{"id":46746,"date":"2024-12-02T13:22:53","date_gmt":"2024-12-02T05:22:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46746\/"},"modified":"2024-12-02T13:22:53","modified_gmt":"2024-12-02T05:22:53","slug":"php%e5%87%bd%e6%95%b0%e5%9c%a8%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e4%b8%ad%e7%9a%84%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46746\/","title":{"rendered":"PHP\u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7"},"content":{"rendered":"

<\/b> <\/p>\n

PHP\u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300aPHP\u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n

\u4f18\u5316 PHP \u51fd\u6570\u6027\u80fd\u7684\u6280\u5de7\u5305\u62ec\uff1a\u51cf\u5c11\u51fd\u6570\u8c03\u7528\u6b21\u6570\uff0c\u907f\u514d\u5d4c\u5957\u8c03\u7528\u548c\u591a\u6b21\u8c03\u7528\u540c\u4e00\u51fd\u6570\u3002\u4f7f\u7528 Inline Functions\uff0c\u5c06\u5c0f\u578b\u51fd\u6570\u76f4\u63a5\u5185\u8054\u5230\u8c03\u7528\u4ee3\u7801\u4e2d\u3002\u7f13\u5b58\u51fd\u6570\u7ed3\u679c\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u91cd\u65b0\u8ba1\u7b97\u3002\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5168\u5c40\u53d8\u91cf\uff0c\u4f7f\u7528\u9759\u6001\u53d8\u91cf\u6216\u672c\u5730\u4f5c\u7528\u57df\u53d8\u91cf\u3002<\/p>\n

\"PHP\u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7\u63d2\u56fe\"<\/p>\n

PHP \u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7<\/strong><\/p>\n

PHP \u51fd\u6570\u5bf9\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u4e0d\u5f53\u4f7f\u7528\u51fd\u6570\u53ef\u80fd\u4f1a\u5bfc\u81f4\u91cd\u5927\u74f6\u9888\uff0c\u800c\u4f18\u5316\u5b83\u4eec\u7684\u7528\u6cd5\u53ef\u4ee5\u663e\u7740\u63d0\u9ad8\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4f18\u5316 PHP \u51fd\u6570\u6027\u80fd\u7684\u4e00\u4e9b\u6280\u5de7\uff1a<\/p>\n

\u51cf\u5c11\u51fd\u6570\u8c03\u7528\uff1a<\/strong><\/p>\n

\u5982\u679c\u53ef\u80fd\uff0c\u8bf7\u51cf\u5c11\u5e94\u7528\u7a0b\u5e8f\u4e2d\u51fd\u6570\u8c03\u7528\u7684\u6b21\u6570\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u51cf\u5c11\u5904\u7406\u5f00\u9500\u5e76\u63d0\u9ad8\u6267\u884c\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u51cf\u5c11\u51fd\u6570\u8c03\u7528\u7684\u793a\u4f8b\uff1a<\/p>\n

\/\/ **Bad:**\n$result = calculate_sum($a, $b, $c);\n\n\/\/ **Good:**\n$sum = $a + $b + $c;<\/pre>\n
\u4f7f\u7528 Inline Functions\uff1a<\/strong><\/p>\n
\u5bf9\u4e8e\u975e\u5e38\u5c0f\u7684\u51fd\u6570\uff0c\u5c06\u5176\u5185\u8054\u5230\u8c03\u7528\u4ee3\u7801\u4e2d\u53ef\u4ee5\u907f\u514d\u51fd\u6570\u8c03\u7528\u306e\u5f00\u9500\u3002<\/p>\n
\/\/ **Bad:**\n$result = myFunction($arg);\n\n\/\/ **Good:**\n$result = $arg * 2;<\/pre>\n
\u7f13\u5b58\u51fd\u6570\u7ed3\u679c\uff1a<\/strong><\/p>\n
\u5982\u679c\u51fd\u6570\u7684\u7ed3\u679c\u5728\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7ecf\u5e38\u88ab\u4f7f\u7528\uff0c\u8bf7\u8003\u8651\u5bf9\u5176\u7ed3\u679c\u8fdb\u884c\u7f13\u5b58\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u91cd\u65b0\u8ba1\u7b97\u5e76\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
\/\/ \u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5\nfunction get_connection() {\n  static $conn = null;\n  if ($conn === null) {\n    $conn = new PDO(...);\n  }\n  return $conn;\n}<\/pre>\n
\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5168\u5c40\u53d8\u91cf\uff1a<\/strong><\/p>\n
\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
\u8003\u8651\u4e00\u4e2a PHP \u5e94\u7528\u7a0b\u5e8f\uff0c\u5b83\u4f7f\u7528\u4e00\u4e2a\u540d\u4e3a calculate_average()<\/code> \u7684\u51fd\u6570\u6765\u8ba1\u7b97\u7ed9\u5b9a\u6570\u7ec4\u7684\u5e73\u5747\u503c\u3002\u521d\u59cb\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n
function calculate_average($numbers) {\n  $sum = 0;\n  foreach ($numbers as $number) {\n    $sum += $number;\n  }\n  return $sum \/ count($numbers);\n}<\/pre>\n
\u8be5\u51fd\u6570\u5bf9\u4e8e\u5c0f\u578b\u6570\u7ec4\u7684\u6027\u80fd\u826f\u597d\u3002\u7136\u800c\uff0c\u5bf9\u4e8e\u5927\u578b\u6570\u7ec4\uff0c\u6267\u884c foreach \u5faa\u73af\u7684\u5f00\u9500\u4f1a\u53d8\u5f97\u663e\u8457\u3002\u4e3a\u4e86\u4f18\u5316\u6027\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 PHP \u7684 array_sum()<\/code> \u51fd\u6570\u6765\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u7684\u603b\u548c\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
function calculate_average($numbers) {\n  $sum = array_sum($numbers);\n  return $sum \/ count($numbers);\n}<\/pre>\n
\u8fd9\u4e00\u4fee\u6539\u6d88\u9664\u4e86 foreach \u5faa\u73af\u7684\u5f00\u9500\uff0c\u4ece\u800c\u5bf9\u6027\u80fd\u4ea7\u751f\u4e86\u91cd\u5927\u5f71\u54cd\u3002\u5728\u6d4b\u8bd5\u4e2d\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u5305\u542b 100 \u4e07\u4e2a\u5143\u7d20\u7684\u6570\u7ec4\uff0c\u4f18\u5316\u540e\u7684\u51fd\u6570\u6bd4\u539f\u59cb\u51fd\u6570\u5feb\u4e86 20%\u3002<\/p>\n
\u6587\u4e2d\u5173\u4e8ephp,\u6027\u80fd\u4f18\u5316\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aPHP\u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
PHP\u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7 \u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300aPHP\u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~ \u4f18\u5316 PHP \u51fd\u6570\u6027\u80fd\u7684\u6280\u5de7\u5305\u62ec\uff1a\u51cf\u5c11\u51fd\u6570\u8c03\u7528\u6b21\u6570\uff0c\u907f\u514d\u5d4c\u5957\u8c03\u7528\u548c\u591a\u6b21\u8c03\u7528\u540c\u4e00\u51fd\u6570\u3002\u4f7f\u7528 Inline Functions\uff0c\u5c06\u5c0f\u578b\u51fd\u6570\u76f4\u63a5\u5185\u8054\u5230\u8c03\u7528\u4ee3\u7801\u4e2d\u3002\u7f13\u5b58\u51fd\u6570\u7ed3\u679c\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u91cd\u65b0\u8ba1\u7b97\u3002\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5168\u5c40\u53d8\u91cf\uff0c\u4f7f\u7528\u9759\u6001\u53d8\u91cf\u6216\u672c\u5730\u4f5c\u7528\u57df\u53d8\u91cf\u3002 PHP \u51fd\u6570\u5728\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u6280\u5de7 PHP \u51fd\u6570\u5bf9\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u4e0d\u5f53\u4f7f\u7528\u51fd\u6570\u53ef\u80fd\u4f1a\u5bfc\u81f4\u91cd\u5927\u74f6\u9888\uff0c\u800c\u4f18\u5316\u5b83\u4eec\u7684\u7528\u6cd5\u53ef\u4ee5\u663e\u7740\u63d0\u9ad8\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4f18\u5316 PHP \u51fd\u6570\u6027\u80fd\u7684\u4e00\u4e9b\u6280\u5de7\uff1a \u51cf\u5c11\u51fd\u6570\u8c03\u7528\uff1a \u5982\u679c\u53ef\u80fd\uff0c\u8bf7\u51cf\u5c11\u5e94\u7528\u7a0b\u5e8f\u4e2d\u51fd\u6570\u8c03\u7528\u7684\u6b21\u6570\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u51cf\u5c11\u5904\u7406\u5f00\u9500\u5e76\u63d0\u9ad8\u6267\u884c\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u51cf\u5c11\u51fd\u6570\u8c03\u7528\u7684\u793a\u4f8b\uff1a \/\/ **Bad:** $result = calculate_sum($a, $b, $c); \/\/ **Good:** $sum = $a + $b + $c; \u4f7f\u7528 Inline Functions\uff1a \u5bf9\u4e8e\u975e\u5e38\u5c0f\u7684\u51fd\u6570\uff0c\u5c06\u5176\u5185\u8054\u5230\u8c03\u7528\u4ee3\u7801\u4e2d\u53ef\u4ee5\u907f\u514d\u51fd\u6570\u8c03\u7528\u306e\u5f00\u9500\u3002 \/\/ **Bad:** $result = myFunction($arg); \/\/ **Good:** $result = $arg * 2; \u7f13\u5b58\u51fd\u6570\u7ed3\u679c\uff1a \u5982\u679c\u51fd\u6570\u7684\u7ed3\u679c\u5728\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7ecf\u5e38\u88ab\u4f7f\u7528\uff0c\u8bf7\u8003\u8651\u5bf9\u5176\u7ed3\u679c\u8fdb\u884c\u7f13\u5b58\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u91cd\u65b0\u8ba1\u7b97\u5e76\u63d0\u9ad8\u6027\u80fd\u3002 \/\/ \u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5 function get_connection() { static […]<\/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-46746","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46746","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=46746"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46746\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}