php 分库分表hash算法

PHP 2018-12-30

<div class="codetitle"><a style="CURSOR: pointer" data="59611" class="copybut" id="copybut59611" onclick="doCopy('code59611')"> 代码如下:

<div class="codebody" id="code59611">
//分库分表算法
function calc_hash_db($u,$s = 4)
{
$h = sprintf("%u",crc32($u));
$h1 = intval(fmod($h,$s));
return $h1;
}
for($i=1;$i<100;$i++)
{
echo calc_hash_db($i);
echo "
";
} function calc_hash_tbl($u,$n = 256,$m = 16)
{
$h = sprintf("%u",crc32($u));
$h1 = intval($h / $n);
$h2 = $h1 % $n;
$h3 = base_convert($h2,10,$m);
$h4 = sprintf("%02s",$h3);
return $h4;
}

hash hash 分库分表

vue+thinkphp5实现微信扫码支付(NATIVE支付)

统一支付是JSAPI/NATIVE/APP各种支付场景下生成支付订单，返...