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getrandmax — 显示随机数最大的可能值
返回调用 rand() 可能返回的最大值。
rand() 返回 随机数可能返回的最大值
[#1] navjot at nspeaks dot com [2015-07-31 14:09:53]
The maximum value returned by getrandmax() is valid only if you call the rand() function without any parameter.
For eg
<?php
getrand(35000, 50000);
?>
would still work because you have specified the limits even though getrandmax() returned 32767.