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@ 2017-10-23T22:54:42Z

<?php

function amx_authorization_header($id,$key,$url,$method='GET',$body=null) {
        $url=strtolower(urlencode($url));
        $method=strtoupper($method);
        $content=empty($body)?'':base64_encode(md5($body,true));
        $time=1508797800;
        $nonce=10;
        $data=implode('',[$id,$method,$url,$time,$nonce,$content]);
        $secret=base64_decode($key);
        $signature=base64_encode(hash_hmac('sha256',$data,$secret,true));
   
  //print($data);                                
        return 'Authorization: amx'.implode(':',[$id,$signature,$nonce,$time]);
    }

amx_authorization_header('cde','abc' ,'https://broker.negociecoins.com.br/tradeapi/v1/user/balance');
print(amx_authorization_header('cde','abc' ,'https://broker.negociecoins.com.br/tradeapi/v1/user/balance'));

Output for git.master, git.master_jit, rfc.property-hooks: Authorization: amxcde:UiRT3A2YPV3JiJp00MxJsFo6C9SSjVtANm86KGDVSJ8=:10:1508797800

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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