transaction-api\CreateTransactionToFundMultisigAddress.php
<?php

Create TX To Fund Multisig Address

This sample code demonstrate how you can create a new transaction, as documented here at: http://dev.blockcypher.com/#creating-transactions Destination address is a multisig address.

API used: POST /v1/btc/main/txs/new

require __DIR__ . '/../bootstrap.php';

To use BlockCypher’s two-endpoint transaction creation tool, first you need to provide the input address(es), output address, and value to transfer (in satoshis). This is provided in the form of a partially-filled out TX request object

/// Tx inputs $input = new \BlockCypher\Api\TXInput(); $input->addAddress("n3D2YXwvpoPg8FhcWpzJiS3SvKKGD8AXZ4"); /// Tx outputs $output = new \BlockCypher\Api\TXOutput(); $output->setAddresses(array( "03798be8162d7d6bc5c4e3b236100fcc0dfee899130f84c97d3a49faf83450fd81", "03dd9f1d4a39951013b4305bf61887ada66439ab84a9a2f8aca9dc736041f815f1", "03c8e6e99c1d0b42120d5cf40c963e5e8048fd2d2a184758784a041a9d101f1f02" )); $output->setScriptType("multisig-2-of-3"); $output->setValue(1000); // Satoshis /// Tx $tx = new \BlockCypher\Api\TX(); $tx->addInput($input); $tx->addOutput($output); /// For Sample Purposes Only. $request = clone $tx; $txClient = new \BlockCypher\Client\TXClient($apiContexts['BTC.test3']); try { $txSkeleton = $txClient->create($tx); } catch (Exception $ex) { ResultPrinter::printError("Created Multisig TX (fund multisig address)", "TXSkeleton", null, $request, $ex); exit(1); } ResultPrinter::printResult("Created Multisig TX (fund multisig address)", "TXSkeleton", $txSkeleton->getTx()->getHash(), $request, $txSkeleton); return $txSkeleton;

TX request object:

Source: n3D2YXwvpoPg8FhcWpzJiS3SvKKGD8AXZ4

Destination: 2Mu7dJvawNdhshTkKRXGAVLKdr2VA7Rs1wZ

Script type: multisig-2-of-3

Value: 1000 satoshis

/* TX request object: { "inputs":[ { "addresses":"n3D2YXwvpoPg8FhcWpzJiS3SvKKGD8AXZ4" } ], "outputs":[ { "addresses":[ "03798be8162d7d6bc5c4e3b236100fcc0dfee899130f84c97d3a49faf83450fd81", "03dd9f1d4a39951013b4305bf61887ada66439ab84a9a2f8aca9dc736041f815f1", "03c8e6e99c1d0b42120d5cf40c963e5e8048fd2d2a184758784a041a9d101f1f02" ], "script_type":"multisig-2-of-3", "value":1000 } ] } */