5 ways to generate unique order numbers in php-PHP Tutorial-php.cn

5 ways to generate unique order numbers in php

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Release： 2023-04-02 13:42:02

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This article mainly introduces the method of generating a unique order number in php, which has a certain reference value. Now I share it with you. Friends in need can refer to it

php generates a unique order number 5 methods

The first one

private function doCreateOrderNumber($time){
        　　$i=1;
        　　$dd = date(&#39;Ymd&#39;,$time);
        　　$aa = &#39;OH&#39;.$dd;
        　　$res = $this->orderModel->query("select sn from sr_order_list where sn like &#39;$aa%&#39; order by id limit 1");
        　　if(!isset($res[0][&#39;sn&#39;])){
            　　　　$i = 1;
        　　}else{
            　　　　$i = (int)substr($res[0][&#39;sn&#39;],9,10) + 1;
        　　}
        　　while(true){
            　　　　$nsn = &#39;OH&#39;.$dd.$i;
            　　　　$exist = $this->orderModel->query("select id from sr_order_list where sn = &#39;$nsn&#39; ");
            　　　　if($exist){
                　　　　　　$i++;
            　　　　}else{
                　　　　　　return $nsn;
            　　　　}
        　　}
    }

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The second one

$osn = date(&#39;Ymd&#39;) . str_pad(mt_rand(1, 99999), 5, &#39;0&#39;, STR_PAD_LEFT);
echo $osn; //2018070462577

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The third one

$osn = date(&#39;Ymd&#39;).substr(implode(NULL, array_map(&#39;ord&#39;, str_split(substr(uniqid(), 7, 13), 1))), 0, 8);
echo $osn; //2018070499495653

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The fourth one

$order_id_main = date(&#39;YmdHis&#39;) . rand(10000000,99999999);
  $order_id_len = strlen($order_id_main);
  $order_id_sum = 0;
  for($i=0; $i<$order_id_len; $i++){
  $order_id_sum += (int)(substr($order_id_main,$i,1));
  }
  $osn = $order_id_main . str_pad((100 - $order_id_sum % 100) % 100,2,&#39;0&#39;,STR_PAD_LEFT);
echo $osn; //201807041332258742313727

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Fifth Type

$code = array(&#39;A&#39;, &#39;B&#39;, &#39;C&#39;, &#39;D&#39;, &#39;E&#39;, &#39;F&#39;, &#39;G&#39;, &#39;H&#39;, &#39;I&#39;, &#39;J&#39;);
$osn = $code[intval(date(&#39;Y&#39;)) - 2011] . strtoupper(dechex(date(&#39;m&#39;))) . date(&#39;d&#39;) . substr(time(), -5) . substr(microtime(), 2, 5) . sprintf(&#39;%02d&#39;, rand(0, 99));
echo $osn; //H704764673624352

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