callback"
Sender settings
sender_address NEWOptionalStringSender’s address
sender_cityOptionalStringSender’s city
sender_country_codeOptionalStringCountry code of the sender. Digital ISO 3166-1 code
sender_first_nameOptionalStringName of the sender
sender_last_nameOptionalStringSender’s last name
sender_postal_codeOptionalStringPostal code of the sender
Secure payment options
letter_of_creditOptionalStringTo enable the acceptance of payments by letter of credit, pass the parameter with the value 1
letter_of_credit_dateOptionalStringLetter of credit expiration date in the following format : 2015-03-31 00:00:00 UTC .
Regular payment options
subscribeOptionalStringRegular payment. Possible values 1
subscribe_date_startOptionalStringDate of first payment. The time must be specified in the following format : 2015-03-31 00:00:00 UTC . If an expired date is specified, the subscription will be activated from the current date of receipt of the request
subscribe_periodicityOptionalStringPeriodicity of withdrawal of funds. Possible values :
month – once a month year – once a year
Options for payment in 1 click
customerOptionalStringThe unique identifier of the client on the merchant’s website. When transferring the parameter, LiqPay remembers the client’s payment details and his identifier – further payment can be made in 1 click. The maximum length is 100 characters . ( When using the parameter for <b>Masterpass 1 click</b>, the valid phone number of the payer is transferred in this field )
recurringbytokenOptionalStringAllows you to generate the payer’s card_token , which you will receive in the callback request to server_url . card_token allows you to make payments without entering the details of the payer’s card, using the token payment API – that is, in 1 click. To receive a card_token , you must pass the following values ​​in the request : 1
customer_user_idOptionalStringUser ID in the merchant system, transmitted at each user payment (must not match customer , used for payment using the <b>Masterpass 1 click</b> wallet )
Other parameters
daeOptionalStringLong entry Detail Addenda .
The dae parameter is a JSON string to which the base64 function has been applied . JSON can contain the following parameters :
  "airLine": "Avia", // абревіатура авіакомпанії, max 4 символів.
  "ticketNumber": "ACSFD12354SA", // номер квитка, max 15 символів. 
  "passengerName": "John Doe", // ім'я пасажира, max 29 символів.
  "flightNumber": "742", // номер рейсу, max 5 цифр.
  "originCity": "DP", // код міста/аеропорту вильоту, max 5 символів.
  "destinationCity": "NY", // код міста/аеропорту призначення, max 5 символів.
  "departureDate": "100514" // дата вильоту в форматі YYMMDD, max 6 цифр.

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