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  1. <?php
  2.  
  3. function isValidSolanaAddressRPC(string $walletAddress): bool
  4. {
  5.     // Solana RPC URL
  6.     $rpcUrl = "https://a...content-available-to-author-only...a.com";
  7.  
  8.     // JSON-RPC payload for getAccountInfo
  9.     $payload = [
  10.         "jsonrpc" => "2.0",
  11.         "id" => 1,
  12.         "method" => "getAccountInfo",
  13.         "params" => [
  14.             $walletAddress, // Wallet address to validate
  15.             ["encoding" => "jsonParsed"]
  16.         ]
  17.     ];
  18.  
  19.     // Initialize cURL
  20.     $ch = curl_init($rpcUrl);
  21.     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  22.     curl_setopt($ch, CURLOPT_POST, true);
  23.     curl_setopt($ch, CURLOPT_HTTPHEADER, [
  24.         'Content-Type: application/json',
  25.     ]);
  26.     curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
  27.  
  28.     // Execute the request
  29.     $response = curl_exec($ch);
  30.     $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  31.     curl_close($ch);
  32.  
  33.     // Check HTTP response
  34.     if ($httpCode !== 200) {
  35.         throw new Exception("Error: RPC request failed with HTTP status $httpCode.");
  36.     }
  37.  
  38.     // Decode the JSON response
  39.     $data = json_decode($response, true);
  40.  
  41.     // Debug: Print the response (useful for troubleshooting)
  42.     // print_r($data);
  43.  
  44.     // Check for a valid account in the response
  45.     if (isset($data['result']['value']) && $data['result']['value'] !== null) {
  46.         return true; // Address is valid and exists on-chain
  47.     }
  48.  
  49.     return false; // Address is invalid or not found
  50. }
  51.  
  52. // Example usage
  53. try {
  54.     $walletAddress = "4Nd1mQEjaF8mPyYNqcAySAnj7JxxR4pFdHRSj2ZXn7sX"; // Test wallet address
  55.     if (isValidSolanaAddressRPC($walletAddress)) {
  56.         echo "Valid Solana wallet address." . PHP_EOL;
  57.     } else {
  58.         echo "Invalid Solana wallet address." . PHP_EOL;
  59.     }
  60. } catch (Exception $e) {
  61.     echo "Error: " . $e->getMessage() . PHP_EOL;
  62. }
Success #stdin #stdout 0.03s 26472KB
comments (?)
stdin 
Standard input is empty
stdout 
Error: Error: RPC request failed with HTTP status 0.
https://ideone.com/vqSqe0
language:
PHP (php 7.3.5)
created:
6 days ago
visibility:
public

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