一句代码：
SELECT FLOOR(10000 + RAND() * 89999) AS random_number
FROM table1
WHERE "random_number" NOT IN (SELECT unique_id FROM table2)
LIMIT 1
随机生成5位数字，并且不重复。上面的代码真是给人无限的联想力。
例如：
function get_unique_username($chance=10,$show_sql=FALSE)
{
global $conn;
// connect db
if(!$conn) connect();
$output = FALSE;
$rand =
代码：
<?php
$timezones = array("abbr"=>"ACDT","name"=>"Australian Central Daylight Time","offset"=>"+10:30");
$timezones = array("abbr"=>"ACST","name"=>"Australian Central Standard Time","offset"=>"+9:30");
$timezones = array("abbr"=>"ACT","name"=>"ASEAN Common Time","offset"=>"+8");… Read More
测试DEMO
I am currently working on a large project and part of the project is to send simple text message notices using PHP. Our client had looked into a number of expensive services to send simple SMS messages but most were cost prohibitive for a start-up venture.
As usual, I was not satisfied paying for something that
问题如下：
PHP 程序 出现下面错误 是什么原因。
Notice: Use of undefined constant multi – assumed ‘multi’ in /www/users/***.com/tb/edittbgoods.php on line 104Notice: Use of undefined constant must – assumed ‘must’ in /www/users/***.com/tb/edittbgoods.php on line 105Notice: Use of undefined constant must – assumed … Read More
