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PHP如何生成1万条不重复数据，

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Release： 2016-06-23 14:04:05
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请教：PHP如何生成1万条不重复数据


回复讨论(解决方案)

一万条怎样的数据  

1-10000也是不重复的阿  

每次要生成一万条（以上），而且是数字组成。每条数据要17位

组织一个17位的现在的时间(精确到秒)数值加1，然后从1到10000，每次都用当前时间加循环的数值,应该不会有重的 

$fn = '随机数.txt';for($i=0; $i<10000; $i++) {  file_put_contents($fn, sprintf('%07d%08d', rand(0, 9999999), rand(0, 99999999)).PHP_EOL, FILE_APPEND);}
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文件 随机数.txt 中就是你要的结果

时间可以用时间戳来表示

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