如何无误地生成 Blockcypher 合约？

Question

我在这里建立自己的合同： https://www.blockcypher.com/dev/ethereum/#create-contract-endpoint

ENGINE.PHP

<?php
function blockcypher($method,$page,$data = ""){
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, "https://api.blockcypher.com/v1/".$page);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

    if($data != ''){
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
    }
    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $method);

    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

    $headers = array();
    $headers[] = 'Content-Type: application/x-www-form-urlencoded';
    curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
    
    $result = curl_exec($curl);
    if (curl_errno($curl)) {
        echo 'Error:' . curl_error($curl);
    }
    curl_close ($curl);
    return $result;
}
?>

PROCESS.PHP

<?php
session_start();
error_reporting(1);
include 'ENGINE.PHP';

$token = '?token=YOURFREETOKEN';
$server = "eth/main";

$data = "{\"solidity\":\"contract mortal { address owner; function mortal() { owner = msg.sender; } function kill() { if (msg.sender == owner) suicide(owner); } } contract greeter is mortal { string greeting; function greeter(string _greeting) public { greeting = _greeting; } function greet() constant returns (string) { return greeting; } }\",\"params\":[\"Hello BlockCypher Test\"]}";
$contract_details = blockcypher("POST","$server/contracts$token",$data);
echo "<br><br>USDT Generate Contract: ";
var_dump($contract_details);

来自 PROCESS.PHP

的输出

USDT Generate Contract: string(101) "{"error": "Error compiling Solidity source code: fork/exec /usr/bin/solc: no such file or directory"}"

我遇到了这个错误，我不知道是什么问题，因为我对这种事情的了解太少了。

代码示例： https://paiza.io/projects/XNbO9tM4UwxL-NPaxY1Wcw?language=php

Answer 1

Error compiling Solidity source code: fork/exec /usr/bin/solc: no such file or directory

这是 Blockcypher 方面的错误。您可能想向他们报告。

solc 是一个“solidity 编译器”以及它的作用 - 它获取文本源代码和配置（例如您使用的是哪个版本的 Solidity，是否要运行优化器，...) 作为输入，returns 字节码、ABI 和元数据作为输出。

因此，当您调用 Blockchypher 端点时，他们的系统会尝试打开二进制文件 /usr/bin/solc。但是文件在他们的系统上放错了位置，端点 returns 这个错误。

如何无误地生成 Blockcypher 合约？

How to generate a Blockcypher contract without error?

php

curl

solidity

erc20

blockcypher