{"id":48155,"date":"2024-12-02T14:09:39","date_gmt":"2024-12-02T06:09:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48155\/"},"modified":"2024-12-02T14:09:39","modified_gmt":"2024-12-02T06:09:39","slug":"php-%e5%8c%bf%e5%90%8d%e5%87%bd%e6%95%b0%e7%9a%84%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48155\/","title":{"rendered":"PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>\u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\uff1a\u51cf\u5c11\u6355\u83b7\u53d8\u91cf\u6570\u91cf\u3002\u4f7f\u7528\u9759\u6001\u53d8\u91cf\u4fdd\u6301\u6301\u7eed\u72b6\u6001\uff0c\u51cf\u5c11\u95ed\u5305\u521b\u5efa\u3002\u521b\u5efa\u53ef\u91cd\u7528\u7684\u95ed\u5305\uff0c\u907f\u514d\u91cd\u590d\u521b\u5efa\u3002\u7f13\u5b58\u590d\u6742\u95ed\u5305\uff0c\u51cf\u5c11\u521b\u5efa\u5f00\u9500\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729993550671d9b4e5879f.jpg\" class=\"aligncenter\" title=\"PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u63d2\u56fe\" alt=\"PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7<\/strong><\/p>\n<p>\u533f\u540d\u51fd\u6570\uff0c\u4e5f\u79f0\u4e3a\u95ed\u5305\uff0c\u662f\u5728 PHP \u4ee3\u7801\u4e2d\u5b9a\u4e49\u7684\u65e0\u540d\u51fd\u6570\u3002\u5b83\u4eec\u901a\u5e38\u7528\u4e8e\u521b\u5efa\u4e00\u6b21\u6027\u56de\u8c03\u6216\u8f85\u52a9\u51fd\u6570\uff0c\u53ef\u7b80\u5316\u4ee3\u7801\u5e76\u63d0\u9ad8\u53ef\u8bfb\u6027\u3002\u7136\u800c\uff0c\u6267\u884c\u533f\u540d\u51fd\u6570\u65f6\u53ef\u80fd\u4f1a\u5b58\u5728\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<p><strong>\u6027\u80fd\u74f6\u9888<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u5f71\u54cd\u533f\u540d\u51fd\u6570\u6027\u80fd\u7684\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u6355\u83b7\u53d8\u91cf\uff1a<\/strong>\u533f\u540d\u51fd\u6570\u6355\u83b7\u5916\u90e8\u4f5c\u7528\u57df\u7684\u53d8\u91cf\u65f6\uff0c\u5c06\u5176\u521b\u5efa\u4e3a\u95ed\u5305\u5bf9\u8c61\uff0c\u4ece\u800c\u589e\u52a0\u5185\u5b58\u5f00\u9500\u548c\u6267\u884c\u65f6\u95f4\u3002<\/li>\n<li><strong>\u91cd\u590d\u521b\u5efa\uff1a<\/strong>\u6bcf\u6b21\u8c03\u7528\u533f\u540d\u51fd\u6570\u65f6\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u95ed\u5305\u5b9e\u4f8b\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002<\/li>\n<\/ul>\n<p><strong>\u4f18\u5316\u6280\u5de7<\/strong><\/p>\n<p><strong>1. \u51cf\u5c11\u6355\u83b7\u53d8\u91cf<\/strong><\/p>\n<p>\u5c3d\u53ef\u80fd\u51cf\u5c11\u533f\u540d\u51fd\u6570\u6355\u83b7\u7684\u53d8\u91cf\u6570\u91cf\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u5f15\u7528\uff08<code>&amp;<\/code>\uff09\u4f20\u9012\u53d8\u91cf\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>$counter = 0;\n$increment = function () use (&amp;$counter) {\n    $counter++;\n};<\/pre>\n<p><strong>2. \u4f7f\u7528\u9759\u6001\u53d8\u91cf<\/strong><\/p>\n<p>\u5bf9\u4e8e\u9700\u8981\u6301\u7eed\u72b6\u6001\u7684\u533f\u540d\u51fd\u6570\uff0c\u53ef\u4ee5\u5229\u7528\u9759\u6001\u53d8\u91cf\u6765\u51cf\u5c11\u95ed\u5305\u521b\u5efa\u7684\u6b21\u6570\uff1a<\/p>\n<pre>$counter = 0;\n$increment = function () {\n    static $counter = 0;\n    $counter++;\n};<\/pre>\n<p><strong>3. \u521b\u5efa\u53ef\u91cd\u7528\u7684\u95ed\u5305<\/strong><\/p>\n<p>\u5982\u679c\u533f\u540d\u51fd\u6570\u9700\u8981\u591a\u6b21\u8c03\u7528\uff0c\u5219\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u53ef\u91cd\u7528\u7684\u95ed\u5305\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\uff1a<\/p>\n<pre>$closure = function () { ... }; \/\/ \u521b\u5efa\u95ed\u5305\n$closure(); \/\/ \u591a\u6b21\u8c03\u7528<\/pre>\n<p><strong>4. \u7f13\u5b58\u95ed\u5305<\/strong><\/p>\n<p>\u5bf9\u4e8e\u88ab\u9891\u7e41\u8c03\u7528\u7684\u590d\u6742\u95ed\u5305\uff0c\u53ef\u4ee5\u8003\u8651\u5c06\u5176\u7f13\u5b58\u5230\u5185\u5b58\u6216\u6587\u4ef6\u4e2d\uff0c\u4ee5\u51cf\u5c11\u521b\u5efa\u95ed\u5305\u7684\u5f00\u9500\uff1a<\/p>\n<pre>$cacheFile = 'closure.cache';\nif (file_exists($cacheFile)) {\n    $closure = unserialize(file_get_contents($cacheFile));\n} else {\n    $closure = function () { ... };\n    file_put_contents($cacheFile, serialize($closure));\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8fd9\u4e9b\u4f18\u5316\u6280\u5de7\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8 PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\uff0c\u4f7f\u7528\u9759\u6001\u53d8\u91cf\u6765\u51cf\u5c11\u95ed\u5305\u521b\u5efa\u53ef\u4ee5\u8282\u7701\u5927\u91cf\u5f00\u9500\uff1a<\/p>\n<pre>$data = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);\n$sum = array_reduce($data, function ($carry, $item) {\n    static $sum = 0;\n    $sum += $item;\n    return $sum;\n});<\/pre>\n<p>\u901a\u8fc7\u5c06 <code>$sum<\/code> \u58f0\u660e\u4e3a\u9759\u6001\u53d8\u91cf\uff0c\u6211\u4eec\u53ef\u4ee5\u6d88\u9664\u6bcf\u6b21\u8c03\u7528\u533f\u540d\u51fd\u6570\u65f6\u95ed\u5305\u7684\u521b\u5efa\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aPHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7 \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aPHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6587\u7ae0\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01 \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\uff1a\u51cf\u5c11\u6355\u83b7\u53d8\u91cf\u6570\u91cf\u3002\u4f7f\u7528\u9759\u6001\u53d8\u91cf\u4fdd\u6301\u6301\u7eed\u72b6\u6001\uff0c\u51cf\u5c11\u95ed\u5305\u521b\u5efa\u3002\u521b\u5efa\u53ef\u91cd\u7528\u7684\u95ed\u5305\uff0c\u907f\u514d\u91cd\u590d\u521b\u5efa\u3002\u7f13\u5b58\u590d\u6742\u95ed\u5305\uff0c\u51cf\u5c11\u521b\u5efa\u5f00\u9500\u3002 PHP \u533f\u540d\u51fd\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7 \u533f\u540d\u51fd\u6570\uff0c\u4e5f\u79f0\u4e3a\u95ed\u5305\uff0c\u662f\u5728 PHP \u4ee3\u7801\u4e2d\u5b9a\u4e49\u7684\u65e0\u540d\u51fd\u6570\u3002\u5b83\u4eec\u901a\u5e38\u7528\u4e8e\u521b\u5efa\u4e00\u6b21\u6027\u56de\u8c03\u6216\u8f85\u52a9\u51fd\u6570\uff0c\u53ef\u7b80\u5316\u4ee3\u7801\u5e76\u63d0\u9ad8\u53ef\u8bfb\u6027\u3002\u7136\u800c\uff0c\u6267\u884c\u533f\u540d\u51fd\u6570\u65f6\u53ef\u80fd\u4f1a\u5b58\u5728\u6027\u80fd\u95ee\u9898\u3002 \u6027\u80fd\u74f6\u9888 \u4ee5\u4e0b\u662f\u5f71\u54cd\u533f\u540d\u51fd\u6570\u6027\u80fd\u7684\u56e0\u7d20\uff1a \u6355\u83b7\u53d8\u91cf\uff1a\u533f\u540d\u51fd\u6570\u6355\u83b7\u5916\u90e8\u4f5c\u7528\u57df\u7684\u53d8\u91cf\u65f6\uff0c\u5c06\u5176\u521b\u5efa\u4e3a\u95ed\u5305\u5bf9\u8c61\uff0c\u4ece\u800c\u589e\u52a0\u5185\u5b58\u5f00\u9500\u548c\u6267\u884c\u65f6\u95f4\u3002 \u91cd\u590d\u521b\u5efa\uff1a\u6bcf\u6b21\u8c03\u7528\u533f\u540d\u51fd\u6570\u65f6\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u95ed\u5305\u5b9e\u4f8b\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002 \u4f18\u5316\u6280\u5de7 1. \u51cf\u5c11\u6355\u83b7\u53d8\u91cf \u5c3d\u53ef\u80fd\u51cf\u5c11\u533f\u540d\u51fd\u6570\u6355\u83b7\u7684\u53d8\u91cf\u6570\u91cf\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u5f15\u7528\uff08&amp;\uff09\u4f20\u9012\u53d8\u91cf\uff0c\u5982\u4e0b\u6240\u793a\uff1a $counter = 0; $increment = function () use (&amp;$counter) { $counter++; }; 2. \u4f7f\u7528\u9759\u6001\u53d8\u91cf \u5bf9\u4e8e\u9700\u8981\u6301\u7eed\u72b6\u6001\u7684\u533f\u540d\u51fd\u6570\uff0c\u53ef\u4ee5\u5229\u7528\u9759\u6001\u53d8\u91cf\u6765\u51cf\u5c11\u95ed\u5305\u521b\u5efa\u7684\u6b21\u6570\uff1a $counter = 0; $increment = function () { static $counter = 0; $counter++; }; 3. \u521b\u5efa\u53ef\u91cd\u7528\u7684\u95ed\u5305 \u5982\u679c\u533f\u540d\u51fd\u6570\u9700\u8981\u591a\u6b21\u8c03\u7528\uff0c\u5219\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u53ef\u91cd\u7528\u7684\u95ed\u5305\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\uff1a $closure = function () { [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-48155","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=48155"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48155\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}