{"id":202371,"date":"2025-05-10T13:28:21","date_gmt":"2025-05-10T05:28:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202371\/"},"modified":"2025-05-10T13:28:21","modified_gmt":"2025-05-10T05:28:21","slug":"%e6%80%8e%e4%b9%88%e7%94%a8phpredis%e8%a7%a3%e5%86%b3%e9%ab%98%e5%b9%b6%e5%8f%91%e4%b8%8b%e5%95%86%e5%93%81%e8%b6%85%e5%8d%96%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202371\/","title":{"rendered":"\u600e\u4e48\u7528PHP+Redis\u89e3\u51b3\u9ad8\u5e76\u53d1\u4e0b\u5546\u54c1\u8d85\u5356\u95ee\u9898"},"content":{"rendered":"

<\/b> <\/p>\n

\u600e\u4e48\u7528PHP+Redis\u89e3\u51b3\u9ad8\u5e76\u53d1\u4e0b\u5546\u54c1\u8d85\u5356\u95ee\u9898<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300a\u600e\u4e48\u7528PHP+Redis\u89e3\u51b3\u9ad8\u5e76\u53d1\u4e0b\u5546\u54c1\u8d85\u5356\u95ee\u9898\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n

\u5bf9\u4e8e\u4e00\u4e9b\u6709\u4e00\u5b9a\u7528\u6237\u91cf\u7684\u7535\u5546\u7f51\u7ad9\uff0c\u5982\u679c\u53ea\u662f\u5355\u7eaf\u7684\u4f7f\u7528\u5173\u7cfb\u578b\u6570\u636e\u5e93(\u5982MySQL\u3001Oracle)\u6765\u505a\u62a2\u8d2d\uff0c\u5bf9\u6570\u636e\u5e93\u7684\u538b\u529b\u662f\u975e\u5e38\u5927\u7684\uff0c\u800c\u4e14\u5982\u679c\u4e0d\u4f7f\u7528\u597d\u6570\u636e\u5e93\u7684\u9501\u673a\u5236\uff0c\u8fd8\u4f1a\u5bfc\u81f4\u5546\u54c1\u3001\u4f18\u60e0\u5238\u8d85\u5356\u7684\u95ee\u9898\u3002\u6211\u6240\u5728\u7684\u516c\u53f8\u4e5f\u9047\u5230\u4e86\u540c\u6837\u7684\u95ee\u9898\uff0c\u95ee\u9898\u53d1\u751f\u5728\u4f18\u60e0\u5238\u88ab\u8d85\u91cf\u62a2\u8d2d\u4e0a\uff0c\u5728\u95ee\u9898\u53d1\u751f\u540e\u6211\u4eec\u5f00\u59cb\u60f3\u529e\u6cd5\u89e3\u51b3\u95ee\u9898\uff0c\u7531\u4e8e\u81ea\u5df1\u4f7f\u7528redis\u6bd4\u8f83\u591a\uff0c\u6211\u51c6\u5907\u4f7f\u7528redis\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u5229\u7528redis\u7684\u9ad8\u6027\u80fd\u548c\u4e8b\u52a1\u7279\u6027\u6765\u89e3\u51b3\u7ebf\u4e0a\u4f18\u60e0\u5238\u88ab\u8d85\u5e93\u5b58\u62a2\u8d2d\u7684\u95ee\u9898\uff0c\u4e0b\u9762\u6211\u7ed9\u51fa\u6211\u4e34\u65f6\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u7b2c\u4e00\u7248\u7684\u4f2a\u4ee3\u7801\uff0c\u53bb\u6389\u4e86\u4e00\u4e9b\u7ec6\u8282\uff1a<\/p>\n

\/**\n * \u62a2\u4f18\u60e0\u5238(\u79d2\u6740)\n * @param int $couponId \u5546\u54c1ID\n * @param int $uid \u7528\u6237ID\n * @return bool\n *\/\nfunction secKill($couponId, $uid)\n{\n    \/\/1.\u521d\u59cb\u5316Redis\u8fde\u63a5\n    $redis = new Redis();\n    if (!$redis->connect('127.0.0.1', 6379)) {\n        trigger_error('Redis\u8fde\u63a5\u51fa\u9519\uff01\uff01\uff01', E_USER_ERROR);\n    } else {\n        echo '\u8fde\u63a5\u6b63\u5e38<br>';\n    }\n\n    \/\/\u79d2\u6740\u5546\u54c1\u7684\u5e93\u5b58key\n    $key = 'secKill:'.$couponId.':stock';\n    $redis->watch($key);\n\n    \/\/\u83b7\u53d6\u5e93\u5b58\n    $stock = $redis->get($key);\n\n    \/\/\u79d2\u6740\u672a\u5f00\u59cb\uff0c\u8868\u793a\u5e93\u5b58\u4e3anull\n    if (!$stock && !is_numeric($stock)) {\n        echo '\u79d2\u6740\u672a\u5f00\u59cb';\n        return false;\n    }\n\n    \/\/\u5224\u65ad\u5e93\u5b58\uff0c\u5982\u679c\u5e93\u5b58\u5927\u4e8e0\uff0c\u5219\u51cf\u5e93\u5b58\uff0c\u5c06\u8be5\u6210\u529f\u79d2\u6740\u7528\u6237\u52a0\u5165\u54c8\u5e0c\u8868\uff0c\u5982\u679c\u5c0f\u4e8e\u7b49\u4e8e0\uff0c\u79d2\u6740\u7ed3\u675f\n    if ($stock <= 0) {\n        echo '\u79d2\u6740\u5df2\u7ed3\u675f';\n        return false;\n    }\n\n    \/\/\u7528\u6237\u5df2\u7ecf\u6210\u529f\u79d2\u6740\u8fc7\u4e00\u6b21\u4e86\uff0c\u4e0d\u5141\u8bb8\u518d\u6b21\u53c2\u4e0e\u79d2\u6740\n    if ($redis->sIsMember('secKill:'.$couponId.':uid', $uid)) {\n        echo '\u79d2\u6740\u5931\u8d25';\n        return false;\n    }\n\n    \/\/\u4ee3\u7801\u8d70\u5230\u8fd9\u91cc\uff0c\u8bf4\u660e\u8be5\u7528\u6237\u662f\u7b2c\u4e00\u6b21\u53c2\u4e0e\u79d2\u6740\uff0c\u5c06\u5e93\u5b58\u51cf\u4e00\uff0c\u7136\u540e\u628a\u8fd9\u4e2a\u4eba\u653e\u5230\u5df2\u62a2\u5230\u7684\u96c6\u5408\u8868\n    $redisMulti = $redis->multi();\n    $redisMulti->decr($key);\n    $redisMulti->sAdd('secKill:'.$couponId.':uid', $uid);\n    $result = $redisMulti->exec();\n\n    if (empty($result)) {\/\/\u4e8b\u52a1\u88ab\u53d6\u6d88\n        echo '\u79d2\u6740\u5931\u8d25';\n        return false;\n    }\n\n    \/\/\u62a2\u5238\u6210\u529f\uff0c\u5c06\u4f18\u60e0\u5238ID\u548cUID\u653e\u5165\u5230\u961f\u5217\u4e2d\uff0c\u7531\u4e00\u4e2a\u5355\u72ec\u7684\u8fdb\u7a0b\u961f\u5217\u6765\u6d88\u8d39\u961f\u5217\u91cc\u7684\u6570\u636e\uff0c\u5411\u7528\u6237\u63a8\u9001\u62a2\u5230\u7684\u4f18\u60e0\u5238\n    $redis->lPush('couponOrder', $couponId.'+'.$uid);\n\n    return true;\n}\n\n$couponId = 11211;\n$uid      = mt_rand(1, 100);\nsecKill($couponId, $uid);<\/pre>\n
\u9996\u5148\uff0c\u6211\u6a21\u62df\u8bbe\u7f6e\u4f18\u60e0\u5238ID\u4e3a11211\u7684\u4f18\u60e0\u5238\u5e93\u5b58\u4e3a10\u4e2a\u3002<\/p>\n
<\/p>\n
\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528ab\u5de5\u5177\u6765\u6a21\u62df1000\u6b21\u8bf7\u6c42\uff0c50\u5e76\u53d1\u91cf\u6765\u6d4b\u8bd5<\/p>\n
ab -n 1000 -c 50 www.test.com\/<\/pre>\n
\u7136\u540e\u6211\u4eec\u901a\u8fc7Redis Desktop Manager\u6765\u67e5\u770b\u4e00\u4e9bRedis\u7684\u7ed3\u679c<\/p>\n
couponOrder\u961f\u5217\u91cc\u5df2\u7ecf\u6709\u4e8610\u4e2a\u7528\u6237\u7684\u4fe1\u606f\u4e86<\/p>\n
<\/p>\n
\u5e76\u4e14\u4f18\u60e0\u5238\u7684\u5269\u4f59\u6570\u91cf\u4e5f\u662f0\u4e86\uff0c\u4e0d\u518d\u662f\u8d1f\u6570\u4e86<\/p>\n
<\/p>\n
\u540c\u65f6\uff0c\u7528\u6237\u62a2\u5238\u96c6\u5408\u91cc\u4e5f\u4fdd\u5b58\u4e8610\u4e2a\u7528\u6237\u7684UID\u4fe1\u606f\u3002<\/p>\n
<\/p>\n
\u4e0a\u9762\u8fd9\u4e32\u4ee3\u7801\u89e3\u51b3\u4e86\u4e24\u4e2a\u95ee\u9898\uff1a<\/p>\n
    \n
  • \n
    \u89e3\u51b3\u4e86\u77ac\u65f6\u7684\u5927\u91cf\u67e5\u8be2\u5230\u6570\u636e\u5e93\u4e0a\u7ed9\u6570\u636e\u5e93\u9020\u6210\u5f88\u5927\u538b\u529b\u7684\u95ee\u9898\uff0c\u6d41\u91cf\u90fd\u88ab\u62e6\u622a\u5728\u4e86redis\u7f13\u5b58\u5c42<\/p>\n<\/li>\n
  • \n
    \u89e3\u51b3\u4e86\u4f18\u60e0\u5238\u88ab\u8d85\u5e93\u5b58\u62a2\u8d2d\u7684\u95ee\u9898<\/p>\n<\/li>\n<\/ul>\n
    \u4f46\u662f\uff0c\u8fd9\u6bb5\u4ee3\u7801\u4e5f\u5b58\u5728\u4e00\u5b9a\u7684\u95ee\u9898:<\/p>\n
      \n
    1. \n
      \u6ca1\u6709\u4f7f\u7528redis\u8fde\u63a5\u6c60\uff0c\u9891\u7e41\u521b\u5efa\u65b0\u7684redis\u6709\u4e00\u5b9a\u7684\u6027\u80fd\u5f71\u54cd<\/p>\n<\/li>\n
    2. \n
      \u7531\u4e8e\u4f7f\u7528\u4e86\u4e8b\u52a1\uff0c\u6bcf\u4e00\u6b21\u5e76\u53d1\u8bf7\u6c42\u4e2d\u53ea\u4f1a\u6709\u4e00\u4e2a\u7528\u6237\u62a2\u5238\u6210\u529f\uff0c\u8be5\u5e76\u53d1\u8bf7\u6c42\u4e2d\u7684\u5176\u5b83\u7528\u6237\u90fd\u4f1a\u5931\u8d25\uff0c\u53ea\u80fd\u7b49\u7b2c\u4e8c\u6b21\u5e76\u53d1<\/p>\n<\/li>\n
    3. \n
      \u540c\u6837\u8fd8\u662f\u4e8b\u52a1\u5bfc\u81f4\u7684\u5e93\u5b58\u9057\u7559\u95ee\u9898\uff0c\u5982\u679c\u670910\u4e2a\u5546\u54c1\uff0c1000\u6b21\u8bf7\u6c42\u6bcf\u6b21200\u5e76\u53d1\u91cf\uff0c5\u6b21\u5e76\u53d1\u8bf7\u6c42\u5c31\u5b8c\u6210\u4e861000\u6b21\u8bf7\u6c42\uff0c\u4f46\u662f\u53ea\u4f1a\u67095\u4e2a\u7528\u6237\u6210\u529f\u62a2\u5230\uff0c\u5982\u679c\u6ca1\u6709\u540e\u7eed\u7684\u8bf7\u6c42\uff0c\u4f1a\u5bfc\u81f4\u5e93\u5b58\u8fd8\u67095\u4efd\u5b58\u91cf<\/p>\n<\/li>\n<\/ol>\n
      \u63d0\u793a\uff1a\u5728\u6d88\u8d39\u961f\u5217\u91cc\uff0c\u5982\u679c\u4f18\u60e0\u5238\u53d1\u653e\u5931\u8d25\uff0c\u4e00\u5b9a\u8981\u7acb\u5373\u8bb0\u5f55\u5e76\u77ed\u4fe1\u901a\u77e5\u8fd0\u8425\u7ba1\u7406\u4eba\u5458\uff0c\u770b\u770b\u662f\u5426\u80fd\u91cd\u53d1\u6216\u8005\u901a\u8fc7\u540e\u53f0\u624b\u52a8\u5b9a\u5411\u63a8\u9001\u7ed9\u7528\u6237\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u600e\u4e48\u7528PHP+Redis\u89e3\u51b3\u9ad8\u5e76...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-202371","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202371"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202371\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}