{"id":30619,"date":"2023-11-18T07:12:30","date_gmt":"2024-01-09T06:14:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-2%e3%80%91php%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e4%bc%9a%e5%be%97%e5%88%b0%e5%a4%a7%e5%a4%a7%e7%9a%84%e6%94%b9%e5%96%84%e3%80%82-2\/"},"modified":"2025-08-12T20:02:37","modified_gmt":"2025-08-12T12:02:37","slug":"%e3%80%90php8-2%e3%80%91php%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e4%bc%9a%e5%be%97%e5%88%b0%e5%a4%a7%e5%a4%a7%e7%9a%84%e6%94%b9%e5%96%84%e3%80%82-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-2%e3%80%91php%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e4%bc%9a%e5%be%97%e5%88%b0%e5%a4%a7%e5%a4%a7%e7%9a%84%e6%94%b9%e5%96%84%e3%80%82-2\/","title":{"rendered":"\u3010PHP8.2\u3011PHP\u7684\u968f\u673a\u6570\u4f1a\u5f97\u5230\u5927\u5927\u7684\u6539\u5584"},"content":{"rendered":"

\u5728PHP\u4e2d\uff0c\u968f\u673a\u6570\u4e00\u76f4\u4ee5\u6765\u90fd\u5b58\u5728\u5404\u79cd\u95ee\u9898\uff0c\u6240\u4ee5\u5b83\u5f88\u51fa\u540d\u3002<\/p>\n

\u5173\u4e8e\u968f\u673a\u6570\u7684\u8d28\u91cf\u8fd9\u4e00\u5927\u95ee\u9898\uff0c\u901a\u8fc7random_int\u7684\u51fa\u73b0\uff0c\u6682\u65f6\u770b\u5230\u4e86\u4e00\u79cd\u89e3\u51b3\u65b9\u6cd5\uff0c\u4f46\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u5b58\u5728\u4e00\u4e9b\u5176\u4ed6\u95ee\u9898\uff0c\u6bd4\u5982\u72b6\u6001\u662f\u5168\u5c40\u7684\u7b49\u7b49\u3002<\/p>\n

\u51b3\u5b9a\u5728PHP8.2\u4e2d\u5f15\u5165Random\\Randomizer\u7c7b\u4ee5\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u3002
\n\u4e0b\u9762\u662f\u76f8\u5173RFC\uff0cRandom Extension 5.x\u7684\u4ecb\u7ecd\u3002<\/p>\n

5.x \u968f\u673a\u6269\u5c55<\/p>\n

\u5f15\u8a00\u76ee\u524d\uff0cPHP\u7684\u968f\u673a\u529f\u80fd\u4ecd\u5b58\u5728\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n

\u95ee\u9898\u95ee\u9898\u7684\u4e3b\u8981\u70b9\u6709\u4ee5\u4e0b4\u70b9\u3002<\/p>\n

\u30fb\u5168\u7403\u72b6\u6001
\n\u30fb\u6885\u68ee\u65cb\u8f6c\u5b50
\n\u30fb\u968f\u673a\u6027
\n\u30fb\u5185\u90e8\u673a\u5236<\/p>\n

\u5168\u7403\u72b6\u6001Mersenne Twister\u7684\u5185\u90e8\u72b6\u6001\u4f1a\u88ab\u9690\u5f0f\u5730\u4fdd\u5b58\u5728\u5168\u5c40\u533a\u57df\u4e2d\uff0c\u800c\u4e14\u7528\u6237\u6ca1\u6709\u4fee\u6539\u5b83\u7684\u65b9\u6cd5\u3002\u56e0\u6b64\uff0c\u5728\u51fd\u6570\u5185\u4f7f\u7528\u968f\u673a\u51fd\u6570\u53ef\u80fd\u5bfc\u81f4\u4ee3\u7801\u9519\u8bef\u3002<\/p>\n

\u5047\u8bbe\u6709\u4ee5\u4e0b\u4ee3\u7801\u3002<\/p>\n

function<\/span> foo<\/span>():<\/span> void<\/span> {}<\/span>\r\n \r\nmt_srand<\/span>(<\/span>1234<\/span>);<\/span>\r\nfoo<\/span>();<\/span>\r\nmt_rand<\/span>(<\/span>1<\/span>,<\/span> 100<\/span>);<\/span> \/\/ 76<\/span>\r\n<\/code><\/pre>\n
\u6211\u505a\u4e86\u5982\u4e0b\u66f4\u6539\u3002<\/p>\n
function<\/span> foo<\/span>():<\/span> void<\/span> {<\/span>\r\n    str_shuffle<\/span>(<\/span>'abc'<\/span>);<\/span> \/\/ \u30e9\u30f3\u30c0\u30e0\u95a2\u6570\u3092\u5165\u308c\u305f<\/span>\r\n}<\/span>\r\n \r\nmt_srand<\/span>(<\/span>1234<\/span>);<\/span>\r\nfoo<\/span>();<\/span>\r\nmt_rand<\/span>(<\/span>1<\/span>,<\/span> 100<\/span>);<\/span> \/\/ 65<\/span>\r\n<\/code><\/pre>\n
\u7531\u4e8e\u4f7f\u7528\u4e86str_shuffle()\u51fd\u6570\uff0c\u5bfc\u81f4mt_rand()\u7684\u7ed3\u679c\u4ece76\u53d8\u6210\u4e8665\u3002<\/p>\n
\u4f7f\u7528\u5916\u90e8\u5305\u5c06\u4f7f\u5f97\u8fd9\u79cd\u4ee3\u7801\u7684\u7ef4\u62a4\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002
\n\u751a\u81f3\u4e8e\uff0c\u5728\u751f\u6210\u5668\uff08Generator\uff09\u548c\u7ea4\u7a0b\uff08Fiber\uff09\u4e2d\uff0c\u5f53\u524d\u72b6\u6001\u4f1a\u5f88\u5bb9\u6613\u4e22\u5931\u3002<\/p>\n
\u4e0a\u8ff0\u7684\u662f\uff0cmt_srand()\u548csrand()\u51fd\u6570\u65e0\u6cd5\u63d0\u4f9b\u53ef\u91cd\u73b0\u7684\u968f\u673a\u503c\u3002<\/p>\n
\u5728\u50cfSwoole\u8fd9\u6837\u7684\u6269\u5c55\u6a21\u5757\u4e2d\uff0c\u7531\u4e8eMersenne Twister\u7684\u5185\u90e8\u72b6\u6001\u4e5f\u88ab\u590d\u5236\u5230\u5b50\u8fdb\u7a0b\u4e2d\uff0c\u6240\u4ee5\u4f1a\u4ea7\u751f\u968f\u673a\u6570\u4e0d\u5b89\u5168\u7684\u95ee\u9898\u3002<\/p>\n
\u6885\u68ee\u65cb\u8f6c\u5668”\u5c3d\u7ba1\u6885\u68ee\u65cb\u8f6c\u5668\u662f\u4e00\u79cd\u4f18\u79c0\u7684\u4f2a\u968f\u673a\u6570\u751f\u6210\u5668\uff0c\u4f46\u5b83\u5df2\u7ecf\u8fc7\u65f6\uff0c\u4e0d\u518d\u9002\u5e94\u73b0\u4ee3\u9700\u6c42\u3002”<\/p>\n
\u5c3d\u7ba12\u768419937\u6b21\u65b9\u51cf1\u6709\u4e00\u4e2a\u975e\u5e38\u957f\u7684\u5468\u671f\uff0c\u5b83\u4ecd\u7136\u5728BigCrash\u548cCrush\u8fd9\u6837\u7684\u6d4b\u8bd5\u4e2d\u5931\u8d25\u4e86\u3002<\/p>\n
\u6b64\u5916\uff0c\u6885\u68ee\u65cb\u8f6c\u5668\u53ea\u80fd\u751f\u621032\u4f4d\u5927\u5c0f\u7684\u503c\u3002\u8fd9\u4e0e\u8bb8\u591a\u8fd0\u884c\u73af\u5883\u548czend_long\u5747\u4e3a64\u4f4d\u7684\u73b0\u72b6\u4e0d\u7b26\u3002<\/p>\n
\u968f\u673a\u6027 (su\u00ed j\u012bPHP\u7684\u5185\u7f6e\u51fd\u6570shuffle\u3001str_shuffle\u3001array_rand\u4f7f\u7528\u6885\u68ee\u65cb\u8f6c\u5668\u4f5c\u4e3a\u968f\u673a\u6570\u6e90\u3002
\n\u8fd9\u4e0d\u662f\u5bc6\u7801\u5b66\u4e0a\u5b89\u5168\u7684\u3002
\n\u5982\u679c\u9700\u8981\u4e00\u4e2a\u6ee1\u8db3\u5bc6\u7801\u5b66\u5b89\u5168\u6027\u7684\u7c7b\u4f3c\u51fd\u6570\uff0c\u7528\u6237\u5fc5\u987b\u4f7f\u7528random_int\u7b49\u6765\u5b9e\u73b0\u65b0\u7684\u51fd\u6570\u3002<\/p>\n
\u5185\u90e8\u90e8\u5206\u5728PHP\u4e2d\uff0c\u7531\u4e8e\u5386\u53f2\u539f\u56e0\uff0c\u968f\u673a\u6570\u7684\u5b9e\u73b0\u5728\u5404\u4e2a\u5730\u65b9\u90fd\u6709\u70b9\u6df7\u4e71\u3002\u5b83\u4eec\u88ab\u5b9e\u73b0\u5728\u4e0d\u540c\u7684\u6587\u4ef6\u4e2d\uff0c\u6709\u4e9b\u751a\u81f3\u5f7c\u6b64\u4f9d\u8d56\uff0c\u8fd9\u53ef\u80fd\u8ba9\u6269\u5c55\u6a21\u5757\u7684\u5f00\u53d1\u4eba\u5458\u611f\u5230\u56f0\u60d1\u3002<\/p>\n
\n
-extensionheadersourceCombined LCGstandardphp_lcg.hlcg.clibc rand*standardphp_rand.hrand.cMT19937standardphp_mt_rand.hmt_rand.cCSPRNGstandardphp_random.hrandom.c<\/p>\n
\u7528\u6237\u6001\u65b9\u6cd5
\n\u6211\u4eec\u6765\u8003\u8651\u4e00\u79cd\u901a\u8fc7\u7528\u6237\u81ea\u884c\u5b9e\u73b0\u6765\u89e3\u51b3\u7c7b\u4f3c\u95ee\u9898\u7684\u65b9\u6cd5\u3002
\n\u9996\u5148\uff0c\u6211\u4eec\u5b9e\u73b0\u4e00\u4e2a\u968f\u673a\u6570\u751f\u6210\u5668\u3002
\n\u6211\u4eec\u5c06\u6bd4\u8f83\u8fd9\u91cc\u4f7f\u7528PHP\u7f16\u5199\u7684\u5b9e\u73b0\u548c\u6211\u4eec\u81ea\u5df1\u5b9e\u73b0\u7684XorShift128+\u3002<\/p>\n
class<\/span> XorShift128Plus<\/span>\r\n{<\/span>\r\n    \/* constants *\/<\/span>\r\n    protected<\/span> const<\/span> MASK_S5<\/span> =<\/span> 0x07ffffffffffffff<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MASK_S18<\/span> =<\/span> 0x00003fffffffffff<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MASK_S27<\/span> =<\/span> 0x0000001fffffffff<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MASK_S30<\/span> =<\/span> 0x00000003ffffffff<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MASK_S31<\/span> =<\/span> 0x00000001ffffffff<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MASK_LO<\/span> =<\/span> 0x00000000ffffffff<\/span>;<\/span>\r\n \r\n    protected<\/span> const<\/span> ADD_HI<\/span> =<\/span> 0x9e3779b9<\/span>;<\/span>\r\n    protected<\/span> const<\/span> ADD_LO<\/span> =<\/span> 0x7f4a7c15<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MUL1_HILO<\/span> =<\/span> 0x476d<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MUL1_HIHI<\/span> =<\/span> 0xbf58<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MUL1_LO<\/span> =<\/span> 0x1ce4e5b9<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MUL2_HIHI<\/span> =<\/span> 0x94d0<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MUL2_HILO<\/span> =<\/span> 0x49bb<\/span>;<\/span>\r\n    protected<\/span> const<\/span> MUL2_LO<\/span> =<\/span> 0x133111eb<\/span>;<\/span>\r\n \r\n    \/* states *\/<\/span>\r\n    protected<\/span> int<\/span> $s0<\/span>;<\/span>\r\n    protected<\/span> int<\/span> $s1<\/span>;<\/span>\r\n \r\n    public<\/span> function<\/span> __construct<\/span>(<\/span>int<\/span> $seed<\/span>)<\/span>\r\n    {<\/span>\r\n        $s<\/span> =<\/span> $seed<\/span>;<\/span>\r\n        $this<\/span>-><\/span>s0<\/span> =<\/span> $this<\/span>-><\/span>splitmix64<\/span>(<\/span>$s<\/span>);<\/span>\r\n        $this<\/span>-><\/span>s1<\/span> =<\/span> $this<\/span>-><\/span>splitmix64<\/span>(<\/span>$s<\/span>);<\/span>\r\n    }<\/span>\r\n \r\n    public<\/span> function<\/span> generate<\/span>():<\/span> int<\/span>\r\n    {<\/span>\r\n        $s1<\/span> =<\/span> $this<\/span>-><\/span>s0<\/span>;<\/span>\r\n        $s0<\/span> =<\/span> $this<\/span>-><\/span>s1<\/span>;<\/span>\r\n \r\n        $s0h<\/span> =<\/span> (<\/span>$s0<\/span> >><\/span> 32<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $s0l<\/span> =<\/span> $s0<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $s1h<\/span> =<\/span> (<\/span>$s1<\/span> >><\/span> 32<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $s1l<\/span> =<\/span> $s1<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $zl<\/span> =<\/span> $s0l<\/span> +<\/span> $s1l<\/span>;<\/span>\r\n        $zh<\/span> =<\/span> $s0h<\/span> +<\/span> $s1h<\/span> +<\/span> (<\/span>$zl<\/span> >><\/span> 32<\/span>);<\/span>\r\n        $z<\/span> =<\/span> (<\/span>$zh<\/span> <<<\/span> 32<\/span>)<\/span> |<\/span> (<\/span>$zl<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>);<\/span>\r\n \r\n        $this<\/span>-><\/span>s0<\/span> =<\/span> $s0<\/span>;<\/span>\r\n        $s1<\/span> ^=<\/span> $s1<\/span> <<<\/span> 23<\/span>;<\/span>\r\n        $this<\/span>-><\/span>s1<\/span> =<\/span> $s1<\/span> ^<\/span> $s0<\/span> ^<\/span> ((<\/span>$s1<\/span> >><\/span> 18<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_S18<\/span>)<\/span> ^<\/span> ((<\/span>$s0<\/span> >><\/span> 5<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_S5<\/span>);<\/span>\r\n \r\n        return<\/span> $z<\/span>;<\/span>\r\n    }<\/span>\r\n \r\n    protected<\/span> function<\/span> splitmix64<\/span>(<\/span>int<\/span> &<\/span>$s<\/span>):<\/span> int<\/span>\r\n    {<\/span>\r\n        $zl<\/span> =<\/span> $s<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $zh<\/span> =<\/span> (<\/span>$s<\/span> >><\/span> 32<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $carry<\/span> =<\/span> $zl<\/span> +<\/span> self<\/span>::<\/span>ADD_LO<\/span>;<\/span>\r\n        $z<\/span> =<\/span> $s<\/span> =<\/span> ((<\/span>$zh<\/span> +<\/span> self<\/span>::<\/span>ADD_HI<\/span> +<\/span> (<\/span>$carry<\/span> >><\/span> 32<\/span>))<\/span> <<<\/span> 32<\/span>)<\/span> |<\/span> (<\/span>$carry<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>);<\/span>\r\n \r\n        $z<\/span> ^=<\/span> (<\/span>$z<\/span> >><\/span> 30<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_S30<\/span>;<\/span>\r\n        $zl<\/span> =<\/span> $z<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $zh<\/span> =<\/span> (<\/span>$z<\/span> >><\/span> 32<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $lo<\/span> =<\/span> self<\/span>::<\/span>MUL1_LO<\/span> *<\/span> $zl<\/span>;<\/span>\r\n        $zll<\/span> =<\/span> $zl<\/span> &<\/span> 0xffff<\/span>;<\/span>\r\n        $zlh<\/span> =<\/span> $zl<\/span> >><\/span> 16<\/span>;<\/span>\r\n        $mul1l<\/span> =<\/span> $zll<\/span> *<\/span> self<\/span>::<\/span>MUL1_HILO<\/span>;<\/span>\r\n        $mul1h<\/span> =<\/span> $zll<\/span> *<\/span> self<\/span>::<\/span>MUL1_HIHI<\/span> +<\/span> $zlh<\/span> *<\/span> self<\/span>::<\/span>MUL1_HILO<\/span> +<\/span> ((<\/span>$mul1l<\/span> >><\/span> 16<\/span>)<\/span> &<\/span> 0xffff<\/span>);<\/span>\r\n        $mul1<\/span> =<\/span> ((<\/span>$mul1h<\/span> &<\/span> 0xffff<\/span>)<\/span> <<<\/span> 16<\/span>)<\/span> |<\/span> (<\/span>$mul1l<\/span> &<\/span> 0xffff<\/span>);<\/span>\r\n        $mul2<\/span> =<\/span> ((<\/span>self<\/span>::<\/span>MUL1_LO<\/span> *<\/span> $zh<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>);<\/span>\r\n        $carry<\/span> =<\/span> ((<\/span>$lo<\/span> >><\/span> 32<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>);<\/span>\r\n        $hi<\/span> =<\/span> $mul1<\/span> +<\/span> $mul2<\/span> +<\/span> $carry<\/span>;<\/span>\r\n        $z<\/span> =<\/span> (<\/span>$hi<\/span> <<<\/span> 32<\/span>)<\/span> |<\/span> (<\/span>$lo<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>);<\/span>\r\n \r\n        $z<\/span> ^=<\/span> (<\/span>$z<\/span> >><\/span> 27<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_S27<\/span>;<\/span>\r\n        $zl<\/span> =<\/span> $z<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $zh<\/span> =<\/span> (<\/span>$z<\/span> >><\/span> 32<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $lo<\/span> =<\/span> self<\/span>::<\/span>MUL2_LO<\/span> *<\/span> $zl<\/span>;<\/span>\r\n \r\n        $zll<\/span> =<\/span> $zl<\/span> &<\/span> 0xffff<\/span>;<\/span>\r\n        $zlh<\/span> =<\/span> $zl<\/span> >><\/span> 16<\/span>;<\/span>\r\n        $mul1l<\/span> =<\/span> $zll<\/span> *<\/span> self<\/span>::<\/span>MUL2_HILO<\/span>;<\/span>\r\n        $mul1h<\/span> =<\/span> $zll<\/span> *<\/span> self<\/span>::<\/span>MUL2_HIHI<\/span> +<\/span> $zlh<\/span> *<\/span> self<\/span>::<\/span>MUL2_HILO<\/span> +<\/span> ((<\/span>$mul1l<\/span> >><\/span> 16<\/span>)<\/span> &<\/span> 0xffff<\/span>);<\/span>\r\n        $mul1<\/span> =<\/span> ((<\/span>$mul1h<\/span> &<\/span> 0xffff<\/span>)<\/span> <<<\/span> 16<\/span>)<\/span> |<\/span> (<\/span>$mul1l<\/span> &<\/span> 0xffff<\/span>);<\/span>\r\n \r\n        $mul2<\/span> =<\/span> (<\/span>self<\/span>::<\/span>MUL2_LO<\/span> *<\/span> $zh<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $carry<\/span> =<\/span> (<\/span>$lo<\/span> >><\/span> 32<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>;<\/span>\r\n        $hi<\/span> =<\/span> $mul1<\/span> +<\/span> $mul2<\/span> +<\/span> $carry<\/span>;<\/span>\r\n        $z<\/span> =<\/span> (<\/span>$hi<\/span> <<<\/span> 32<\/span>)<\/span> |<\/span> (<\/span>$lo<\/span> &<\/span> self<\/span>::<\/span>MASK_LO<\/span>);<\/span>\r\n \r\n        return<\/span> $z<\/span> ^<\/span> ((<\/span>$z<\/span> >><\/span> 31<\/span>)<\/span> &<\/span> self<\/span>::<\/span>MASK_S31<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n \r\n$xs128pp<\/span> =<\/span> new<\/span> \\XorShift128Plus<\/span>(<\/span>1234<\/span>);<\/span>\r\n \r\n\/\/ \u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/span>\r\nfor<\/span> (<\/span>$i<\/span> =<\/span> 0<\/span>;<\/span> $i<\/span> <<\/span> 1000000000<\/span>;<\/span> $i<\/span>++<\/span>)<\/span> {<\/span>\r\n    $xs128pp<\/span>-><\/span>generate<\/span>();<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5f53\u6267\u884c\u8fd9\u4e9b\u5b9e\u73b0\u5e76\u5bf9mt_rand()\u8fdb\u884c\u4e861000000000\u6b21\u64cd\u4f5c\u65f6\uff0c\u901f\u5ea6\u5982\u4e0b\u3002<\/p>\n
\n
-PHP – XorShift128+PHP – MtRand (savvot\/random)Native – MTPHP 8.10m3.218s0m4.161s0m0.160sPHP 8.1 with JIT0m1.836s0m2.184s0m0.184s
\n\u8bf7\u53c2\u8003\u90ae\u4ef6\u5217\u8868\uff0c\u65e0\u8bba\u4f7f\u7528JIT\u4e0e\u5426\uff0c\u539f\u751f\u5b9e\u73b0\u90fd\u660e\u663e\u66f4\u5feb\u3002<\/p>\n
\u63d0\u6848 (T\u00ed’\u00e0n)\u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3aRandomizer\u7684\u7c7b\uff0c\u63d0\u4f9b\u5404\u79cd\u5404\u6837\u7684\u968f\u673a\u65b9\u6cd5\u3002
\n\u901a\u8fc7\u5c06Engine\u63a5\u53e3\u4f20\u9012\u7ed9\u6784\u9020\u51fd\u6570\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u66f4\u6539\u968f\u673a\u6570\u751f\u6210\u5668\u3002
\n\u4e3a\u4e86\u65b9\u4fbf\u8d77\u89c1\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u63d0\u4f9b\u4e86\u57fa\u672c\u5f15\u64ce\uff0c\u4f46\u4e5f\u8ba1\u5212\u63d0\u4f9b\u4e00\u79cd\u80fd\u591f\u8f7b\u677e\u6dfb\u52a0\u7b97\u6cd5\u7684\u63a5\u53e3\u3002<\/p>\n
\u8fd9\u4e2a\u5efa\u8bae\u6709\u4ee5\u4e0b\u4f18\u70b9\u3002<\/p>\n
\u6839\u636e\u73af\u5883\u4ea4\u6362\u968f\u673a\u6570\u4ea7\u751f\u5668\u60a8\u53ef\u4ee5\u6839\u636e\u73af\u5883\u9009\u62e9\u968f\u673a\u6570\u751f\u6210\u5668\u3002<\/p>\n
\u4f8b\u5982\uff0c\u5728\u5f00\u53d1\u65f6\u6211\u4eec\u53ef\u80fd\u60f3\u4f7f\u7528\u4f2a\u968f\u673a\u6570\u53d1\u751f\u5668\uff08PRNG\uff09\uff0c\u800c\u5728\u6b63\u5f0f\u751f\u4ea7\u73af\u5883\u4e2d\u5219\u5e0c\u671b\u4f7f\u7528\u52a0\u5bc6\u5b89\u5168\u4f2a\u968f\u673a\u6570\u53d1\u751f\u5668\uff08CSPRNG\uff09\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u7b80\u5355\u7684\u4ee3\u7801\u6765\u5b9e\u73b0\u8fd9\u6837\u7684\u9700\u6c42\u3002<\/p>\n
$rng<\/span> =<\/span> $is_production<\/span>\r\n    ?<\/span> new<\/span> Random\\Engine\\Secure<\/span>()<\/span>\r\n    :<\/span> new<\/span> Random\\Engine\\PCG64<\/span>(<\/span>1234<\/span>);<\/span>\r\n \r\n$randomizer<\/span> =<\/span> new<\/span> Random\\Randomizer<\/span>(<\/span>$rng<\/span>);<\/span>\r\n$randomizer<\/span>-><\/span>shuffleString<\/span>(<\/span>'foobar'<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u56fa\u5b9a\u7684\u968f\u673a\u6570\u5e8f\u5217\u6709\u65f6\u5019\uff0c\u50cf\u662f\u5728\u9700\u8981\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u60c5\u51b5\u4e0b\u6301\u7eed\u751f\u6210\u968f\u673a\u6570\uff0c\u6216\u8005\u5728\u8ba1\u7b97\u8d1f\u8f7d\u65b9\u9762\u6bd4\u8f83\u56f0\u96be\u3002<\/p>\n
$required_result<\/span> =<\/span> mt_rand<\/span>(<\/span>1<\/span>,<\/span> 100<\/span>);<\/span>\r\nwhile<\/span> ((<\/span>$generated<\/span> =<\/span> mt_rand<\/span>(<\/span>1<\/span>,<\/span> 100<\/span>))<\/span> !==<\/span> $required_result<\/span>)<\/span> {<\/span>\r\n    echo<\/span> \"retry<\/span>\\n<\/span>\"<\/span>;<\/span>\r\n}<\/span>\r\n\r\necho<\/span> \"done<\/span>\\n<\/span>\"<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u52a8\u6001\u6ce8\u5165\u6765\u6539\u53d8\u6d4b\u8bd5\u65f6\u7684\u884c\u4e3a\u3002<\/p>\n
$engine<\/span> =<\/span> new<\/span> class<\/span> ()<\/span> implements<\/span> Random\\Engine<\/span> {<\/span>\r\n    public<\/span> function<\/span> generate<\/span>():<\/span> string<\/span>\r\n    {<\/span>\r\n        \/\/ Result must be a string.<\/span>\r\n        return<\/span> pack<\/span>(<\/span>'V'<\/span>,<\/span> 1<\/span>);<\/span>\r\n    }<\/span>\r\n};<\/span>\r\n$randomizer<\/span> =<\/span> new<\/span> Random\\Randomizer<\/span>(<\/span>$engine<\/span>);<\/span>\r\n \r\n$required_result<\/span> =<\/span> $randomizer<\/span>-><\/span>getInt<\/span>(<\/span>1<\/span>,<\/span> 100<\/span>);<\/span>\r\nwhile<\/span> ((<\/span>$generated<\/span> =<\/span> $randomizer<\/span>-><\/span>getInt<\/span>(<\/span>1<\/span>,<\/span> 100<\/span>))<\/span> !==<\/span> $required_result<\/span>)<\/span> {<\/span>\r\n    echo<\/span> \"retry<\/span>\\n<\/span>\"<\/span>;<\/span>\r\n}<\/span>\r\n \r\necho<\/span> \"done<\/span>\\n<\/span>\"<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u5177\u6709\u52a0\u5bc6\u5b89\u5168\u7684\u968f\u673a\u64cd\u4f5c
\n\u4f7f\u7528CSPRNG\u8fdb\u884c\u5b57\u7b26\u4e32\u548c\u6570\u7ec4\u7684\u6d17\u724c\uff0c\u8fc7\u53bb\u5fc5\u987b\u5728\u7528\u6237\u7aef\u5b9e\u65bd\u3002
\n\u672a\u6765\u5c06\u4e0d\u518d\u9700\u8981\u7528\u6237\u7aef\u5b9e\u65bd\u3002<\/p>\n
$engine<\/span> =<\/span> new<\/span> Random\\Engine\\Secure<\/span>();<\/span>\r\n$randomizer<\/span> =<\/span> new<\/span> Random\\Randomizer<\/span>(<\/span>$engine<\/span>);<\/span>\r\n \r\n$items<\/span> =<\/span> range<\/span>(<\/span>1<\/span>,<\/span> 10<\/span>);<\/span>\r\n$items<\/span> =<\/span> $randomizer<\/span>-><\/span>shuffleArray<\/span>(<\/span>$items<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u4fdd\u6301\u5b89\u5168 ch\u00ed\u7531\u4e8e\u8303\u56f4\u9650\u4e8e\u5b9e\u4f8b\uff0c\u53ef\u4ee5\u9632\u6b62\u5916\u90e8\u5305\u6216\u5149\u7ea4\u7b49\u5916\u90e8\u56e0\u7d20\u7684\u53d8\u5316\u3002<\/p>\n
\u65b9\u6cd5\u4ee5\u4e0b\u5c06\u5b9e\u73b0\u4ee5\u4e0b\u63a5\u53e3\u548c\u7c7b\u3002<\/p>\n
\u968f\u673a\u5de5\u5177\u5f15\u64ce\u754c\u9762\u63d0\u4f9b\u968f\u673a\u6570\u751f\u6210\u5668\u7684\u63a5\u53e3\u3002<\/p>\n
\u6709\u4e00\u4e2a\u540d\u4e3agenerate\uff08\uff09\u7684\u65b9\u6cd5\uff0c\u5b83\u8fd4\u56de\u4e00\u4e2a\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u3002
\n\u8fd4\u56de\u503c\u4e0d\u80fd\u4e3a\u7a7a\uff0c\u5426\u5219\u4f1a\u5f15\u53d1RuntimeException\u3002<\/p>\n
\u5982\u679c\u8981\u5728PHP\u4e2d\u5b9e\u73b0\u4e00\u4e2a\u968f\u673a\u6570\u53d1\u751f\u5668\uff0c\u9700\u8981\u4ee5Little Endian\u683c\u5f0f\u8fdb\u884c\u6253\u5305\u5e76\u8fd4\u56de\u503c\u3002<\/p>\n
\u7531\u4e8eEngine::generate()\u7684\u8fd4\u56de\u503c\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u6240\u4ee5\u65e0\u8bba\u5728\u54ea\u4e2a\u6267\u884c\u73af\u5883\u4e2d\uff0c\u5982\u679c\u79cd\u5b50\u548c\u5e8f\u5217\u76f8\u540c\uff0c\u968f\u673a\u6570\u5c06\u8fd4\u56de\u76f8\u540c\u7684\u7ed3\u679c\u3002
\n\u7136\u800c\uff0c\u5728\u7528\u6237\u5b9e\u73b0\u4e2d\uff0c\u5982\u679c\u8fd4\u56de\u4e00\u4e2a\u8d85\u8fc764\u4f4d\u7684\u5b57\u7b26\u4e32\uff0c\u6709\u53ef\u80fd\u4f1a\u88ab\u622a\u65ad\u4e3a64\u4f4d\u3002<\/p>\n
\u968f\u673a\\\u52a0\u5bc6\u5b89\u5168\u5f15\u64ce\u7684\u754c\u9762\u4e71\u6570\u53d1\u751f\u5668\u88ab\u8bc1\u660e\u5177\u6709\u5bc6\u7801\u5b66\u4e0a\u7684\u5b89\u5168\u6027\u7684\u6807\u8bb0\u754c\u9762\u3002<\/p>\n
Random\\SerializableEngine \u63a5\u53e3\u3002\u4e00\u4e2a\u8868\u793a\u968f\u673a\u6570\u53d1\u751f\u5668\u53ef\u5e8f\u5217\u5316\u7684\u63a5\u53e3\u3002
\n\u9700\u8981\u5b9e\u73b0\u4ee5\u4e0b\u4e24\u4e2a\u65b9\u6cd5\u3002<\/p>\n
__serialize<\/span>()<\/span>:<\/span> array<\/span>\r\n__unserialize<\/span>(<\/span>array<\/span> $data<\/span>)<\/span>:<\/span> void<\/span>\r\n<\/code><\/pre>\n
\u968f\u673a\u5f15\u64ce\u7684\u7ec4\u5408\u7ebf\u6027\u540c\u4f59\u53d1\u751f\u5668\u4f7f\u7528CombinedLCG\u7b97\u6cd5\u751f\u6210\u968f\u673a\u6570\u3002
\n\u6784\u9020\u51fd\u6570\u53c2\u6570\u4f5c\u4e3a\u79cd\u5b50\u503c\uff0c\u5f53\u7701\u7565\u65f6\uff0c\u79cd\u5b50\u503c\u7531CSPRNG\u751f\u6210\u3002<\/p>\n
\u5982\u679c\u4f20\u9012\u76f8\u540c\u7684\u79cd\u5b50\u503c\uff0c\u7ed3\u679c\u5c06\u59cb\u7ec8\u76f8\u540c\u3002<\/p>\n
$seed<\/span> =<\/span> 1234<\/span>;<\/span>\r\n \r\n$engine<\/span> =<\/span> new<\/span> \\Random\\Engine\\CombinedLCG<\/span>(<\/span>$seed<\/span>);<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"fc6ff102\"<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"40e0ce05\"<\/span>\r\n \r\n\/\/ \u540c\u3058\u30b7\u30fc\u30c9\u5024\u304b\u3089\u306f\u540c\u3058\u5024\u306b\u306a\u308b<\/span>\r\n$engine<\/span> =<\/span> new<\/span> \\Random\\Engine\\CombinedLCG<\/span>(<\/span>$seed<\/span>);<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"fc6ff102\"<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"40e0ce05\"<\/span>\r\n<\/code><\/pre>\n
\u968f\u673a\u5f15\u64ceMersenneTwister\u7c7b
\n\u4f7f\u7528\u6885\u68ee\u65cb\u8f6c\u7b97\u6cd5\u751f\u6210\u968f\u673a\u6570\u3002
\n\u6784\u9020\u51fd\u6570\u53c2\u6570\u4f5c\u4e3a\u79cd\u5b50\u503c\uff0c\u5f53\u7701\u7565\u65f6\u79cd\u5b50\u503c\u7531CSPRNG\u751f\u6210\u3002
\n\u5c06MT_RAND_PHP\u5e38\u91cf\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f20\u9012\u4f1a\u4f7f\u6885\u68ee\u65cb\u8f6c\u7b97\u6cd5\u635f\u574f\u3002<\/p>\n
\u5982\u679c\u4f20\u9012\u76f8\u540c\u7684\u79cd\u5b50\u503c\uff0c\u5c06\u59cb\u7ec8\u5f97\u5230\u76f8\u540c\u7684\u7ed3\u679c\u3002<\/p>\n
$seed<\/span> =<\/span> 1234<\/span>;<\/span>\r\n \r\n$engine<\/span> =<\/span> new<\/span> \\Random\\Engine\\MersenneTwister<\/span>(<\/span>$seed<\/span>);<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"2f6b0731\"<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"d3e2667f\"<\/span>\r\n \r\n\/\/ \u540c\u3058\u30b7\u30fc\u30c9\u5024\u304b\u3089\u306f\u540c\u3058\u5024\u306b\u306a\u308b<\/span>\r\n$engine<\/span> =<\/span> new<\/span> \\Random\\Engine\\MersenneTwister<\/span>(<\/span>$seed<\/span>);<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"2f6b0731\"<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"d3e2667f\"<\/span>\r\n<\/code><\/pre>\n
\u968f\u673a\u5f15\u64cePCG64\u7c7b\u4f7f\u7528PCG64\u7b97\u6cd5\u751f\u6210\u968f\u673a\u6570\u3002
\n\u6784\u9020\u51fd\u6570\u7684\u53c2\u6570\u5c06\u4f5c\u4e3a\u79cd\u5b50\u503c\uff0c\u5982\u679c\u53c2\u6570\u88ab\u7701\u7565\uff0c\u5219\u79cd\u5b50\u503c\u5c06\u7531CSPRNG\u751f\u6210\u3002<\/p>\n
\u5982\u679c\u4f20\u9012\u76f8\u540c\u7684\u79cd\u5b50\u503c\uff0c\u7ed3\u679c\u5c06\u59cb\u7ec8\u76f8\u540c\u3002<\/p>\n
$seed<\/span> =<\/span> 1234<\/span>;<\/span>\r\n \r\n$engine<\/span> =<\/span> new<\/span> \\Random\\Engine\\PCG64<\/span>(<\/span>$seed<\/span>);<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"ecfbe5990a319380\"<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"4f6b4a5b53b10e3f\"<\/span>\r\n \r\n\/\/ same seed results in same sequence of results.<\/span>\r\n$engine<\/span> =<\/span> new<\/span> \\Random\\Engine\\PCG64<\/span>(<\/span>$seed<\/span>);<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"ecfbe5990a319380\"<\/span>\r\nvar_dump<\/span>(<\/span>bin2hex<\/span>(<\/span>$engine<\/span>-><\/span>generate<\/span>()));<\/span> \/\/ \"4f6b4a5b53b10e3f\"<\/span>\r\n<\/code><\/pre>\n
\u968f\u673a\u5f15\u64ce\u5b89\u5168\u5728Secure::generate()\u4e2d\uff0c\u65e0\u6cd5\u4f20\u9012\u79cd\u5b50\uff0c\u5e76\u4e14\u6ca1\u6709\u53ef\u590d\u5236\u6027\u3002
\n\u6b64\u7c7b\u4f7f\u7528\u7684\u968f\u673a\u6570\u88ab\u4fdd\u8bc1\u662fCSPRNG\u3002<\/p>\n
\u901a\u8fc7Secure::generate()\u751f\u6210\u7684\u503c\u662f\u65e0\u6cd5\u518d\u73b0\u7684\u3002<\/p>\n
\u6700\u7ec8\u7c7b \u968f\u673a\u6570\u751f\u6210\u5668\\\u968f\u673a\u5316\u8005
\n\u8fd9\u662f\u4e00\u4e2a\u4f7f\u7528\u4f20\u9012\u7684\u968f\u673a\u6570\u751f\u6210\u5668\u6267\u884c\u968f\u673a\u6570\u5904\u7406\u7684\u7c7b\u3002
\n\u4ee5\u4e0b\u65b9\u6cd5\u5df2\u7ecf\u51c6\u5907\u597d\u3002<\/p>\n
__construct<\/span>(<\/span>Random\\Engine<\/span> $engine<\/span> =<\/span> new<\/span> Random\\Engine\\Secure<\/span>())<\/span>\r\ngetInt<\/span>()<\/span>:<\/span> int<\/span> \/\/ replaces mt_rand()<\/span>\r\ngetInt<\/span>(<\/span>int<\/span> $min<\/span>,<\/span> int<\/span> $max<\/span>)<\/span> \/\/ replaces mt_rand() and random_int()<\/span>\r\ngetBytes<\/span>(<\/span>int<\/span> length<\/span>)<\/span>:<\/span> string<\/span> \/\/ replaces random_bytes()<\/span>\r\nshuffleArray<\/span>(<\/span>array<\/span> $array<\/span>)<\/span>:<\/span> array<\/span> \/\/ replaces shuffle()<\/span>\r\nshuffleString<\/span>(<\/span>string<\/span> $string<\/span>)<\/span>:<\/span> string<\/span> \/\/ replaces str_shuffle()<\/span>\r\n__serialize<\/span>()<\/span>:<\/span> array<\/span>\r\n__unserialize<\/span>(<\/span>array<\/span> $data<\/span>)<\/span>:<\/span> void<\/span>\r\n<\/code><\/pre>\n
\u53ef\u4ee5\u5728\u6784\u9020\u51fd\u6570\u4e2d\u4f20\u9012\u4e00\u4e2a\u968f\u673a\u6570\u751f\u6210\u5668\u3002
\n\u5982\u679c\u7701\u7565\uff0c\u5219\u4f7f\u7528Random\\Engine\\Secure\u3002<\/p>\n
\u8fd9\u4e2a\u7c7b\u672c\u8eab\u662f\u53ef\u4ee5\u5e8f\u5217\u5316\u7684\uff0c\u4f46\u662f\u53ef\u80fd\u5b58\u5728\u5f15\u64ce\u4e0d\u53ef\u5e8f\u5217\u5316\u7684\u60c5\u51b5\u3002<\/p>\n
\u5728\u7528\u6237\u5c42\u5b9e\u73b0\u5f15\u64ce\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528$this->engine->generate()\u65b9\u6cd5\u6765\u751f\u6210\u503c\u3002
\n\u800c\u672c\u5730\u5f15\u64ce\u5219\u4e0d\u53d7\u6b64\u9650\u5236\uff0c\u53ef\u4ee5\u4ee5\u66f4\u5feb\u7684\u65b9\u5f0f\u751f\u6210\u503c\u3002<\/p>\n
\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u6267\u884c\u73af\u5883\u4e2d\u91cd\u73b0\u7ed3\u679c\uff0c\u5e76\u4e14\u672a\u6765\u7684\u517c\u5bb9\u6027\u4e5f\u5f97\u5230\u4e86\u4fdd\u8bc1\u3002
\n\u4f46\u662f\uff0c\u5982\u679c\u572832\u4f4d\u73af\u5883\u4e2d\u4f7f\u7528\u751f\u6210\u5927\u4e8e32\u4f4d\u503c\u7684\u5f15\u64ce\u6765\u6267\u884cRandomizer::getInt()\uff0c\u5c06\u4f1a\u5f15\u53d1RuntimeException\u5f02\u5e38\u3002<\/p>\n
\u8fd9\u4e9b\u5f15\u64ce\u5b9e\u65bd\u4e86\u4e00\u4e9b\u5e38\u89c1\u7684\u968f\u673a\u6570\u53d1\u751f\u5668\u3002
\n\u5b83\u4eec\u4fdd\u8bc1\u5bf9\u4e8e\u7ed9\u5b9a\u7684\u79cd\u5b50\u503c\uff0c\u4f1a\u8fd4\u56de\u4e0e\u53c2\u8003\u5e8f\u5217\u76f8\u540c\u7684\u5e8f\u5217\u3002<\/p>\n
\u5728Randomizer\u4e2d\uff0c\u5f53\u53ef\u4ee5\u4ece\u5916\u90e8\u89c2\u5bdf\u5230\u7684\u503c\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u88ab\u8ba4\u4e3a\u662f\u7834\u574f\u6027\u53d8\u66f4\u3002
\n\u5bf9\u4e8e\u9644\u5e26\u7834\u574f\u6027\u53d8\u66f4\u7684\u89c4\u8303\u66f4\u6539\uff0c\u9700\u8981\u5355\u72ec\u7684RFC\u3002<\/p>\n
PRNG \u6bd4\u62fc\u968f\u673a\u6570\u751f\u6210\u7b97\u6cd5\u7684\u6bd4\u8f83\u3002<\/p>\n
\u7531\u4e8e\u524d\u8ff0\u7684\u95ee\u9898\uff0c\u6700\u597d\u56de\u907f\u4f7f\u7528MT19937\uff08\u6885\u68ee\u65cb\u8f6c\u5668\uff09\u3002<\/p>\n
\u5982\u679c\u8981\u5f15\u5165\u65b0\u7684RNG\u7b97\u6cd5\uff0c\u9009\u62e9\u662f\u5f88\u91cd\u8981\u7684\u3002
\n\u6211\u4eec\u8003\u8651\u7684\u7b97\u6cd5\u5982\u4e0b\u3002<\/p>\n
\n
\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0Generate sizeState sizePerformance\u554f\u984c\u5b9f\u88c5MT1993732-bit32-bit x 624Normal\u5e7e\u3064\u304b\u306e\u30c6\u30b9\u30c8\u306b\u843d\u3061\u308bPHP, Python, RubyXorShift128+64-bit64-bit x 2ExcellentBigCrush\u306b\u843d\u3061\u308bV8, SpiderMonkey, JavaScriptCoreXoshiro256++64-bit64-bit x 4Excellent, SIMD-frendly\u73fe\u72b6\u306a\u3057RustXoshiro256**64-bit64-bit x 4Excellent\u73fe\u72b6\u306a\u3057Rust, .NET 6.0PCG64 (XSL-RR)64-bit128-bit x 2Good\u73fe\u72b6\u306a\u3057Rust, NumPyMT19937\u548cXorShift128+\u662f\u5e7f\u6cdb\u4f7f\u7528\u7684\uff0c\u4f46\u4e5f\u5b58\u5728\u6d4b\u8bd5\u4e0d\u901a\u8fc7\u7684\u95ee\u9898\uff0c\u56e0\u6b64\u4e0d\u9002\u5408\u65b0\u7684\u4f7f\u7528\u3002
\n\u56e0\u6b64\uff0c\u6211\u4eec\u9009\u62e9\u4e86\u6700\u65b0\u7684PCG64\u7b97\u6cd5\uff0c\u5b83\u6ca1\u6709\u6d4b\u8bd5\u95ee\u9898\u3002<\/p>\n
\u9664\u4e86\u4e3a\u4e86\u4e92\u901a\u6027\u800c\u4fdd\u7559\u7684MT19937\u4ee5\u5916\uff0cPCG64\u662f\u552f\u4e00\u53ef\u5b9e\u73b0\u53ef\u91cd\u73b0\u6027\u7684\u968f\u673a\u6570\u751f\u6210\u5668\u3002<\/p>\n
\u7531\u4e8ePCG64\u4f7f\u7528128\u4f4d\u6574\u6570\uff0c\u65e0\u6cd5\u572832\u4f4d\u73af\u5883\u4e2d\u4ee5\u539f\u751f\u65b9\u5f0f\u5904\u7406\uff0c\u56e0\u6b64\u9700\u8981\u8fdb\u884c\u6a21\u62df\u3002\u4f46\u7531\u4e8e\u5df2\u7ecf\u5728\u5927\u591a\u6570\u73af\u5883\u4e2d\u4f7f\u752864\u4f4d\uff0c\u6240\u4ee5\u5e94\u8be5\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n
\u6211\u5011\u4e5f\u8003\u616e\u904eXoshiro256\uff0c\u4f46\u6700\u7d42\u9078\u64c7\u4e86PCG64\uff0c\u56e0\u70ba\u5b83\u5728\u8655\u7406\u63d0\u51fa\u7684\u554f\u984c\u4e0a\u4f3c\u4e4e\u662f\u6700\u5408\u9069\u7684\u3002<\/p>\n
\u6709\u95dc\u554f\u984c\u7684\u6307\u6458\u548c\u5c0d\u7b56\uff0c\u53ef\u4ee5\u5728\u4ee5\u4e0b\u7db2\u7ad9\u4e2d\u67e5\u770b\u3002<\/p>\n
https:\/\/pcg.di.unimi.it\/pcg.php \u7684\u5185\u5bb9\u8bf7\u79fb\u6b65\u8fd9\u4e2a\u94fe\u63a5\uff1ahttps:\/\/www.pcg-random.org\/posts\/on-vignas-pcg-critique.html<\/p>\n
\u6709\u8da3\u7684\u662f\uff0c\u8fd9\u4e9b\u7b97\u6cd5\u4e4b\u95f4\u6fc0\u70c8\u4e92\u76f8\u6279\u8bc4\u3002
\n\u4e24\u79cd\u89c2\u70b9\u90fd\u5e94\u53d7\u5230\u5c0a\u91cd\uff0c\u56e0\u6b64\u9009\u62e9\u975e\u5e38\u56f0\u96be\u3002<\/p>\n
\u6211\u4e5f\u8003\u8651\u8fc7\u540c\u65f6\u5b9e\u65bd\u4e24\u79cd\u65b9\u5f0f\uff0c\u4f46\u589e\u52a0\u4e0d\u5fc5\u8981\u7684\u9009\u9879\u53ea\u4f1a\u589e\u52a0\u6df7\u4e71\uff0c\u6240\u4ee5\u6211\u653e\u5f03\u4e86\u8fd9\u4e2a\u9009\u62e9\u3002
\n\u5982\u679c\u6709\u4eba\u89c9\u5f97\u9700\u8981\u7684\u8bdd\uff0c\u53ef\u4ee5\u901a\u8fc7\u6269\u5c55\u6a21\u5757\u7b49\u65b9\u5f0f\u8fdb\u884c\u589e\u52a0\u3002<\/p>\n
\u5185\u90e8\u53d8\u5316\u4ee5\u4e0b\u7684PHP\u51fd\u6570\u5df2\u8fc1\u79fb\u5230\u65b0\u5efa\u7684ext\/random\u6269\u5c55\u6a21\u5757\u4e2d\u3002<\/p>\n
\u30fblcg_value() -> \u7ebf\u6027\u540c\u4f59\u751f\u6210\u5668\u503c()
\n\u30fbsrand() -> \u8bbe\u7f6e\u968f\u673a\u79cd\u5b50()
\n\u30fbrand() -> \u751f\u6210\u968f\u673a\u6570()
\n\u30fbmt_srand() -> \u8bbe\u7f6e Mersenne Twister \u968f\u673a\u6570\u79cd\u5b50()
\n\u30fbmt_rand() -> \u751f\u6210 Mersenne Twister \u968f\u673a\u6570()
\n\u30fbrandom_int() -> \u751f\u6210\u968f\u673a\u6574\u6570()
\n\u30fbrandom_bytes() -> \u751f\u6210\u968f\u673a\u5b57\u8282()<\/p>\n
\u6b64\u5916\uff0c\u4ee5\u4e0b\u7684\u5185\u90e8API\u4e5f\u5c06\u88ab\u79fb\u52a8\u5230ext\/random\u6269\u5c55\u6a21\u5757\u4e2d\u3002<\/p>\n
– php_random_int_throw() – \u629b\u51fa PHP \u968f\u673a\u6574\u6570
\n– php_random_int_silent() – \u9759\u9ed8 PHP \u968f\u673a\u6574\u6570
\n– php_combined_lcg() – PHP \u7ec4\u5408\u7ebf\u6027\u540c\u4f59\u751f\u6210\u5668
\n– php_mt_srand() – PHP \u6885\u68ee\u65cb\u8f6c\u7b97\u6cd5\u79cd\u5b50\u521d\u59cb\u5316
\n– php_mt_rand() – PHP \u6885\u68ee\u65cb\u8f6c\u7b97\u6cd5\u4ea7\u751f\u968f\u673a\u6570
\n– php_mt_rand_range() – PHP \u6885\u68ee\u65cb\u8f6c\u7b97\u6cd5\u4ea7\u751f\u6307\u5b9a\u8303\u56f4\u5185\u7684\u968f\u673a\u6570
\n– php_mt_rand_common() – PHP \u6885\u68ee\u65cb\u8f6c\u7b97\u6cd5\u5e38\u7528\u968f\u673a\u6570\u751f\u6210
\n– php_srand() – PHP \u79cd\u5b50\u521d\u59cb\u5316
\n– php_rand() – PHP \u751f\u6210\u968f\u673a\u6570
\n– php_random_bytes() – PHP \u968f\u673a\u5b57\u8282\u751f\u6210
\n– php_random_int() – PHP \u968f\u673a\u6574\u6570\u751f\u6210<\/p>\n
\u4e3a\u4e86\u6807\u51c6\u5316RNG\uff0c\u6240\u6709\u4e0eRNG\u76f8\u5173\u7684\u5b9e\u73b0\u5c06\u88ab\u6574\u5408\u5230\u4e00\u4e2a\u65b0\u7684random\u6269\u5c55\u4e2d\u3002<\/p>\n
\u4ee5\u4e0b\u7684\u5934\u6587\u4ef6\u4fdd\u7559\u4e0b\u6765\u662f\u4e3a\u4e86\u6269\u5c55\u6a21\u5757\u7684\u517c\u5bb9\u6027\uff0c\u4f46\u5b9e\u9645\u4e0a\u5305\u542b\u7684\u662fext\/random\/php_random.h\u3002<\/p>\n
\u30fbext\/standard\/php_lcg.h – ext\/standard\/php_lcg.h \u662f\u4e00\u4e2a\u6587\u4ef6\u3002
\n\u30fbext\/standard\/php_rand.h – ext\/standard\/php_rand.h \u662f\u53e6\u4e00\u4e2a\u6587\u4ef6\u3002
\n\u30fbext\/standard\/php_mt_rand.h – \u540c\u6837\uff0cext\/standard\/php_mt_rand.h \u662f\u4e00\u4e2a\u6587\u4ef6\u3002
\n\u30fbext\/standard\/php_random.h – \u6700\u540e\u4e00\u4e2a\u6587\u4ef6\u662f ext\/standard\/php_random.h\u3002<\/p>\n
\u672a\u6765\u7684\u8303\u56f4\u8fd9\u90e8\u5206\u5185\u5bb9\u662f\u5173\u4e8e\u672a\u6765\u5c55\u671b\u7684\uff0c\u4e0d\u5305\u542b\u5728\u8fd9\u4e2aRFC\u4e2d\u3002<\/p>\n
\u30fb\u4e3a\u4e86\u4fdd\u6301\u517c\u5bb9\u6027\uff0c\u5220\u9664\u4fdd\u7559\u7684\u5934\u6587\u4ef6\u3002
\n\u30fb\u5c06lcg_value()\u3001mt_srand()\u3001srand()\u6807\u8bb0\u4e3a\u4e0d\u63a8\u8350\u4f7f\u7528\u3002<\/p>\n
\u4e0d\u517c\u5bb9\u5411\u540e\u7684\u6539\u53d8\u4e0d\u5177\u5907\u4e92\u6362\u6027\u7684\u6539\u53d8\u3002<\/p>\n
\u4ee5\u4e0b\u7684\u540d\u5b57\u5c06\u65e0\u6cd5\u4f7f\u7528\u3002<\/p>\n
– \u968f\u673a\u7684
\n– \u968f\u673a\u5f15\u64ce
\n– \u5b89\u5168\u968f\u673a\u5f15\u64ce
\n– \u53ef\u5e8f\u5217\u5316\u7684\u968f\u673a\u5f15\u64ce
\n– \u6df7\u5408\u7ebf\u6027\u540c\u4f59\u968f\u673a\u5f15\u64ce
\n– \u6885\u68ee\u65cb\u8f6c\u968f\u673a\u5f15\u64ce
\n– PCG64\u968f\u673a\u5f15\u64ce
\n– \u5b89\u5168\u968f\u673a\u5f15\u64ce
\n– \u968f\u673a\u53d1\u751f\u5668<\/p>\n
\u5efa\u8bae\u7684 PHP \u7248\u672cPHP8.2\u53ef\u4ee5\u76f4\u63a5\u5728\u4e2d\u56fd\u5883\u5185\u8bbf\u95ee<\/p>\n
\u6295\u7968\u6295\u7968\u65e5\u7a0b\u4e3a2022\u5e746\u670814\u65e5\u81f32022\u5e746\u670828\u65e5\uff0c\u53ea\u9700\u8981\u83b7\u5f97\u9009\u6c11\u4e09\u5206\u4e4b\u4e8c\u7684\u8d5e\u6210\u5373\u53ef\u88ab\u63a5\u53d7\u3002<\/p>\n
\u8fd9\u4e2aRFC\u88ab\u5168\u4f53\u4e00\u81f4\u901a\u8fc7\uff0c\u8d5e\u6210\u796821\u7968\uff0c\u53cd\u5bf9\u79680\u7968\u3002<\/p>\n
\u8865\u4e01\u548c\u6d4b\u8bd5 <\/p>\n
\u5fc3\u5f97\u901a\u8fc7\u8fd9\u4e2a\u6539\u8fdb\uff0cPHP\u4e5f\u53ef\u4ee5\u4f7f\u7528\u53ef\u91cd\u73b0\u6027\u7684\u968f\u673a\u6570\u3002\u4e2a\u4eba\u800c\u8a00\uff0c\u6211\u4ece\u672a\u5199\u8fc7\u4f9d\u8d56\u53ef\u91cd\u73b0\u6027\u968f\u673a\u6570\u7684\u5904\u7406\uff0c\u6240\u4ee5\u4e0d\u592a\u4e86\u89e3\uff0c\u4f46\u5bf9\u4e8e\u50cf\u6e38\u620f\u7b49\u9700\u8981\u53ef\u91cd\u73b0\u6027\u7684\u5904\u7406\u6765\u8bf4\uff0c\u8fd9\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u56e0\u7d20\u3002<\/p>\n
\u6b64\u5916\uff0c\u7531\u4e8e\u6b64RFC\uff0c\u539f\u672cPHP\u5b58\u5728\u7684\u5404\u79cd\u4e0e\u968f\u673a\u6027\u76f8\u5173\u7684\u95ee\u9898\u4e5f\u5c06\u88ab\u5f7b\u5e95\u89e3\u51b3\u3002\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6ca1\u6709\u4eba\u4f1a\u518d\u8bf4PHP\u7684\u968f\u673a\u6570\u6709\u95ee\u9898\u4e86\u3002<\/p>\n
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