{"id":170,"date":"2023-08-01T11:58:08","date_gmt":"2023-08-01T03:58:08","guid":{"rendered":"https:\/\/mianka.xyz\/?p=170"},"modified":"2023-08-01T12:00:24","modified_gmt":"2023-08-01T04:00:24","slug":"php-key","status":"publish","type":"post","link":"https:\/\/www.mianka.xyz\/?p=170","title":{"rendered":"php \u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u6307\u5b9akey\u8fdb\u884c\u6b63\u5e8f\u548c\u5012\u5e8f\u6392\u5e8f"},"content":{"rendered":"<p><span style=\"text-wrap: nowrap;\">\u5728PHP\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528array_multisort()\u51fd\u6570\u6765\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u8981\u6839\u636e\u6307\u5b9a\u7684\u952e\u8fdb\u884c\u6b63\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528SORT_ASC\u5e38\u91cf\u4f5c\u4e3a\u6392\u5e8f\u987a\u5e8f\u53c2\u6570\u3002\u8981\u6839\u636e\u6307\u5b9a\u7684\u952e\u8fdb\u884c\u5012\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528SORT_DESC\u5e38\u91cf\u4f5c\u4e3a\u6392\u5e8f\u987a\u5e8f\u53c2\u6570\u3002<\/span><\/p>\n<p><span style=\"text-wrap: nowrap;\"><br \/><\/span><\/p>\n<p><span style=\"text-wrap: nowrap;\">\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u8fdb\u884c\u6b63\u5e8f\u548c\u5012\u5e8f\u6392\u5e8f<\/span><\/p>\n<p><span style=\"text-wrap: nowrap;\"><\/span><\/p>\n<pre class=\"prism-highlight prism-language-php\">\/\/&nbsp;\u4e8c\u7ef4\u6570\u7ec4\n$students&nbsp;=&nbsp;array(\n&nbsp;&nbsp;&nbsp;&nbsp;array(&#39;name&#39;&nbsp;=&gt;&nbsp;&#39;John&#39;,&nbsp;&#39;age&#39;&nbsp;=&gt;&nbsp;20),\n&nbsp;&nbsp;&nbsp;&nbsp;array(&#39;name&#39;&nbsp;=&gt;&nbsp;&#39;Alice&#39;,&nbsp;&#39;age&#39;&nbsp;=&gt;&nbsp;18),\n&nbsp;&nbsp;&nbsp;&nbsp;array(&#39;name&#39;&nbsp;=&gt;&nbsp;&#39;Bob&#39;,&nbsp;&#39;age&#39;&nbsp;=&gt;&nbsp;22)\n);\n\/\/&nbsp;\u6839\u636e&nbsp;&#39;age&#39;&nbsp;\u952e\u8fdb\u884c\u6b63\u5e8f\u6392\u5e8f\narray_multisort(array_column($students,&nbsp;&#39;age&#39;),&nbsp;SORT_ASC,&nbsp;$students);\n\/\/&nbsp;\u8f93\u51fa\u6b63\u5e8f\u6392\u5e8f\u7ed3\u679c\nforeach&nbsp;($students&nbsp;as&nbsp;$student)&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;$student[&#39;name&#39;]&nbsp;.&nbsp;&#39;,&nbsp;&#39;&nbsp;.&nbsp;$student[&#39;age&#39;]&nbsp;.&nbsp;&#39;&lt;br&gt;&#39;;\n}\necho&nbsp;&#39;&lt;br&gt;&#39;;\n\/\/&nbsp;\u6839\u636e&nbsp;&#39;age&#39;&nbsp;\u952e\u8fdb\u884c\u5012\u5e8f\u6392\u5e8f\narray_multisort(array_column($students,&nbsp;&#39;age&#39;),&nbsp;SORT_DESC,&nbsp;$students);\n\/\/&nbsp;\u8f93\u51fa\u5012\u5e8f\u6392\u5e8f\u7ed3\u679c\nforeach&nbsp;($students&nbsp;as&nbsp;$student)&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;$student[&#39;name&#39;]&nbsp;.&nbsp;&#39;,&nbsp;&#39;&nbsp;.&nbsp;$student[&#39;age&#39;]&nbsp;.&nbsp;&#39;&lt;br&gt;&#39;;\n}<\/pre>\n<p>\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u4f60\u5c06\u5f97\u5230\u4ee5\u4e0b\u8f93\u51fa\uff1a<span style=\"text-wrap: nowrap;\"><\/span><\/p>\n<pre class=\"prism-highlight prism-language-bash\">Alice,&nbsp;18\nJohn,&nbsp;20\nBob,&nbsp;22\n\nBob,&nbsp;22\nJohn,&nbsp;20\nAlice,&nbsp;18<\/pre>\n<p>\u5728\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0carray_column()\u51fd\u6570\u7528\u4e8e\u63d0\u53d6\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u6307\u5b9a\u952e\u7684\u503c\uff0c\u4ee5\u4fbf\u5728array_multisort()\u51fd\u6570\u4e2d\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p><span style=\"text-wrap: nowrap;\">\u5728PHP\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528array_multisort()\u51fd\u6570\u6765\u5bf9\u4e8c\u7ef4\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u8981\u6839\u636e\u6307\u5b9a\u7684\u952e\u8fdb\u884c\u6b63\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528SORT_ASC\u5e38\u91cf\u4f5c\u4e3a\u6392\u5e8f\u987a\u5e8f\u53c2\u6570\u3002\u8981\u6839\u636e\u6307\u5b9a\u7684\u952e\u8fdb\u884c\u5012\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528SORT_DESC\u5e38\u91cf\u4f5c\u4e3a\u6392\u5e8f\u987a\u5e8f\u53c2\u6570\u3002<\/span><\/p>\n<p><span style=\"text-wrap: nowrap;\"><br \/><\/span><\/p>\n<p><span style=\"text-wrap: nowrap;\"><\/span><\/p>\n<p><!--autointro--><\/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":[9,11],"class_list":["post-170","post","type-post","status-publish","format-standard","hentry","category-phpbiji","tag-php","tag-post-1776407685"],"_links":{"self":[{"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=\/wp\/v2\/posts\/170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=170"}],"version-history":[{"count":0,"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=\/wp\/v2\/posts\/170\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mianka.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}