使用http的get方式和php的SHA-256

<?php

 $link = @mysql_connect("localhost", "帳號", "密碼") or die("Could not connect");
echo "Connected successfully"."<br>";
mysql_select_db("test1") or die("Could not select database");
echo 'I get the id= ' . htmlspecialchars($_GET["id"]) ;
echo "<br>";
echo 'I get the value= ' . htmlspecialchars($_GET["hash"]) ;
$id=$_GET["id"];
 $hash=$_GET["hash"];
$hash_sha256_value = hash("sha256",$hash);
echo "<br>";
echo "hash_sha256之雜湊值="."$hash_sha256_value"."<br>";

$sql_query ="INSERT INTO `hash_value`(`id`,`value`)
VALUES (";
$sql_query .="'".$id."',";
$sql_query .="'".$hash_sha256_value."')";

$result = mysql_query($sql_query) or die("Query failed");
mysql_close();


?>