{"id":47078,"date":"2024-12-02T16:22:56","date_gmt":"2024-12-02T08:22:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47078\/"},"modified":"2024-12-02T16:22:56","modified_gmt":"2024-12-02T08:22:56","slug":"%e5%8c%bf%e5%90%8d%e5%87%bd%e6%95%b0%e4%b8%8e%e9%97%ad%e5%8c%85%e5%9c%a8-php-%e4%b8%ad%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47078\/","title":{"rendered":"\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b<\/h1>\n<p>\u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729864837671ba485af3f0.jpg\" class=\"aligncenter\" title=\"\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b\u63d2\u56fe\" alt=\"\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b\u63d2\u56fe\" \/><\/p>\n<p><strong>\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b<\/strong><\/p>\n<p><strong>\u533f\u540d\u51fd\u6570<\/strong><\/p>\n<ul>\n<li>\u533f\u540d\u51fd\u6570\u6ca1\u6709\u540d\u79f0\uff0c\u4f7f\u7528 <code>function()<\/code> \u8bed\u6cd5\u5b9a\u4e49\u3002<\/li>\n<li>\u53ea\u80fd\u7528\u4e8e\u4e00\u6b21\u6027\u64cd\u4f5c\u3002<\/li>\n<li>\u4e0d\u80fd\u901a\u8fc7\u51fd\u6570\u540d\u79f0\u8c03\u7528\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<pre>$sum = function($a, $b) { return $a + $b; };\necho $sum(1, 2); \/\/ \u8f93\u51fa\uff1a3<\/pre>\n<p><strong>\u95ed\u5305<\/strong><\/p>\n<ul>\n<li>\u95ed\u5305\u662f\u533f\u540d\u7684\u53ef\u8c03\u7528\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>function()<\/code> \u6216 <code>fn()<\/code> \u8bed\u6cd5\u5b9a\u4e49\u3002<\/li>\n<li>\u53ef\u4ee5\u95ed\u5408\u5916\u90e8\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u5e76\u5728\u7528\u4f8b\u4e4b\u5916\u91cd\u65b0\u8c03\u7528\u3002<\/li>\n<li>\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u5f15\u7528\u6216\u95ed\u5305\u53e5\u67c4\u8c03\u7528\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<pre>$multiplier = fn($a) =&gt; $a * 2;\n$result = $multiplier(5); \/\/ \u8f93\u51fa\uff1a10\n\n\/\/ \u540e\u7eed\u8c03\u7528\n$newResult = $multiplier(10); \/\/ \u8f93\u51fa\uff1a20<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u4f7f\u7528\u533f\u540d\u51fd\u6570\u6392\u5e8f\u6570\u7ec4<\/strong><\/p>\n<pre>$data = [1, 3, 2, 5, 4];\n\nusort($data, function($a, $b) {\n    return $a - $b;\n});\n\n\/\/ \u6392\u5e8f\u540e\u7684\u6570\u7ec4\uff1a\nvar_dump($data); \/\/ [1, 2, 3, 4, 5]<\/pre>\n<p><strong>\u4f7f\u7528\u95ed\u5305\u4fdd\u5b58\u8ba1\u6570\u5668<\/strong><\/p>\n<pre>$count = 0;\n\n$increment = fn() =&gt; ++$count;\n\n$increment(); \/\/ \u589e\u52a0\u8ba1\u6570\u5668\uff0ccount = 1\n$increment(); \/\/ \u589e\u52a0\u8ba1\u6570\u5668\uff0ccount = 2<\/pre>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u95ed\u5305,\u533f\u540d\u51fd\u6570\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b \u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002 \u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305\u5728 PHP \u4e2d\u7684\u533a\u522b \u533f\u540d\u51fd\u6570 \u533f\u540d\u51fd\u6570\u6ca1\u6709\u540d\u79f0\uff0c\u4f7f\u7528 function() \u8bed\u6cd5\u5b9a\u4e49\u3002 \u53ea\u80fd\u7528\u4e8e\u4e00\u6b21\u6027\u64cd\u4f5c\u3002 \u4e0d\u80fd\u901a\u8fc7\u51fd\u6570\u540d\u79f0\u8c03\u7528\u3002 \u793a\u4f8b $sum = function($a, $b) { return $a + $b; }; echo $sum(1, 2); \/\/ \u8f93\u51fa\uff1a3 \u95ed\u5305 \u95ed\u5305\u662f\u533f\u540d\u7684\u53ef\u8c03\u7528\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528 function() \u6216 fn() \u8bed\u6cd5\u5b9a\u4e49\u3002 \u53ef\u4ee5\u95ed\u5408\u5916\u90e8\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u5e76\u5728\u7528\u4f8b\u4e4b\u5916\u91cd\u65b0\u8c03\u7528\u3002 \u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u5f15\u7528\u6216\u95ed\u5305\u53e5\u67c4\u8c03\u7528\u3002 \u793a\u4f8b $multiplier = fn($a) =&gt; $a * 2; $result = $multiplier(5); \/\/ \u8f93\u51fa\uff1a10 \/\/ \u540e\u7eed\u8c03\u7528 $newResult [&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-47078","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47078","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=47078"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47078\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}