{"id":47994,"date":"2024-12-02T16:54:33","date_gmt":"2024-12-02T08:54:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47994\/"},"modified":"2024-12-02T16:54:33","modified_gmt":"2024-12-02T08:54:33","slug":"php-%e5%87%bd%e6%95%b0%e4%b8%ad%e5%bc%95%e7%94%a8%e5%8f%82%e6%95%b0%e5%9c%a8%e5%87%bd%e6%95%b0%e5%9b%9e%e8%b0%83%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47994\/","title":{"rendered":"PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528<\/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 \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528\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>\u5f15\u7528\u53c2\u6570\u5728 PHP \u51fd\u6570\u4e2d\u901a\u8fc7\u7b26\u53f7 &#8220;&amp;&#8221; \u58f0\u660e\uff0c\u5141\u8bb8\u51fd\u6570\u76f4\u63a5\u4fee\u6539\u4f20\u9012\u7ed9\u5b83\u7684\u53d8\u91cf\u3002\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u65f6\uff0c\u56de\u8c03\u51fd\u6570\u53ef\u4ee5\u64cd\u7eb5\u4f20\u9012\u7ed9\u5b83\u7684\u53c2\u6570\uff0c\u4ece\u800c\u5b9e\u73b0\u52a8\u6001\u884c\u4e3a\u548c\u6539\u53d8\u53d8\u91cf\u503c\u3002\u5b9e\u6218\u6848\u4f8b\u5305\u62ec\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u4f7f\u56de\u8c03\u51fd\u6570\u80fd\u591f\u76f4\u63a5\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729947749671ce86543b4e.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528\u63d2\u56fe\" \/><\/p>\n<h2>PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528<\/h2>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u5f15\u7528\u53c2\u6570\u662f PHP \u4e2d\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u5141\u8bb8\u51fd\u6570\u76f4\u63a5\u4fee\u6539\u4f20\u9012\u7ed9\u5b83\u7684\u53d8\u91cf\u3002\u5f53\u5f15\u7528\u53c2\u6570\u4e0e\u51fd\u6570\u56de\u8c03\u7ed3\u5408\u4f7f\u7528\u65f6\uff0c\u5b83\u53d8\u5f97\u975e\u5e38\u6709\u7528\uff0c\u4f7f\u4f60\u53ef\u4ee5\u64cd\u7eb5\u4f20\u9012\u7ed9\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570\u3002<\/p>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u5728\u51fd\u6570\u58f0\u660e\u4e2d\uff0c\u4f7f\u7528\u7b26\u53f7 <code>&amp;<\/code> \u6765\u58f0\u660e\u5f15\u7528\u53c2\u6570\u3002\u4f8b\u5982\u6b64\u4f8b\u4e2d\uff1a<\/p>\n<pre>function updateValue(int &amp;$value) {\n  $value++;\n}<\/pre>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5<\/strong><\/p>\n<p>\u8981\u4f7f\u7528\u5f15\u7528\u53c2\u6570\uff0c\u53ea\u9700\u5c06\u9700\u8981\u4f20\u9012\u7684\u53d8\u91cf\u4f5c\u4e3a\u5f15\u7528\u53c2\u6570\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>$value = 10;\nupdateValue($value);\necho $value; \/\/ \u8f93\u51fa 11<\/pre>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>$value<\/code> \u5728 <code>updateValue<\/code> \u51fd\u6570\u4e2d\u88ab\u9012\u589e\uff0c\u5e76\u4e14\u66f4\u6539\u4f1a\u53cd\u6620\u5728\u539f\u59cb\u53d8\u91cf\u4e2d\u3002<\/p>\n<p><strong>\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528<\/strong><\/p>\n<p>\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7279\u522b\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u56de\u8c03\u51fd\u6570\u4fee\u6539\u4f20\u9012\u7ed9\u5b83\u7684\u53c2\u6570\u3002\u8fd9\u4f7f\u5f97\u4f60\u53ef\u4ee5\u521b\u5efa\u52a8\u6001\u7684\u884c\u4e3a\uff0c\u5e76\u5728\u51fd\u6570\u8fd0\u884c\u671f\u95f4\u66f4\u6539\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a\u6392\u5e8f\u6570\u7ec4<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u7684\u5b9e\u9645\u793a\u4f8b\uff1a<\/p>\n<pre>$arr = [3, 1, 5, 2, 4];\n\nusort($arr, function (int &amp;$a, int &amp;$b) {\n  if ($a &gt; $b) {\n    return 1;\n  } elseif ($a &lt; $b) {\n    return -1;\n  } else {\n    return 0;\n  }\n});\n\nprint_r($arr); \/\/ \u8f93\u51fa [1, 2, 3, 4, 5]<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>usort<\/code> \u51fd\u6570\u4f7f\u7528\u533f\u540d\u51fd\u6570\u4f5c\u4e3a\u5176\u6bd4\u8f83\u5668\u3002\u5f15\u7528\u53c2\u6570 <code>&amp;$a<\/code> \u548c <code>&amp;$b<\/code> \u5141\u8bb8\u6bd4\u8f83\u5668\u76f4\u63a5\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u5b9e\u73b0\u5bf9\u6570\u7ec4\u7684\u6392\u5e8f\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8ephp,\u51fd\u6570\u56de\u8c03\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528 \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aPHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528\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 \u5f15\u7528\u53c2\u6570\u5728 PHP \u51fd\u6570\u4e2d\u901a\u8fc7\u7b26\u53f7 &#8220;&amp;&#8221; \u58f0\u660e\uff0c\u5141\u8bb8\u51fd\u6570\u76f4\u63a5\u4fee\u6539\u4f20\u9012\u7ed9\u5b83\u7684\u53d8\u91cf\u3002\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u65f6\uff0c\u56de\u8c03\u51fd\u6570\u53ef\u4ee5\u64cd\u7eb5\u4f20\u9012\u7ed9\u5b83\u7684\u53c2\u6570\uff0c\u4ece\u800c\u5b9e\u73b0\u52a8\u6001\u884c\u4e3a\u548c\u6539\u53d8\u53d8\u91cf\u503c\u3002\u5b9e\u6218\u6848\u4f8b\u5305\u62ec\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u4f7f\u56de\u8c03\u51fd\u6570\u80fd\u591f\u76f4\u63a5\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002 PHP \u51fd\u6570\u4e2d\u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528 \u7b80\u4ecb \u5f15\u7528\u53c2\u6570\u662f PHP \u4e2d\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u5141\u8bb8\u51fd\u6570\u76f4\u63a5\u4fee\u6539\u4f20\u9012\u7ed9\u5b83\u7684\u53d8\u91cf\u3002\u5f53\u5f15\u7528\u53c2\u6570\u4e0e\u51fd\u6570\u56de\u8c03\u7ed3\u5408\u4f7f\u7528\u65f6\uff0c\u5b83\u53d8\u5f97\u975e\u5e38\u6709\u7528\uff0c\u4f7f\u4f60\u53ef\u4ee5\u64cd\u7eb5\u4f20\u9012\u7ed9\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570\u3002 \u8bed\u6cd5 \u5728\u51fd\u6570\u58f0\u660e\u4e2d\uff0c\u4f7f\u7528\u7b26\u53f7 &amp; \u6765\u58f0\u660e\u5f15\u7528\u53c2\u6570\u3002\u4f8b\u5982\u6b64\u4f8b\u4e2d\uff1a function updateValue(int &amp;$value) { $value++; } \u4f7f\u7528\u65b9\u6cd5 \u8981\u4f7f\u7528\u5f15\u7528\u53c2\u6570\uff0c\u53ea\u9700\u5c06\u9700\u8981\u4f20\u9012\u7684\u53d8\u91cf\u4f5c\u4e3a\u5f15\u7528\u53c2\u6570\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u4f8b\u5982\uff1a $value = 10; updateValue($value); echo $value; \/\/ \u8f93\u51fa 11 \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c$value \u5728 updateValue \u51fd\u6570\u4e2d\u88ab\u9012\u589e\uff0c\u5e76\u4e14\u66f4\u6539\u4f1a\u53cd\u6620\u5728\u539f\u59cb\u53d8\u91cf\u4e2d\u3002 \u51fd\u6570\u56de\u8c03\u4e2d\u7684\u5e94\u7528 \u5f15\u7528\u53c2\u6570\u5728\u51fd\u6570\u56de\u8c03\u4e2d\u7279\u522b\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u56de\u8c03\u51fd\u6570\u4fee\u6539\u4f20\u9012\u7ed9\u5b83\u7684\u53c2\u6570\u3002\u8fd9\u4f7f\u5f97\u4f60\u53ef\u4ee5\u521b\u5efa\u52a8\u6001\u7684\u884c\u4e3a\uff0c\u5e76\u5728\u51fd\u6570\u8fd0\u884c\u671f\u95f4\u66f4\u6539\u53d8\u91cf\u7684\u503c\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a\u6392\u5e8f\u6570\u7ec4 \u4ee5\u4e0b\u662f\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u7684\u5b9e\u9645\u793a\u4f8b\uff1a $arr = [3, 1, 5, 2, 4]; usort($arr, function (int &amp;$a, [&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-47994","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47994","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=47994"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47994\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47994"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}