{"id":47928,"date":"2024-12-02T08:14:06","date_gmt":"2024-12-02T00:14:06","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47928\/"},"modified":"2024-12-02T08:14:06","modified_gmt":"2024-12-02T00:14:06","slug":"php-%e5%87%bd%e6%95%b0%e4%b8%ad%e7%9a%84%e5%8f%af%e5%8f%98%e5%8f%82%e6%95%b0%e4%b8%8e%e5%87%bd%e6%95%b0%e9%87%8d%e8%bd%bd%e7%9a%84%e5%85%b3%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47928\/","title":{"rendered":"PHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb"},"content":{"rendered":"

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

PHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aPHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n

PHP \u53ef\u53d8\u53c2\u6570\u5141\u8bb8\u51fd\u6570\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\uff0c\u800c\u51fd\u6570\u91cd\u8f7d\u5219\u521b\u5efa\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u4e0d\u540c\u53c2\u6570\u5217\u8868\u7684\u51fd\u6570\u3002\u901a\u8fc7\u7ed3\u5408\u53ef\u53d8\u53c2\u6570\u548c\u51fd\u6570\u91cd\u8f7d\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u5904\u7406\u4e0d\u540c\u6570\u91cf\u53c2\u6570\u7684\u5355\u4e2a\u51fd\u6570\uff0c\u4f8b\u5982\uff1a\u4f7f\u7528\u53ef\u53d8\u53c2\u6570\u58f0\u660e\u4e00\u4e2a\u51fd\u6570\uff0c\u4ee5\u63a5\u53d7\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\u3002\u4f7f\u7528 func_get_args() \u51fd\u6570\u83b7\u53d6\u51fd\u6570\u63a5\u6536\u7684\u6240\u6709\u53c2\u6570\u3002\u6839\u636e\u53c2\u6570\u6570\u91cf\u4f7f\u7528 switch \u8bed\u53e5\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002<\/p>\n

\"PHP<\/p>\n

PHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb<\/strong><\/p>\n

\u53ef\u53d8\u53c2\u6570<\/strong><\/p>\n

PHP \u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u5141\u8bb8\u51fd\u6570\u63a5\u53d7\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\u3002\u5b83\u4eec\u4f7f\u7528 “…”\uff08\u4e09\u4e2a\u70b9\uff09\u6765\u58f0\u660e\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

function myFunction(...$args) {\n  echo implode(', ', $args);\n}<\/pre>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cmyFunction<\/code> \u53ef\u4ee5\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\uff0c\u8fd9\u4e9b\u53c2\u6570\u5c06\u5b58\u50a8\u5728 $args<\/code> \u6570\u7ec4\u4e2d\u3002<\/p>\n
\u51fd\u6570\u91cd\u8f7d<\/strong><\/p>\n
\u51fd\u6570\u91cd\u8f7d\u662f\u521b\u5efa\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u4e0d\u540c\u53c2\u6570\u5217\u8868\u7684\u51fd\u6570\u7684\u80fd\u529b\u3002PHP \u4e0d\u652f\u6301\u4f20\u7edf\u7684\u51fd\u6570\u91cd\u8f7d\uff0c\u4f46\u5b83\u786e\u5b9e\u63d0\u4f9b\u4e86\u4e00\u79cd\u6a21\u62df\u51fd\u6570\u91cd\u8f7d\u7684\u65b9\u6cd5\u3002<\/p>\n
\u7ed3\u5408\u53ef\u53d8\u53c2\u6570\u548c\u51fd\u6570\u91cd\u8f7d<\/strong><\/p>\n
\u901a\u8fc7\u7ed3\u5408\u53ef\u53d8\u53c2\u6570\u548c\u51fd\u6570\u91cd\u8f7d\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u53ef\u4ee5\u5904\u7406\u4e0d\u540c\u6570\u91cf\u53c2\u6570\u7684\u5355\u4e2a\u51fd\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 func_get_args()<\/code> \u51fd\u6570\u6765\u83b7\u53d6\u51fd\u6570\u63a5\u6536\u7684\u6240\u6709\u53c2\u6570\uff1a<\/p>\n
function myFunctionOverloaded() {\n  $args = func_get_args();\n  $numArgs = count($args);\n\n  switch ($numArgs) {\n    case 1:\n      echo \"\u4e00\u4e2a\u53c2\u6570\uff1a{$args[0]}\";\n      break;\n    case 2:\n      echo \"\u4e24\u4e2a\u53c2\u6570\uff1a{$args[0]}, {$args[1]}\";\n      break;\n    default:\n      echo \"\u4e09\u4e2a\u6216\u66f4\u591a\u53c2\u6570\uff1a\";\n      echo implode(', ', $args);\n  }\n}<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u8868\u5355\u5904\u7406\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u53ef\u4ee5\u5904\u7406\u4e0d\u540c\u7684\u8f93\u5165\u57df\u3002<\/p>\n
function handleFormInput(...$fields) {\n  foreach ($fields as $field) {\n    $value = $_POST[$field];\n    \/\/ \u9a8c\u8bc1\u548c\u5904\u7406\u503c...\n  }\n}<\/pre>\n
\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 handleFormInput<\/code> \u51fd\u6570\u6765\u5904\u7406\u591a\u4e2a\u8f93\u5165\u5b57\u6bb5\uff1a<\/p>\n
handleFormInput('username', 'password', 'email');<\/pre>\n
\u6ce8\u610f\uff1a<\/strong><\/p>\n
    \n
  • \u53ef\u53d8\u53c2\u6570\u5fc5\u987b\u653e\u5728\u6240\u6709\u5176\u4ed6\u53c2\u6570\u7684\u672b\u5c3e\u3002<\/li>\n
  • \u5982\u679c\u51fd\u6570\u540c\u65f6\u5177\u6709\u56fa\u5b9a\u53c2\u6570\u548c\u53ef\u53d8\u53c2\u6570\uff0c\u5219\u4e0d\u80fd\u4f7f\u7528\u51fd\u6570\u91cd\u8f7d\u3002<\/li>\n<\/ul>\n
    \u4eca\u5929\u5173\u4e8e\u300aPHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb\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\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb \u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aPHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002 PHP \u53ef\u53d8\u53c2\u6570\u5141\u8bb8\u51fd\u6570\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\uff0c\u800c\u51fd\u6570\u91cd\u8f7d\u5219\u521b\u5efa\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u4e0d\u540c\u53c2\u6570\u5217\u8868\u7684\u51fd\u6570\u3002\u901a\u8fc7\u7ed3\u5408\u53ef\u53d8\u53c2\u6570\u548c\u51fd\u6570\u91cd\u8f7d\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u5904\u7406\u4e0d\u540c\u6570\u91cf\u53c2\u6570\u7684\u5355\u4e2a\u51fd\u6570\uff0c\u4f8b\u5982\uff1a\u4f7f\u7528\u53ef\u53d8\u53c2\u6570\u58f0\u660e\u4e00\u4e2a\u51fd\u6570\uff0c\u4ee5\u63a5\u53d7\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\u3002\u4f7f\u7528 func_get_args() \u51fd\u6570\u83b7\u53d6\u51fd\u6570\u63a5\u6536\u7684\u6240\u6709\u53c2\u6570\u3002\u6839\u636e\u53c2\u6570\u6570\u91cf\u4f7f\u7528 switch \u8bed\u53e5\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002 PHP \u51fd\u6570\u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u4e0e\u51fd\u6570\u91cd\u8f7d\u7684\u5173\u7cfb \u53ef\u53d8\u53c2\u6570 PHP \u4e2d\u7684\u53ef\u53d8\u53c2\u6570\u5141\u8bb8\u51fd\u6570\u63a5\u53d7\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\u3002\u5b83\u4eec\u4f7f\u7528 “…”\uff08\u4e09\u4e2a\u70b9\uff09\u6765\u58f0\u660e\uff0c\u5982\u4e0b\u6240\u793a\uff1a function myFunction(…$args) { echo implode(‘, ‘, $args); } \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cmyFunction \u53ef\u4ee5\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\uff0c\u8fd9\u4e9b\u53c2\u6570\u5c06\u5b58\u50a8\u5728 $args \u6570\u7ec4\u4e2d\u3002 \u51fd\u6570\u91cd\u8f7d \u51fd\u6570\u91cd\u8f7d\u662f\u521b\u5efa\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u4e0d\u540c\u53c2\u6570\u5217\u8868\u7684\u51fd\u6570\u7684\u80fd\u529b\u3002PHP \u4e0d\u652f\u6301\u4f20\u7edf\u7684\u51fd\u6570\u91cd\u8f7d\uff0c\u4f46\u5b83\u786e\u5b9e\u63d0\u4f9b\u4e86\u4e00\u79cd\u6a21\u62df\u51fd\u6570\u91cd\u8f7d\u7684\u65b9\u6cd5\u3002 \u7ed3\u5408\u53ef\u53d8\u53c2\u6570\u548c\u51fd\u6570\u91cd\u8f7d \u901a\u8fc7\u7ed3\u5408\u53ef\u53d8\u53c2\u6570\u548c\u51fd\u6570\u91cd\u8f7d\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u53ef\u4ee5\u5904\u7406\u4e0d\u540c\u6570\u91cf\u53c2\u6570\u7684\u5355\u4e2a\u51fd\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 func_get_args() \u51fd\u6570\u6765\u83b7\u53d6\u51fd\u6570\u63a5\u6536\u7684\u6240\u6709\u53c2\u6570\uff1a function myFunctionOverloaded() { $args = func_get_args(); $numArgs = count($args); switch ($numArgs) { case 1: echo “\u4e00\u4e2a\u53c2\u6570\uff1a{$args[0]}”; break; case 2: echo […]<\/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-47928","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47928","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=47928"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47928\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47928"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}