Comments (2)
我写了个签名认证
$check = [];
foreach ($notify as $k => $v) {
if ($k != 'sign') {
$check[$k] = $v;
}
}
ksort($check);
$str = http_build_query($check);
$str = $str . '&key=' . config('constants.wx_mch_key');
$sign = strtoupper(md5($str));
if ($sign != $notify['sign']) {
//签名不正确
}
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支付通知默认只验证了数据结构,没有验证签名。
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