Questions tagged [php]
Questions regarding the use of the PHP scripting language with Ethereum.
53
questions
2
votes
1answer
19 views
Create signed message without JSON RPC node in PHP
I am trying to recreate effect of web3's eth.accounts.sign in PHP and I struggle to find good resources how to do it properly.
I have seen this
(found it thanks to this thread) and based on what I ...
0
votes
0answers
35 views
Web3 library to use with Laravel [duplicate]
Is there some library like web3.js or ethers.js but in PHP to use with Laravel?
(Which code is hopefully maintained)
Or is PHP just the strongest choice possible I want to work with web3?
0
votes
0answers
30 views
eth_sendTransaction gas required exceeds allowance
$result = $client->callMethod('eth_sendTransaction', [array(
"from" => $address->address,
"to" => "0xac52822dde76b9c4cd701d5f4402acedb2a86cc1",
...
0
votes
0answers
8 views
I cant connetc geth in docker container from other container using docker name
I have docker-composer setup: Php and Geth. I can ping from php docker container to geth cont. but I cant get response from it. If I hard code ip address of this geth container, I get response if I ...
2
votes
0answers
17 views
ethereum-php library SmartContract balanceOf always returns 0
I am trying to check balance of some USDT token using ethereum-php library but it always return 0.
Here is the code,
$contractMeta = json_decode('[{"constant":true,"inputs":[],"name":"name","...
1
vote
1answer
100 views
Infura getLogs returns an empty result
I'm writing a crypto based system with PHP on Infura, and now I am coding a script to retrieve logs for a specific address. This is my code:
$ch = curl_init($my_server_url);
$data = array(
'...
0
votes
1answer
33 views
Automate token distribution?
How can I execute a function on a smart contract from a web-app backend? (Laravel / PHP)
My smart contracts holds X tokens.
In my MySQL database, users are owed X tokens. I have their wallet ...
1
vote
1answer
33 views
What are the minimum requirements for Geth server only for API calls?
I want to run a platform based on Ethereum and PHP to let our customers to sell/buy Ethereum based currencies online, and we have not any plan to mine the blockchain. In this regard, please help me to ...
0
votes
0answers
69 views
Geth web3.eth.contract returns null
I understand that the way I'm doing this is a bit backwards, but I cannot install node.js onto our server, and we are using a PHP backend which doesn't have very good Ethereum support.
I am trying to ...
1
vote
2answers
60 views
Testrpc on ubuntu
I have a .php website on my ubuntu virtual machine. I want to start the testrpc in this machine, so I can interract with my smartcontract with this web interface. Is this possible?
0
votes
1answer
50 views
Sending ETH or Tokens from the command line to be integrated in a PHP script
I'm relatively new to using ETH on the command line. Do I use Geth or Parity? All I want to do is be able to send some ETH or Tokens from my eth private key. Which way is the best way to do it? I plan ...
1
vote
1answer
70 views
Initiate transaction from server to smart contract
In my case, i have an API written in PHP which periodically checks the database. If certain condition was met, i need to send an alert message from the API to an account/node in the Ethereum ...
1
vote
0answers
338 views
Ethereum Transaction Using cUrl and web3.php, I get a Receipt but the Transaction is not sent to the Network
This has been doing my head in all day, after wading through and managing to get all my values converted to hex I create and sign the ethereum transaction using the web3p/ethereum-tx library from ...
1
vote
1answer
122 views
My web3.php installation question
How can I install web3.php? Can I use shared hosting to run it or I must use vps, if I use vps I must use root to install web3.php? Thanks.
1
vote
0answers
753 views
Unable to locate package php5.6-mbstring [closed]
root@iZwz98r5jfsgx41dfymo6iZ:/usr/local/lib# sudo apt-get install php5.6-mbstring
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package ...
1
vote
1answer
558 views
Invalid sender when sending Raw Transaction, signed w/ ethereum-tx on PHP
I am using PHP and ethereum-tx library https://github.com/web3p/ethereum-tx to sign transactions but when trying to send them to the node I got an "invalid sender" error. Besides, exactly the same ...
asked Nov 21 '18 at 12:04
Juan Ignacio Pérez Sacristán
2,7634 gold badges27 silver badges60 bronze badges
2
votes
0answers
55 views
Ethereum js wallet for php
https://github.com/ethereumjs/ethereumjs-wallet
I need this library with the same functions in PHP
Would u give me the link
0
votes
1answer
112 views
how to pass value to contract via php (no java script)?
I wrote a contract that get a unit and do something
My question :
How to pass a value to this contract function via PHP? (not js,py,MetaMask, ... . just in php)
For example, I use this and install ...
0
votes
1answer
176 views
How do I check the Ethereum balance and unique transactions count of a Smart Contract over a period of time?
Basically I want to be able to track smart contracts balance and unique transactions over a period of time such as , last 24hours, last hour and so.
What would be the best approach into doing this? ...
0
votes
1answer
93 views
Unable to Generate Address Endpoint Blockcypher
I am trying to generate an address using Blockcyphers Address Endpoint using cUrl.
- https://api.blockcypher.com/v1/eth/main/addrs?token=eth
But it returns this error - "Endpoint not found. Please ...
0
votes
1answer
97 views
getting result of a method of smart contract that don't change any state variables
I know in ethereum if a method of smart contract don't change state variables we can see it's result without making any transaction.
now I want to know how can see result of this method ...
1
vote
0answers
221 views
Recovered Sender Address from Raw Transaction
I'm trying this code example : https://thomasclowes.com/verifying-an-ethereum-signature-on-the-server-php-2/
Expected $recoveredSenderAddress = 0xd5bfc359c3a377bb8afd41db8ffc8d1349718233
Actual $...
1
vote
1answer
353 views
generating raw trx and sending it to the network shows “invalid sender” error
I'm trying to make an ethereum raw transaction by php and these libraries:
https://github.com/simplito/elliptic-php
https://github.com/kornrunner/php-keccak
https://github.com/web3p/rlp
this is my ...
1
vote
0answers
114 views
Any easy php script to sign and send transactions maybe run contract also
Thanks I have JavaScript version but not php version especially for sign and send transaction
1
vote
2answers
2k views
How to fetch ETH/USD price from the coinmarketcap api
I want to fetch the current ETH-USD price from this api (https://api.coinmarketcap.com/v1/ticker/ethereum/?convert=USD). How do I fetch just the price into a variable in PHP for reuse on my ...
1
vote
0answers
685 views
How to transfer tokens from smart contract using PHP?
I want to transfer tokens using PHP script and that script will be executed using cronjob, is there library available to transfer by unlocking account using private key?
0
votes
1answer
117 views
Ethereum-PHP How to receive outbound parameters from smart contract function
In contract sol file I have function definition:
function product(uint32 _prdId) public view
returns (uint32 prdId, string prdName, address prd, uint closeTime,
uint promoTime,uint8 bonus, ...
2
votes
1answer
617 views
Ethereum-PHP Calling contract function with parameter
I'm not the author of Ethereum part but have to connect to using php. Choosen Ethereum-PHP package (https://github.com/digitaldonkey/ethereum-php). Have connection to ethereum and smart contract but ...
3
votes
1answer
670 views
Ethereum address genеration and keccаk256
I'm trying to generate eth address on PHP. Having issue with keccak256.
I'm using this class: https://github.com/kornrunner/php-keccak
It works good, I checked many times on https://emn178.github.io/...
0
votes
2answers
477 views
How to make an action to send record to my database?
I want all transaction of the tokens send to my database through smart contract.
For example, A send 10Token to B, it will show on blockchain, but I also want a function which smart contract will let ...
1
vote
1answer
649 views
Failed RLPx handshake
I am trying to use https://github.com/kesar/ethereum-php on the back-end of my web site.
I followed a tutorial http://iotbl.blogspot.ca/2017/03/setting-up-private-ethereum-testnet.html to set up two ...
1
vote
1answer
207 views
Dapp fundamental q about listening solidity events
Sol:
I created contract with events that are raised when is called some function.
Html fo:
Those functions are called via web3.js with abi and address - easy.
Backend (no js) asp or php:
I am not ...
1
vote
2answers
3k views
How to transfer ETH between two addresses using geth and json rpc
I have geth running on my server. I am building a php website which act as wallet. Now iam able to create addresses.
I need to be able to deposit and withdraw ETH between addresses on same node. I ...
1
vote
1answer
987 views
Interact with MetaMask via PHP
I can easily interact with metamask via web3 js like this (JS):
web3 = new Web3(web3.currentProvider);
Is it possible to interact with metamask via php? For example (PHP):
$ethereum = new Ethereum('...
1
vote
2answers
569 views
Why doesn't my verification of a signed message signature work in PHP?
I am attempting to verify a signed message in PHP.
To be clear, I am not looking to interface with JSON-RPC or any external service, which I both a) know works and b) successfully verifies the ...
0
votes
1answer
363 views
Automating Listing Addresses and Balances Using PHP
I want to incorporate a javascript in php that list all the accounts and shows balances for those. This is my script for that:
<script language="javascript">
function checkAllBalances() {
var ...
1
vote
1answer
2k views
Generate Ethereum address in PHP?
I am working on a web application where I need to generate Ethereum addresses in PHP, how do i go about generating a random Ethereum public/private key pair in PHP?
thanks.
0
votes
1answer
1k views
Is there a way to read data from smart contract using PHP?
I have a smart contract. All what I need is to make a PHP script that will get some public data from smart contract using it's address. How can I do that? Maybe there is some libraries?
2
votes
1answer
2k views
Generate Ethereum address from a private key
My question was first asked on stackoverflow but due lack of privileges I couldn't move it here directly.
I am trying to generate an Ethereum address based on a given private key following this "How ...
2
votes
2answers
1k views
web3 js eth.contract equivalent in PHP
var Web3 = require('web3');
var web3 = new Web3();
web3.setProvider(new web3.providers.HttpProvider("http://blahblah.com:8545"));
var token = web3.eth.contract(ABI).at("x0x_contract_address")
How ...
1
vote
0answers
355 views
Can't connect to RPC on php server
I am using php to connect RPC server. In localhost, everything works fine. I moved my files to host to test and I realised that $geth->Method_Name() is not working.
If I print_r($geth), here is the ...
1
vote
0answers
60 views
I want to create a local exchange site how to add ethereum? [closed]
like a said I want to build an exchange site how can I add ethereum on it?
7
votes
3answers
7k views
web3 js php implementation
Is there any way to communicate with ethereum through php ? what i want is to get Smart contract details from contract address like Contract token name, decimal, abi, balance, tokens supply symbols ...
1
vote
1answer
1k views
Save hash data with KECCAK-256 then reverse the process in PHP
I am saving data hashed with keccak-256 in Solidity and I am trying read that data with PHP, but cant seem to find any good solutions.
I can get PHP to read off the data but I cant arrive at the same ...
2
votes
2answers
2k views
transactions through a php website [closed]
how I use to users to send ethereum transactions through a php website?My server is Apache. Is the Ethereum JavaScript API useful to doing this? Thank you!
0
votes
2answers
454 views
PHP and wordpress
i am WordPress and php developer. i am working on the plugin development
for ethereum. i does't find the sdk or api for the php or
JavaScript. can you please guide me for the API documentation for the
...
5
votes
1answer
4k views
How to generate Ethereum address in PHP?
I am working on a web application where I need to generate Ethereum addresses in PHP, how do i go about generating a random Ethereum public/private key pair in PHP? thanks.
4
votes
1answer
659 views
How to send an ETH address from a webpage to a smart contract?
What's the best way to get an ETH address from a website form submission (php) passed to a smart contract in order that the smart contract can send some new minted Tokens to the ETH address collected ...
1
vote
0answers
645 views
Calling an Ethereum contract function from PHP [duplicate]
How can I call a contract function from PHP and print the return? Is there any good PHP libraries for that? thanks.
9
votes
1answer
14k views
PHP Library for Ethereum
I am looking for a PHP library to interact with Ethereum. Are there any active open source projects of PHP libraries for Ethereum available?
Thanks for your help
