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<html>
<head>
<title>Online PHP Script Execution</title>
</head>
<body>
<?php
   $key="3859E07585FA45D87535C20619AF14EC6EA25C179CF156D07DE26449EEEEA1FECA4BCA1A176EFBABBBCA6B1E21FCD95DBC557A2476728E30B2D4699AB5B62B73";
    $transId = "60115287997";
    $apiLogin = "5T9cRn9FK";
    $Amount = "5.00";
    $textToHash= "^". $apiLogin."^". $transId ."^". $Amount."^";
   HMACSHA512($key,$textToHash);
   
   
   function HMACSHA512( $key,$textToHash)
   {
       if($key==null || $key=='')
            throw new Exception("HMACSHA512: key Parameter cannot be empty.");
        if($textToHash==null || $textToHash=='')
            throw new Exception("HMACSHA512: textToHash Parameter cannot be empty.");
        if(strlen($key)%2!=0 || strlen($key)<2)
            throw new Exception("HMACSHA512: key Parameter cannot be odd or less than 2 characters.");
        echo $key;
        $byte_array=unpack('C*', 'The quick fox jumped over the lazy brown dog');
        var_dump($byte_array);
       return null;
   }
   
   function hextobin($hexstr) 
    { 
        $n = strlen($hexstr); 
        $sbin="";   
        $i=0; 
        while($i<$n) 
        {       
            $a =substr($hexstr,$i,2);           
            $c = pack("H*",$a); 
            if ($i==0){$sbin=$c;} 
            else {$sbin.=$c;} 
            $i+=2; 
        } 
        return $sbin; 
    } 
?>
</body>
</html>
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