commits branches releases Fetching contributors Unlicense Latest commit d4e46fd Mar 7, 2017 Sanity check range for redeemScript m and n values Permalink README.md bitcoin-lib-php PHP libraries implementing bitcoin key functions, as well as BIP32 and electrum.NB: This library is outdated, and no longer maintained.BC breaks will not be accepted for this reason./Bit-Wasp/bitcoin-php The library intends to expose a lot of general functionality which isn't available using the RPC (like deterministic addresses).It also allows you to reduce the number of queries that are made to bitcoind, such as createrawtransaction/signrawtransaction/decoderawtransaction.As such, such, use of bitcoin RPC functionality can be kept to a minimum.Libraries Raw Transactions: create, sign, validate, with support for P2SH.Create multi-signature addresses, create redeeming transactions.BIP32: Functions for generating BIP32 deterministic keys.

Electrum: Create seed from mnemonic, create MPK from seed, derive public keys from MPK, or private keys from seed.BitcoinLib: The core class, with key functionality, encoding/decoding & validation functions, etc. BIP39: Functions for generating Mnemonic code for generating deterministic keys (possibly password protected) If this library powers your project and you're feeling tipsy, buy me lunch some day!get bitcoin anonymously1sCVtkEhQmvp3D4K22Pw9xhFPTDWFh8SZ Installation Installing via Composer (recommended) Install Composer in your project: /installer | php Create a composer.json file in your project root: { "require": { "bitwasp/bitcoin-lib": "1.0.*" } } Install via Composer php composer.phar install Dependencies Mcrypt Extension (Random data) The Mcrypt Extension is required for generating random data, it does this internally by using /dev/urandom on unix or CryptGenRandom on windows.java card bitcoin

GMP Extension (Math) The GMP Extension is required for the crypto math.PECL intl extension (BIP39) The PECL intl extension is required for BIP39 Mnemonic Seeds when a UTF-8 passphrase is used.Mdanter's PHP Pure PHP Elliptic Curve Cryptography Library mdanter/ecc is required for most of the crypto.bitcoin hacker caughtContributing Please make sure that all phpunit tests pass (and preferably added new unit tests) and that the coding style passing PSR2 checks: ./vendor/bin/phpunit ./vendor/bin/phpcs --standard=./phpcs.xml -n -s ./src/litecoin web walletJump to: , Linux Apache MySQL PHP + Bitcoin tutorial.bitcoin hash minerFor this introduction we assume that you have GNU/Linux server with Apache and PHP and that you wish to interact with the Bitcoin network from a web application.uso dei bitcoin

We assume some knowledge of Bitcoin and experience in PHP.While this is written for PHP, the same principles apply for other languages.See the associated API reference pages for info on other languages.The easiest way to get started is to run Bitcoin in daemon mode with which PHP communicates via local HTTP requests.check bitcoin transaction blockchainA library called JSON-RPC is used to call the various functions of bitcoind, which will respond back with a JSON object.bitcoin athensIt is however recommended to use one of the Alternative Libraries listed below instead, since they are more sophisticated.kinh nghiệm bitcoinContents 1 2 3 4 5 6 You can download the Bitcoin daemon from the homepage and run one of the included binaries or compile your own from the included source code.

See Running Bitcoin for details on configuring bitcoind.Before running bitcoind you will need to create a configuration file in the Bitcoin data directory (~/.bitcoin/bitcoin.conf on Linux): If you miss this step, bitcoind will remind you.Bitcoin will begin synchronizing with the network and downloading a complete copy of the block chain.As of August 2012, more than 2gb of data must be downloaded and verified during this process.It may take two or more hours to complete.You will know when it's done when the block count reaches the current count.Assuming Bitcoin has finished the initialisation process; download the file jsonRPCClient.php from JSON-RPC PHP and place it in a web-accessible location.Second, create a PHP file with the following and visit it with your browser to test.Note: The jsonRPCClient library uses fopen() and will throw an exception saying "Unable to connect" if it receives a 404 or 500 error from bitcoind.This prevents you from being able to see error messages generated by bitcoind (as they are sent with status 404 or 500).

The Alternative Libraries listed below are similar in function to JSON-RPC PHP but do not have this issue.Bitcoin amounts can range from 1 Satoshi (0.00000001 BTC) to nearly 2,100,000,000,000,000 (21,000,000 BTC).To avoid rounding errors, you must make sure your PHP implementation supports the full range of Bitcoin values without losing precision.Most PHP implementations use IEEE 64-bit double-precision floating point numbers with 53 bits of precision, which is enough to correctly represent the full range of bitcoin values.See Proper Money Handling (JSON-RPC) for more information./genjix/bitcoin) and use the GMP and BC Math libraries for all calculations involving bitcoin amounts.In Bitcoin, money is sent to addresses and many addresses can be held by one wallet.The balance shown by default in bitcoind is the sum of the bitcoins in all the addresses in the wallet.Bitcoin goes another step.You can have accounts.Each account holds multiple addresses and acts like a mini-bitcoind.In your application, each user should have a unique username.

You may then query bitcoind for a unique address using $bitcoin->getaccountaddress("user889"); [gets the first address for user889] or $bitcoin->getnewaddress("user889"); [creates a new address for user889].The customer then deposits to this address.You can check the funds for that customer by doing $bitcoin->getbalance("user889", 4);.The 4 indicates the minimum number of confirmations we will accept before assuming this payment is valid.If you will be using accounts for multiple deposits and withdrawals long-term, you may want to consider tracking user balances in your own database.This simplifies transfers between your application's accounts and decouples your accounts from the Bitcoin wallet.Using getnewaddress helps increase maintain anonymity of your users by making it hard for a malicious agent to track payments flowing through your application.Running getnewaddress too often, however, will cause your wallet to become filled with many empty addresses.It is therefore recommended to in some way limit the number of unfunded addresses each user can request.