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To query the balance of TRC20 tokens, you need a valid Tron address. With this tutorial, you can easily query the balance of the respective Tron address. We have written a detailed tutorial for this purpose. Read more.
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<?php
# ----- REPLACE THE VARIABLES BELOW WITH YOUR DATA -----
$apikey = "YOURAPIKEY";
$tronaddress = "TRONADDRESS"; // Tron address you want to get the balance of
$contractaddress = "CONTRACTADDRESS"; // Smart contract address of the Token
# -------------------------------------------------------
$ch = curl_init("https://api.chaingateway.io/v2/tron/balances/".$tronaddress."/erc20/".$contractaddress);
# Setup request to send json via POST. This is where all parameters should be entered.
curl_setopt( $ch, CURLOPT_CUSTOMREQUEST , 'GET' );
curl_setopt( $ch, CURLOPT_HTTPHEADER, array("Content-Type:application/json", "Authorization: " . $apikey));
# Return response instead of printing.
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
# Send request.
$result = curl_exec($ch);
curl_close($ch);
# Decode the received JSON string
$resultdecoded = json_decode($result, true);
echo $result;