(PHP 4, PHP 5, PHP 7)
mt_rand — 锟斤拷锟缴革拷锟矫碉拷锟斤拷锟斤拷锟�
$min
, int $max
) : int锟杰讹拷锟较碉拷 libc 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭恍╋拷锟饺凤拷锟斤拷锟轿粗拷锟斤拷锟斤拷远锟斤拷液锟斤拷锟斤拷锟絇HP 锟斤拷 rand() 锟斤拷锟斤拷默锟斤拷使锟斤拷 libc 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�mt_rand() 锟斤拷锟斤拷锟角凤拷锟斤拷式锟斤拷锟斤拷锟芥换锟斤拷锟侥★拷锟矫猴拷锟斤拷锟斤拷锟斤拷 » Mersenne Twister 锟斤拷锟斤拷知锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷圆锟斤拷锟斤拷锟斤拷锟斤拷值锟斤拷平锟斤拷锟劫度憋拷 libc 锟结供锟斤拷 rand() 锟斤拷锟侥憋拷锟斤拷
锟斤拷锟矫伙拷锟斤拷峁╋拷锟窖★拷锟斤拷锟� min 锟斤拷
max锟斤拷mt_rand()
锟斤拷锟斤拷 0 锟斤拷 mt_getrandmax()
之锟斤拷锟轿憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要 5 锟斤拷 15锟斤拷锟斤拷锟斤拷 5 锟斤拷 15锟斤拷之锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
mt_rand(5, 15)锟斤拷
锟斤拷锟斤拷 min 锟斤拷锟斤拷锟斤拷 0锟斤拷 锟斤拷 max 锟斤拷锟斤拷锟斤拷锟角碉拷 mt_getrandmax()
锟斤拷锟斤拷锟斤拷锟斤拷锟街碉拷锟街拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�
| 锟芥本 | 说锟斤拷 |
|---|---|
| 4.2.0 | 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷远锟斤拷锟斤拷胁锟斤拷帧锟� |
Example #1 mt_rand() 锟斤拷锟斤拷
<?php
echo mt_rand() . "\n";
echo mt_rand() . "\n";
echo mt_rand(5, 15);
?>
锟斤拷锟斤拷锟斤拷锟教碉拷锟斤拷锟斤拷锟斤拷锟斤拷冢锟�
1604716014 1478613278 6
The distribution of mt_rand() return values is biased
towards even numbers on 64-bit builds of PHP when
max is beyond 2^32.