{"id":47545,"date":"2024-12-02T12:30:55","date_gmt":"2024-12-02T04:30:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47545\/"},"modified":"2024-12-02T12:30:55","modified_gmt":"2024-12-02T04:30:55","slug":"php%e5%87%bd%e6%95%b0%e4%bb%a3%e7%a0%81%e9%a3%8e%e6%a0%bc%e7%9a%84%e4%bc%98%e5%8c%96%e5%bb%ba%e8%ae%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47545\/","title":{"rendered":"PHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae<\/h1>\n<p>\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729923141671c88450ce74.jpg\" class=\"aligncenter\" title=\"PHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae\u63d2\u56fe\" alt=\"PHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae\u63d2\u56fe\" \/><\/p>\n<h2>PHP \u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae<\/h2>\n<p><strong>\u5f15\u8a00<\/strong><\/p>\n<p>\u51fd\u6570\u662f PHP \u4e2d\u4ee3\u7801\u7ec4\u7ec7\u548c\u91cd\u7528\u7684\u57fa\u672c\u6784\u5efa\u5757\u3002\u9075\u5faa\u826f\u597d\u4e14\u4e00\u81f4\u7684\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u53ef\u4ee5\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8c03\u8bd5\u6027\u3002\u672c\u6587\u5c06\u63d0\u4f9b\u4e00\u4e9b\u5173\u4e8e\u5982\u4f55\u4f18\u5316 PHP \u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u5efa\u8bae\uff0c\u5e76\u4f7f\u7528\u5b9e\u9645\u793a\u4f8b\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n<p><strong>1. \u4f7f\u7528\u4e00\u81f4\u7684\u9a7c\u5cf0\u547d\u540d\u6cd5<\/strong><\/p>\n<p>\u51fd\u6570\u540d\u79f0\u5e94\u9075\u5faa\u9a7c\u5cf0\u547d\u540d\u6cd5\uff0c\u5373\u6bcf\u4e2a\u5355\u8bcd\u7684\u9996\u5b57\u6bcd\u5927\u5199\uff0c\u4e14\u7b2c\u4e00\u4e2a\u5355\u8bcd\u9664\u5916\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>function greetUser($name) {\n  \/\/ ...\n}<\/pre>\n<p><strong>2. \u907f\u514d\u4f7f\u7528\u4e0b\u5212\u7ebf<\/strong><\/p>\n<p>PHP \u4e2d\u7684\u51fd\u6570\u540d\u79f0\u4e0d\u5e94\u4f7f\u7528\u4e0b\u5212\u7ebf\u3002\u4e0b\u5212\u7ebf\u901a\u5e38\u7528\u4e8e\u8868\u793a\u79c1\u6709\u6216\u53d7\u4fdd\u62a4\u6210\u5458\u3002<\/p>\n<pre>function greet_user($name) { \/\/ \u4e0d\u4f73\n  \/\/ ...\n}<\/pre>\n<p><strong>3. \u5b9a\u4e49\u6e05\u6670\u7684\u53c2\u6570\u7c7b\u578b<\/strong><\/p>\n<p>\u660e\u786e\u5b9a\u4e49\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u53ef\u4ee5\u5e2e\u52a9\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u53ef\u4ee5\u4f7f\u7528 PHP 7+ \u4e2d\u7684\u53c2\u6570\u7c7b\u578b\u63d0\u793a\uff1a<\/p>\n<pre>function greetUser(string $name): void {\n  \/\/ ...\n}<\/pre>\n<p><strong>4. \u4f7f\u7528\u6587\u6863\u5757<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 <code>\/** ... *\/<\/code> \u6587\u6863\u5757\u6765\u8bb0\u5f55\u51fd\u6570\u7684\u7528\u9014\u3001\u53c2\u6570\u548c\u8fd4\u56de\u503c\u3002\u8fd9\u5bf9\u4e8e\u751f\u6210\u6587\u6863\u548c\u589e\u5f3a\u4ee3\u7801\u7406\u89e3\u975e\u5e38\u6709\u7528\u3002<\/p>\n<pre>\/**\n * Greets a user by name.\n *\n * @param string $name The name of the user\n *\/\nfunction greetUser(string $name): void {\n  \/\/ ...\n}<\/pre>\n<p><strong>5. \u5904\u7406\u8fd4\u56de\u503c<\/strong><\/p>\n<p>\u660e\u786e\u8fd4\u56de\u7c7b\u578b\u6216\u4f7f\u7528 <code>void<\/code> \u58f0\u660e\u7a7a\u8fd4\u56de\u503c\u3002\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u9884\u6d4b\u6027\u548c\u8c03\u8bd5\u6027\u3002<\/p>\n<pre>function greetUser(string $name): string {\n  \/\/ ...\n}<\/pre>\n<p><strong>6. \u63a7\u5236\u4ee3\u7801\u6d41\u7a0b<\/strong><\/p>\n<p>\u4f7f\u7528\u6e05\u6670\u7684\u7f29\u8fdb\u3001\u62ec\u53f7\u548c\u6761\u4ef6\u8bed\u53e5\u6765\u63a7\u5236\u4ee3\u7801\u6d41\u7a0b\u3002\u907f\u514d\u4f7f\u7528 GOTO \u8bed\u53e5\u548c\u6df7\u6dc6\u8bed\u4e49\u7684\u5206\u652f\u6761\u4ef6\u3002<\/p>\n<p><strong>7. \u5206\u89e3\u590d\u6742\u51fd\u6570<\/strong><\/p>\n<p>\u5982\u679c\u51fd\u6570\u8fc7\u4e8e\u590d\u6742\uff0c\u53ef\u4ee5\u5c06\u5176\u5206\u89e3\u4e3a\u8f83\u5c0f\u7684\u3001\u53ef\u91cd\u7528\u7684\u6a21\u5757\u3002\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u53ef\u7ef4\u62a4\u6027\uff0c\u5e76\u4f7f\u5176\u66f4\u5bb9\u6613\u7406\u89e3\u6bcf\u4e2a\u6a21\u5757\u7684\u4f5c\u7528\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u4e0b\u9762\u7684\u4ee3\u7801\u793a\u4f8b\u5c55\u793a\u4e86\u5c06\u539f\u59cb\u51fd\u6570\u4f18\u5316\u4e3a\u7b26\u5408\u826f\u597d\u4ee3\u7801\u98ce\u683c\u7684\u51fd\u6570\uff1a<\/p>\n<p><strong>\u539f\u59cb\u51fd\u6570\uff1a<\/strong><\/p>\n<pre>function greetUser($thename) {\n  if ($thename == \"\")\n    return \"Hello, Stranger!\";\n  else\n    $greet = \"Hello, \" . $thename;\n    return $greet;\n}<\/pre>\n<p><strong>\u4f18\u5316\u540e\u7684\u51fd\u6570\uff1a<\/strong><\/p>\n<pre>\/**\n * Greets a user by name.\n *\n * @param string $name The name of the user\n *\n * @return string\n *\/\nfunction greetUser(string $name): string {\n  if ($name === \"\") {\n    return \"Hello, Stranger!\";\n  } else {\n    $greeting = \"Hello, $name!\";\n    return $greeting;\n  }\n}<\/pre>\n<p>\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u5efa\u8bae\uff0cPHP \u7a0b\u5e8f\u5458\u53ef\u4ee5\u7f16\u5199\u65e2\u53ef\u8bfb\u53c8\u53ef\u7ef4\u62a4\u7684\u51fd\u6570\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\u5e76\u4fc3\u8fdb\u56e2\u961f\u534f\u4f5c\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aPHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae \u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587\u300aPHP\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae\u300b\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0\u6587\u7ae0\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01 PHP \u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u4f18\u5316\u5efa\u8bae \u5f15\u8a00 \u51fd\u6570\u662f PHP \u4e2d\u4ee3\u7801\u7ec4\u7ec7\u548c\u91cd\u7528\u7684\u57fa\u672c\u6784\u5efa\u5757\u3002\u9075\u5faa\u826f\u597d\u4e14\u4e00\u81f4\u7684\u51fd\u6570\u4ee3\u7801\u98ce\u683c\u53ef\u4ee5\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8c03\u8bd5\u6027\u3002\u672c\u6587\u5c06\u63d0\u4f9b\u4e00\u4e9b\u5173\u4e8e\u5982\u4f55\u4f18\u5316 PHP \u51fd\u6570\u4ee3\u7801\u98ce\u683c\u7684\u5efa\u8bae\uff0c\u5e76\u4f7f\u7528\u5b9e\u9645\u793a\u4f8b\u8fdb\u884c\u8bf4\u660e\u3002 1. \u4f7f\u7528\u4e00\u81f4\u7684\u9a7c\u5cf0\u547d\u540d\u6cd5 \u51fd\u6570\u540d\u79f0\u5e94\u9075\u5faa\u9a7c\u5cf0\u547d\u540d\u6cd5\uff0c\u5373\u6bcf\u4e2a\u5355\u8bcd\u7684\u9996\u5b57\u6bcd\u5927\u5199\uff0c\u4e14\u7b2c\u4e00\u4e2a\u5355\u8bcd\u9664\u5916\u3002\u4f8b\u5982\uff1a function greetUser($name) { \/\/ &#8230; } 2. \u907f\u514d\u4f7f\u7528\u4e0b\u5212\u7ebf PHP \u4e2d\u7684\u51fd\u6570\u540d\u79f0\u4e0d\u5e94\u4f7f\u7528\u4e0b\u5212\u7ebf\u3002\u4e0b\u5212\u7ebf\u901a\u5e38\u7528\u4e8e\u8868\u793a\u79c1\u6709\u6216\u53d7\u4fdd\u62a4\u6210\u5458\u3002 function greet_user($name) { \/\/ \u4e0d\u4f73 \/\/ &#8230; } 3. \u5b9a\u4e49\u6e05\u6670\u7684\u53c2\u6570\u7c7b\u578b \u660e\u786e\u5b9a\u4e49\u51fd\u6570\u53c2\u6570\u7684\u7c7b\u578b\u53ef\u4ee5\u5e2e\u52a9\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u53ef\u4ee5\u4f7f\u7528 PHP 7+ \u4e2d\u7684\u53c2\u6570\u7c7b\u578b\u63d0\u793a\uff1a function greetUser(string $name): void { \/\/ &#8230; } 4. \u4f7f\u7528\u6587\u6863\u5757 \u53ef\u4ee5\u4f7f\u7528 \/** &#8230; *\/ \u6587\u6863\u5757\u6765\u8bb0\u5f55\u51fd\u6570\u7684\u7528\u9014\u3001\u53c2\u6570\u548c\u8fd4\u56de\u503c\u3002\u8fd9\u5bf9\u4e8e\u751f\u6210\u6587\u6863\u548c\u589e\u5f3a\u4ee3\u7801\u7406\u89e3\u975e\u5e38\u6709\u7528\u3002 \/** * Greets [&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-47545","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47545","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=47545"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47545\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}