{"id":1677,"date":"2022-09-18T17:04:14","date_gmt":"2022-09-18T09:04:14","guid":{"rendered":"https:\/\/www.siediyer.cn\/?p=1677"},"modified":"2022-09-18T17:04:14","modified_gmt":"2022-09-18T09:04:14","slug":"%e5%9c%a8-php-%e4%b8%ad%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e5%ad%97%e6%af%8d%e6%95%b0%e5%ad%97%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/www.siediyer.cn\/?p=1677","title":{"rendered":"\u5728 PHP \u4e2d\u751f\u6210\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32"},"content":{"rendered":"

\u5728 PHP \u4e2d\u751f\u6210\u968f\u673a\u6570\u6709\u4e09\u79cd\u4e0d\u540c\u7684\u51fd\u6570\u3002\u5b83\u4eec\u90fd\u5c06\u63a5\u53d7\u968f\u673a\u6570\u7684\u6700\u5c0f\u548c\u6700\u5927\u53ef\u80fd\u503c\uff0c\u5e76\u4e3a\u60a8\u8f93\u51fa\u4e00\u4e2a\u968f\u673a\u6570\u3002\u5b83\u4eec\u662f\u00a0rand($min, $max)<\/code>\u3001\u00a0mt_rand($min, $max)<\/code>\u548c\u00a0random_int($min, $max)<\/code>\u3002<\/p>\n

\u4f7f\u7528\u00a0rand()<\/code>\uff0c\u60a8\u53ef\u4ee5\u751f\u6210\u7684\u6574\u6570\u7684\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u4ecb\u4e8e\u00a00<\/code>\u00a0\u548c \u8fd4\u56de\u7684\u503c\u00a0\u4e4b\u95f4getrandmax()<\/code>\u3002\u5728 PHP 7.1.0 \u4e4b\u524d\uff0c\u8fd9\u4e2a\u51fd\u6570\u6bd4\u00a0mt_rand()<\/code>. \u4f46\u662f\uff0c\u4ece PHP 7.1.0 \u5f00\u59cb\uff0c\u5b83\u5df2\u6210\u4e3a\u00a0mt_rand()<\/code>. \u4f46\u662f\uff0c\u4e0e \u4e0d\u540c\u00a0mt_rand()<\/code>\u7684\u662f\uff0c\u60a8\u53ef\u4ee5\u5c06 \u7684\u503c\u8bbe\u7f6e\u00a0$max<\/code>\u00a0\u4e3a\u4f4e\u4e8e\u800c\u00a0$min<\/code>\u00a0\u4e0d\u4f1a\u5bfc\u81f4\u9519\u8bef\u3002<\/p>\n

\u4f7f\u7528\u00a0mt_rand()<\/code>\uff0c\u60a8\u53ef\u4ee5\u751f\u6210\u7684\u6574\u6570\u7684\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u4ecb\u4e8e\u00a00<\/code>\u00a0\u548c \u8fd4\u56de\u7684\u503c\u00a0\u4e4b\u95f4mt_getrandmax()<\/code>\u3002\u5b83\u4f9d\u8d56\u4e8e Mersenne Twister \u7684\u5b9e\u73b0\u6765\u751f\u6210\u968f\u673a\u6570\u3002\u4f46\u8bf7\u6ce8\u610f\u2014\u2014\u5728 PHP 7.1.0 \u4e4b\u524d\uff0c\u8be5\u51fd\u6570\u5b9e\u73b0\u4e86\u9519\u8bef\u7248\u672c\u7684\u7b97\u6cd5\u6765\u751f\u6210\u6570\u5b57\u3002\u4f46\u662f\uff0c\u5b83\u5df2\u5728\u8f83\u65b0\u7684\u7248\u672c\u4e2d\u5f97\u5230\u4fee\u590d\u3002<\/p>\n

\u5728 PHP 7.2.0 \u4e2d\uff0c\u901a\u8fc7\u6d88\u9664\u6a21\u504f\u5dee\u9519\u8bef\uff0c\u8be5\u529f\u80fd\u53d8\u5f97\u66f4\u597d\u3002\u8fd9\u610f\u5473\u7740\u5bf9\u4e8e\u67d0\u4e9b\u7279\u5b9a\u7684\u79cd\u5b50\uff0c\u4e0e\u65e7\u7248\u672c\u76f8\u6bd4\uff0c\u60a8\u7684\u968f\u673a\u6570\u5e8f\u5217\u73b0\u5728\u4f1a\u7a0d\u5fae\u597d\u4e00\u4e9b\u3002\u4e0d\u8fc7\uff0c\u4e00\u4e9b\u4e13\u95e8\u7684\u4ee3\u7801\u5b9e\u9645\u4e0a\u53ef\u80fd\u4f9d\u8d56\u4e8e\u8fd9\u79cd\u504f\u89c1\u3002\u5982\u679c\u662f\u8fd9\u6837\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528\u00a0mt_srand()<\/code>\u00a0\u51fd\u6570\u6765\u4e3a\u968f\u673a\u6570\u751f\u6210\u5668\u64ad\u79cd\u5e76\u00a0MT_RAND_PHP<\/code>\u00a0\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7684\u503c\u4f20\u9012\u6765\u4f7f\u7528\u8f83\u65e7\u7684\u79cd\u5b50\u7b97\u6cd5\u3002<\/p>\n

\u8be5\u00a0mt_rand()<\/code>\u00a0\u51fd\u6570\u7684\u5468\u671f\u4e3a 2\u00a019937<\/sup>\u00a0-1\uff0c\u8fd9\u57fa\u672c\u4e0a\u610f\u5473\u7740\u5728\u6700\u4f73\u60c5\u51b5\u4e0b\uff0c\u60a8\u4f1a\u5728\u5e8f\u5217\u5f00\u59cb\u91cd\u590d\u4e4b\u524d\u83b7\u5f97\u591a\u8fbe 2 \u4e2a19937 -1 \u7684\u968f\u673a\u6570\u3002<\/sup>\u60a8\u5e94\u8be5\u6ce8\u610f\uff0c\u5e8f\u5217\u7684\u91cd\u590d\u4e0e\u7279\u5b9a\u6570\u5b57\u7684\u91cd\u590d\u4e0d\u540c\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u60a8\u53ef\u80fd\u4f1a\u4e24\u6b21\u83b7\u5f97\u76f8\u540c\u7684\u968f\u673a\u6570\uff0c\u4f46\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u5e8f\u5217\u672c\u8eab\u5df2\u7ecf\u5f00\u59cb\u91cd\u590d\u3002\u4ee5\u4e0b\u5e8f\u5217\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n

187 3276 1267 15 1267 34598 3467 125 17<\/pre>\n
\u5728\u4e0a\u9762\u7684\u5e8f\u5217\u4e2d\uff0c\u6211\u4eec\u5728\u8f93\u51fa\u4e2d\u6709\u4e24\u6b21 1267\uff0c\u4f46\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u6574\u4e2a\u5e8f\u5217\u5728\u90a3\u4e4b\u540e\u5f00\u59cb\u91cd\u590d\u3002\u4e0d\u592a\u53ef\u80fd\u5982\u6b64\u5feb\u5730\u4ee5\u968f\u673a\u987a\u5e8f\u91cd\u590d\u76f8\u540c\u7684\u6570\u5b57\uff0c\u4f46\u8fd9\u662f\u53ef\u80fd\u7684\uff01<\/p>\n
\u5bc6\u7801\u5b89\u5168\u7684\u968f\u673a\u6574\u6570<\/h3>\n
\u5982\u679c\u4f60\u60f3\u8981\u52a0\u5bc6\u5b89\u5168\u7684\u4f2a\u968f\u673a\u6570\uff0c\u00a0\u00a0random_int()<\/code>\u00a0PHP \u4e2d\u7684\u51fd\u6570\u662f\u4f60\u6700\u597d\u7684\u9009\u62e9\u3002\u5b83\u5c06\u5728\u63d0\u4f9b\u7684\u00a0$min<\/code>\u00a0\u548c\u00a0$max<\/code>\u00a0\u503c\u4e4b\u95f4\u751f\u6210\u968f\u673a\u6570\uff0c\u9ed8\u8ba4\u4e3a\u00a0PHP_INT_MIN<\/code>\u00a0\u548c\u00a0PHP_INT_MAX<\/code>\u3002\u4e0d\u5e78\u7684\u662f\uff0c\u6b64\u529f\u80fd\u4ec5\u4ece PHP 7.0 \u5f00\u59cb\u53ef\u7528\u3002\u5bf9\u4e8e\u4e4b\u524d\u7684\u7248\u672c\uff0c\u4f60\u53ef\u4ee5\u5728 GitHub \u4e0a\u4f7f\u7528\u8fd9\u4e2a polyfill\u3002<\/p>\n
\u968f\u673a\u6d6e\u70b9\u6570<\/h3>\n
\u60a8\u53ef\u80fd\u8fd8\u60f3\u751f\u6210\u6d6e\u70b9\u6570\uff0c\u800c\u4e0d\u662f\u751f\u6210\u968f\u673a\u6574\u6570\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u5730\u5c06\u968f\u673a\u6570\u9664\u4ee5\u8fd4\u56de\u7684\u503c\u6765\u8f7b\u677e\u5b8c\u6210\u00a0mt_getrandmax()<\/code>\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c06\u8bf4\u660e\u5982\u4f55\u751f\u6210\u4ecb\u4e8e 0 \u548c 1 \u4e4b\u95f4\u6216\u4efb\u4f55\u5176\u4ed6\u6700\u5c0f\u548c\u6700\u5927\u9650\u5236\u4e4b\u95f4\u7684\u968f\u673a\u6d6e\u70b9\u6570\u3002<\/p>\n
<?php\r\n\r\n\/\/ Output: 0.69458310943776\r\necho mt_rand(0, mt_getrandmax())\/mt_getrandmax();\r\n\r\nfunction mt_random_float($min, $max) {\r\n    $float_part = mt_rand(0, mt_getrandmax())\/mt_getrandmax();\r\n    $integer_part = mt_rand($min, $max - 1);\r\n    return $integer_part + $float_part;\r\n}\r\n\r\n\/\/ Output: 10.199064863938\r\necho mt_random_float(10, 11);\r\n\r\n\/\/ Output: 35.540808309121\r\necho mt_random_float(15, 50);\r\n\r\n?><\/pre>\n
\u5728\u7ed9\u5b9a\u9650\u5236\u4e4b\u95f4\u751f\u6210\u968f\u673a\u6d6e\u70b9\u6570\u65f6\uff0c\u6211\u4eec\u786e\u4fdd\u968f\u673a\u6574\u6570\u4e0d\u8d85\u8fc7\u00a0$max - 1<\/code>. \u8fd9\u6837\uff0c\u6211\u4eec\u53ef\u4ee5\u786e\u5b9a\u6dfb\u52a0\u6d6e\u70b9\u90e8\u5206\u4e0d\u4f1a\u4f7f\u6570\u5b57\u8d85\u8fc7\u6700\u5927\u9650\u5236\u3002<\/p>\n
\u64ad\u79cd\u968f\u673a\u6570\u751f\u6210\u5668<\/h3>\n
\u4e00\u4e2a\u9700\u8981\u4e00\u70b9\u89e3\u91ca\u7684\u6982\u5ff5\u662f\u79cd\u5b50\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u8fd9\u4e9b\u53ea\u662f\u53ef\u7528\u4e8e\u00a0\u00a0\u5728\u751f\u6210\u4efb\u4f55\u968f\u673a\u6570\u4e4b\u524d\u521d\u59cb\u5316rand()<\/code>\u00a0and\u00a0\u51fd\u6570\u7684\u6570\u5b57\u3002mt_rand()<\/code>\u8c03\u7528\u79cd\u5b50\u00a0\u7684\u51fd\u6570\uff0crand()<\/code>\u00a0\u8c03\u7528\u00a0\u79cd\u5b50\u00a0\u7684\u00a0srand($seed)<\/code>\u51fd\u6570\u00a0\u3002mt_rand()<\/code>mt_srand($seed, $mode)<\/code><\/p>\n
\u91cd\u8981\u7684\u662f\u8981\u8bb0\u4f4f\uff0c\u5728\u8c03\u7528\u4e4b\u524d\u6bcf\u6b21\u90fd\u63d0\u4f9b\u4e00\u4e2a\u521d\u59cb\u79cd\u5b50\u503c\u00a0rand()<\/code>\u00a0\uff0c\u00a0mt_rand()<\/code>\u00a0\u4e0d\u4e00\u5b9a\u4f1a\u4ea7\u751f\u66f4\u597d\u7684\u968f\u673a\u6570\u3002\u4e8b\u5b9e\u4e0a\uff0c\u6bcf\u6b21\u4f7f\u7528\u76f8\u540c\u7684\u79cd\u5b50\u4e5f\u4f1a\u5f97\u5230\u76f8\u540c\u7684\u968f\u673a\u6570\uff01<\/p>\n
<?php\r\n\r\nmt_srand(10);\r\n\/\/ Output: 1656398468\r\necho mt_rand();\r\n\r\nmt_srand(10);\r\n\/\/ Output: 1656398468\r\necho mt_rand();\r\n\r\nmt_srand(10);\r\n\/\/ Output: 1656398468\r\necho mt_rand();\r\n\r\n?><\/pre>\n
\u5728\u60a8\u60f3\u8981\u751f\u6210\u968f\u673a\u4f46\u53ef\u91cd\u73b0\u7684\u5e8f\u5217\u7684\u60c5\u51b5\u4e0b\uff0c\u64ad\u79cd\u968f\u673a\u6570\u5f88\u6709\u7528\u3002\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u5728\u8fd0\u884c\u4e24\u6b21\u65f6\u4f1a\u751f\u6210\u76f8\u540c\u7684\u968f\u673a\u6570\u5e8f\u5217\u3002<\/p>\n
<?php\r\n\r\nmt_srand(10);\r\n\r\n$count = 0;\r\n\r\nwhile($count < 10) {\r\n    echo mt_rand(0, 100).\" \";\r\n    $count++;\r\n}\r\n\r\n\/\/ Output on First Run:\r\n\/\/ 68 58 68 13 3 48 30 37 96 82\r\n\r\n\/\/ Output on Second Run:\r\n\/\/ 68 58 68 13 3 48 30 37 96 82<\/pre>\n
\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u751f\u6210\u53ef\u91cd\u73b0\u7684\u968f\u673a\u5e8f\u5217\u53ef\u4ee5\u5e2e\u52a9\u8c03\u8bd5\u6b63\u5728\u4f7f\u7528\u968f\u673a\u6570\u636e\u8fdb\u884c\u6d4b\u8bd5\u7684\u7a0b\u5e8f\u2014\u2014\u5982\u679c\u60a8\u8ddf\u8e2a\u79cd\u5b50\uff0c\u60a8\u53ef\u4ee5\u91cd\u73b0\u76f8\u540c\u7684\u8f93\u5165\u4ee5\u627e\u51fa\u95ee\u9898\u6240\u5728\u3002<\/p>\n
\u5728 PHP \u4e2d\u751f\u6210\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32<\/h2>\n
\u6709\u5f88\u591a\u65b9\u6cd5\u53ef\u4ee5\u751f\u6210\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32\uff0c\u60a8\u4f7f\u7528\u4ec0\u4e48\u5c06\u53d6\u51b3\u4e8e\u60a8\u7684\u9700\u8981\u3002<\/p>\n
\u751f\u6210\u552f\u4e00 ID<\/h3>\n
\u5982\u679c\u60a8\u53ea\u662f\u60f3\u751f\u6210\u4e00\u4e2a\u552f\u4e00\u7684\u5b57\u7b26\u4e32\u5e76\u4e14\u5b83\u4e0d\u5fc5\u662f\u52a0\u5bc6\u5b89\u5168\u7684\uff0c\u90a3\u4e48\u8bf7\u8003\u8651\u4f7f\u7528\u8be5\u00a0uniqid()<\/code>\u00a0\u51fd\u6570\u3002\u5b83\u6839\u636e\u5f53\u524d\u65f6\u95f4\u6233\u8fd4\u56de\u4e00\u4e2a\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/p>\n
\u8be5\u51fd\u6570\u8fd8\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\u6765\u6dfb\u52a0\u524d\u7f00\u6216\u589e\u52a0\u751f\u6210\u5b57\u7b26\u4e32\u7684\u71b5\u3002\u4ee5\u4e0b\u662f\u5b83\u7684\u4e00\u4e9b\u4f8b\u5b50\uff1a<\/p>\n
<?php\r\n\r\n\/\/ Output: 5fa7f46962f25\r\necho uniqid();\r\n\r\n\/\/ Output: user_5fa7f46962f3a\r\necho uniqid('user_');\r\n\r\n\/\/ Output: user_5fa7f46962f3d4.76070232\r\necho uniqid('user_', true);\r\n\r\n?><\/pre>\n
\u751f\u6210\u6df7\u6d17\u5b57\u7b26\u4e32<\/h3>\n
\u5982\u679c\u8981\u4ece\u4e00\u7ec4\u56fa\u5b9a\u5b57\u7b26\u751f\u6210\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u4f7f\u7528\u8be5\u00a0str_shuffle($string)<\/code>\u00a0\u51fd\u6570\u3002\u6b64\u51fd\u6570\u5c06\u4e3a\u60a8\u63d0\u4f9b\u4e00\u4e2a\u968f\u673a\u6253\u4e71\u7684\u5b57\u7b26\u4e32\u3002\u4ece PHP 7.1 \u5f00\u59cb\uff0c\u786e\u5b9a\u8f93\u51fa\u5b57\u7b26\u4e32\u4e2d\u5b57\u7b26\u968f\u673a\u987a\u5e8f\u7684\u7b97\u6cd5\u5df2\u66f4\u6539\u4e3a Mersenne Twister\u3002<\/p>\n
\u8bf7\u8bb0\u4f4f\uff0c\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u751f\u6210\u7684\u968f\u673a\u5b57\u7b26\u4e32\u5728\u5bc6\u7801\u5b66\u4e0a\u662f\u4e0d\u5b89\u5168\u7684\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e\u751f\u6210\u968f\u673a\u6587\u4ef6\u540d\u6216 URL \u7b49\u5e38\u89c1\u7528\u9014\uff0c\u8be5\u5b57\u7b26\u4e32\u4ecd\u7136\u975e\u5e38\u4e0d\u53ef\u9884\u6d4b\u3002\u8fd9\u91cc\u6709\u4e00\u4e9b\u4f8b\u5b50\uff1a<\/p>\n
<?php\r\n\r\n$permitted_chars = '0123456789abcdefghijklmnopqrstuvwxyz';\r\n\/\/ Output: 54esmdr0qf\r\necho substr(str_shuffle($permitted_chars), 0, 10);\r\n\r\n$permitted_chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';\r\n\/\/ Output: video-g6swmAP8X5VG4jCi.mp4\r\necho 'video-'.substr(str_shuffle($permitted_chars), 0, 16).'.mp4';\r\n\r\n?><\/pre>\n
\u5728\u8fd9\u4e24\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u7684\u8f93\u51fa\u5f88\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002\u5728\u7b2c\u4e00\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ea\u662f\u6253\u4e71\u4e86\u5141\u8bb8\u7684\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u53d6\u51fa\u5b83\u7684\u524d 10 \u4e2a\u5b57\u7b26\u3002\u5728\u7b2c\u4e8c\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5728\u751f\u6210\u7684\u5b57\u7b26\u4e32\u7684\u5f00\u5934\u6dfb\u52a0\u4e86\u201cvideo\u201d\uff0c\u5728\u672b\u5c3e\u6dfb\u52a0\u4e86\u201c.mp4\u201d\u3002<\/p>\n
\u8fd9\u79cd\u751f\u6210\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u4f46\u5b83\u6709\u51e0\u4e2a\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u60a8\u6c38\u8fdc\u4e0d\u4f1a\u5728\u968f\u673a\u5b57\u7b26\u4e32\u4e2d\u4e24\u6b21\u83b7\u5f97\u76f8\u540c\u7684\u5b57\u7b26\u3002\u6b64\u5916\uff0c\u968f\u673a\u8f93\u51fa\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u53ea\u80fd\u4e0e\u8f93\u5165\u5b57\u7b26\u4e32\u4e00\u6837\u957f\u3002<\/p>\n
\u751f\u6210\u968f\u673a\u5b57\u7b26\u4e32<\/h3>\n
\u5982\u679c\u6211\u4e0a\u9762\u5217\u51fa\u7684\u95ee\u9898\u662f\u4e00\u4e2a\u4ea4\u6613\u7834\u574f\u8005\uff0c\u4f60\u53ef\u80fd\u60f3\u770b\u770b\u5176\u4ed6\u4e00\u4e9b\u5b9e\u73b0\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u5c06\u89e3\u51b3\u8fd9\u4e24\u4e2a\u95ee\u9898\u3002<\/p>\n
<?php\r\n\r\n$permitted_chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';\r\n\r\nfunction generate_string($input, $strength = 16) {\r\n    $input_length = strlen($input);\r\n    $random_string = '';\r\n    for($i = 0; $i < $strength; $i++) {\r\n        $random_character = $input[mt_rand(0, $input_length - 1)];\r\n        $random_string .= $random_character;\r\n    }\r\n\r\n    return $random_string;\r\n}\r\n\r\n\/\/ Output: iNCHNGzByPjhApvn7XBD\r\necho generate_string($permitted_chars, 20);\r\n\r\n\/\/ Output: 70Fmr9mOlGID7OhtTbyj\r\necho generate_string($permitted_chars, 20);\r\n\r\n\/\/ Output: Jp8iVNhZXhUdSlPi1sMNF7hOfmEWYl2UIMO9YqA4faJmS52iXdtlA3YyCfSlAbLYzjr0mzCWWQ7M8AgqDn2aumHoamsUtjZNhBfU\r\necho generate_string($permitted_chars, 100);\r\n\r\n?><\/pre>\n
\u60a8\u53ef\u4ee5\u4fee\u6539\u5b83\u4ee5\u5411\u751f\u6210\u7684\u968f\u673a\u5b57\u7b26\u4e32\u6dfb\u52a0\u7279\u5b9a\u7684\u540e\u7f00\u548c\u524d\u7f00\u3002\u4f7f\u7528 PHP 7 \u7684\u4eba\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u52a0\u5bc6\u5b89\u5168\u51fd\u6570\u00a0random_int()<\/code>\u00a0\u800c\u4e0d\u662f\u00a0mt_rand()<\/code>.<\/p>\n
\u751f\u6210\u968f\u673a\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32<\/h3>\n
\u5982\u679c\u8981\u5728 PHP \u4e2d\u751f\u6210\u968f\u673a\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u00a0md5($string, $raw_output)<\/code>\u00a0\u6216\u00a0sha1($string, $raw_output)<\/code>\u00a0\u51fd\u6570\u3002\u5b83\u4eec\u90fd\u5c06\u751f\u6210\u7ed9\u5b9a\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u54c8\u5e0c\u503c\u3002<\/p>\n
\u53ea\u8981\u8f93\u5165\u662f\u552f\u4e00\u7684\uff0c\u60a8\u5c31\u4f1a\u4e0d\u65ad\u83b7\u5f97\u552f\u4e00\u7684\u54c8\u5e0c\u503c\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u7c7b\u4f3c\u51fd\u6570\u7684\u8f93\u51fa\u00a0time()<\/code>\u00a0\u4f5c\u4e3a\u8f93\u5165\u6765\u5b9e\u73b0\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u00a0md5()<\/code>\u00a0\u5c06\u8fd4\u56de\u4e00\u4e2a 32 \u4e2a\u5b57\u7b26\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\uff0c\u00a0sha1()<\/code>\u00a0\u5e76\u5c06\u8fd4\u56de\u4e00\u4e2a 40 \u4e2a\u5b57\u7b26\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u3002substr()<\/code>\u00a0\u53ef\u4ee5\u4f7f\u7528\u8be5\u529f\u80fd\u5c06\u5b83\u4eec\u4fee\u526a\u4e3a\u7279\u5b9a\u957f\u5ea6\u00a0\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u8fd9\u4e9b\u51fd\u6570\u8fd4\u56de\u7684\u8f93\u51fa\u793a\u4f8b\uff1a<\/p>\n
<?php\r\n\r\n\/\/ Output: 36e5e490f14b031e\r\necho substr(md5(time()), 0, 16);\r\n\r\n\/\/ Output: aa88ef597c77a5b3\r\necho substr(sha1(time()), 0, 16);\r\n\r\n\/\/ Output: 447c13ce896b820f353bec47248675b3\r\necho md5(time());\r\n\r\n\/\/ Output: 6c2cef9fe21832a232da7386e4775654b77c7797\r\necho sha1(time());\r\n\r\n?><\/pre>\n
\u5982\u60a8\u6240\u89c1\uff0c\u5728 PHP \u4e2d\u751f\u6210\u6700\u957f 40 \u4e2a\u5b57\u7b26\u7684\u968f\u673a\u4e14\u552f\u4e00\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u975e\u5e38\u5bb9\u6613\u3002<\/p>\n
\u751f\u6210\u52a0\u5bc6\u5b89\u5168\u7684\u968f\u673a\u5b57\u7b26\u4e32<\/h3>\n
\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u8ba8\u8bba\u7684\u751f\u6210\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32\u7684\u4e09\u4e2a\u51fd\u6570\u5728\u5bc6\u7801\u5b66\u4e0a\u5e76\u4e0d\u5b89\u5168\u3002\u5e78\u8fd0\u7684\u662f\uff0cPHP \u8fd8\u6709\u4e00\u4e2a\u51fd\u6570\u8c03\u7528\u00a0random_bytes($length)<\/code>\u00a0\u6765\u751f\u6210\u52a0\u5bc6\u5b89\u5168\u7684\u4f2a\u968f\u673a\u5b57\u8282\u3002\u8be5\u00a0$length<\/code>\u00a0\u53c2\u6570\u786e\u5b9a\u8f93\u51fa\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/p>\n
\u4e00\u65e6\u83b7\u5f97\u4e86\u968f\u673a\u5b57\u8282\u7684\u8f93\u51fa\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u8be5\u00a0bin2hex()<\/code>\u00a0\u51fd\u6570\u5c06\u5b83\u4eec\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u503c\u3002\u8fd9\u5c06\u4f7f\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u52a0\u500d\u3002<\/p>\n
<?php\r\n\r\n\/\/ Output: b7b33efa07915b60ad55\r\necho bin2hex(random_bytes(10));\r\n\r\n\/\/ Output: a2e6cb1f25616324c8a11a2cceb0b47c590949ea\r\necho bin2hex(random_bytes(20));\r\n\r\n\/\/ Output: 25af3b86e11884ef5e8ef70a0ad06cba81b89ed6af3781a0\r\necho bin2hex(random_bytes(24));\r\n\r\n?><\/pre>\n
\u53e6\u4e00\u4e2a\u53ef\u7528\u4e8e\u751f\u6210\u52a0\u5bc6\u5b89\u5168\u968f\u673a\u5b57\u8282\u7684\u51fd\u6570\u662f\u00a0openssl_random_pseudo_bytes($length, &$crypto_strong)<\/code>. \u7b2c\u4e8c\u4e2a\u53c2\u6570\u7684\u503c\u53ef\u7528\u4e8e\u786e\u5b9a\u662f\u5426\u5c06\u4f7f\u7528\u52a0\u5bc6\u5b89\u5168\u7b97\u6cd5\u751f\u6210\u8f93\u51fa\u5b57\u7b26\u4e32\u3002<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528\u8be5\u00a0bin2hex()<\/code>\u00a0\u51fd\u6570\u5c06\u6700\u7ec8\u503c\u4f5c\u4e3a\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u63d0\u4f9b\u7ed9\u6211\u4eec\u3002\u5982\u679c\u51fa\u4e8e\u67d0\u79cd\u539f\u56e0\uff0c\u60a8\u60f3\u8981\u4e00\u4e2a\u4f7f\u7528\u4ece a \u5230 z \u7684\u6240\u6709\u5b57\u7b26\u7684\u52a0\u5bc6\u5b89\u5168\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32\uff0c\u60a8\u5e94\u8be5\u8003\u8651\u4f7f\u7528\u4ee5\u4e0b\u51fd\u6570\u3002<\/p>\n
<?php\r\n\r\nfunction secure_random_string($length) {\r\n    $random_string = '';\r\n    for($i = 0; $i < $length; $i++) {\r\n        $number = random_int(0, 36);\r\n        $character = base_convert($number, 10, 36);\r\n        $random_string .= $character;\r\n    }\r\n\r\n    return $random_string;\r\n}\r\n\r\n\/\/ Output: 07y1s10prb8\r\necho secure_random_string(10);\r\n\r\n\/\/ Output: d9bcwoo7pc\r\necho secure_random_string(10);\r\n\r\n\/\/ Output: 6llfxe4pvm\r\necho secure_random_string(10);\r\n\r\n?><\/pre>\n
\u6211\u4eec\u4e0a\u9762\u7f16\u5199\u7684\u00a0secure_random_string()<\/code>\u00a0\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u53c2\u6570\uff0c\u8be5\u53c2\u6570\u786e\u5b9a\u6211\u4eec\u5e0c\u671b\u5b83\u8fd4\u56de\u7684\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002\u6211\u4eec\u8fd0\u884c\u4e00\u4e2a\u00a0for<\/code>\u00a0\u5faa\u73af\uff0c\u751f\u6210\u4e00\u4e2a 0 \u5230 36 \u8303\u56f4\u5185\u7684\u968f\u673a\u6574\u6570\u3002\u4e4b\u540e\uff0c\u6211\u4eec\u4f7f\u7528\u51fd\u6570\u5c06\u6211\u4eec\u7684\u6570\u5b57\u4ece\u4ee5 10 \u4e3a\u5e95\u8f6c\u6362\u4e3a\u4ee5 36 \u4e3a\u5e95\u00a0base_convert()<\/code>\u00a0\u3002\u751f\u6210\u7684\u5b57\u7b26\u53ef\u4ee5\u662f\u4ece\u6570\u5b57 0 \u5230 9 \u4ee5\u53ca\u5b57\u7b26 a \u5230 z \u7684\u4efb\u4f55\u5b57\u7b26\u3002\u6211\u4eec\u5c06\u5b83\u9644\u52a0\u5728\u968f\u673a\u5b57\u7b26\u4e32\u7684\u672b\u5c3e\u3002\u6700\u540e\uff0c\u6211\u4eec\u8fd4\u56de\u5b8c\u6574\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n
\u6700\u540e\u7684\u60f3\u6cd5<\/h2>\n
\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u7814\u7a76\u4e86 PHP \u4e2d\u968f\u673a\u6570\u548c\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32\u7684\u751f\u6210\u3002\u751f\u6210\u968f\u673a\u6570\u5728\u5404\u79cd\u60c5\u51b5\u4e0b\u90fd\u5f88\u6709\u7528\uff0c\u4f8b\u5982\u5728\u6e38\u620f\u4e2d\u4f60\u5fc5\u987b\u751f\u6210\u654c\u65b9\u73a9\u5bb6\u6216\u968f\u673a\u7ed9\u7528\u6237\u4e00\u4e9b\u5173\u4e8e\u5b57\u6bcd\u7684\u7ebf\u7d22\uff0c\u4ee5\u4fbf\u4ed6\u4eec\u53ef\u4ee5\u7ec4\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u5355\u8bcd\u3002<\/p>\n
\u5c31\u50cf\u968f\u673a\u6570\u4e00\u6837\uff0c\u968f\u673a\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4e32\u7684\u751f\u6210\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\u4e5f\u5f88\u6709\u5e2e\u52a9\u3002\u5728 \u7684\u5e2e\u52a9\u4e0b\u00a0str_shuffle()<\/code>\uff0c\u60a8\u53ef\u4ee5\u9009\u62e9\u968f\u673a\u5b57\u7b26\u4e32\u4e2d\u51fa\u73b0\u7684\u5b57\u7b26\u96c6\u3002\u4f7f\u7528\u00a0sha1()<\/code>\u00a0\u548c\u00a0md5()<\/code>\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u751f\u6210\u968f\u673a\u5341\u516d\u8fdb\u5236\u5e8f\u5217\uff0c\u5e76\u4e14\u00a0random_bytes()<\/code>\u00a0\u53ef\u4ee5\u751f\u6210\u52a0\u5bc6\u5b89\u5168\u5b57\u7b26\u4e32\u3002\u8fd9\u5c06\u5141\u8bb8\u60a8\u751f\u6210\u6709\u610f\u4e49\u4f46\u968f\u673a\u7684\u6587\u4ef6\u540d\u548c\u96be\u4ee5\u731c\u6d4b\u7684\u7528\u6237\u540d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728 PHP \u4e2d\u751f\u6210\u968f\u673a\u6570\u6709\u4e09\u79cd\u4e0d\u540c\u7684\u51fd\u6570\u3002\u5b83\u4eec\u90fd\u5c06\u63a5\u53d7\u968f\u673a\u6570\u7684\u6700\u5c0f\u548c\u6700\u5927\u53ef\u80fd\u503c\uff0c\u5e76\u4e3a\u60a8\u8f93\u51fa\u4e00\u4e2a\u968f\u673a\u6570\u3002\u5b83\u4eec\u662f\u00a0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1677","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1677"}],"version-history":[{"count":1,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1677\/revisions"}],"predecessor-version":[{"id":1678,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1677\/revisions\/1678"}],"wp:attachment":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}