{"id":22266,"date":"2024-11-21T08:26:23","date_gmt":"2024-11-21T00:26:23","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22266\/"},"modified":"2024-11-21T08:26:23","modified_gmt":"2024-11-21T00:26:23","slug":"%e8%81%8a%e8%81%8athinkphp%e4%b8%adif%e7%9a%84%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22266\/","title":{"rendered":"\u804a\u804athinkphp\u4e2dif\u7684\u7528\u6cd5"},"content":{"rendered":"

thinkphp\u662f\u4e00\u6b3e\u4f18\u79c0\u7684php\u5f00\u6e90\u6846\u67b6\uff0c\u5b83\u7b80\u5316\u4e86\u5f00\u53d1\u8005\u7684\u5de5\u4f5c\u91cf\uff0c\u63d0\u9ad8\u4e86\u5f00\u53d1\u6548\u7387\u3002\u5728thinkphp\u4e2d\uff0cif\u8bed\u53e5\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u63a7\u5236\u6d41\u8bed\u53e5\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728thinkphp\u4e2d\u4f7f\u7528if\u8bed\u53e5\u3002<\/p>\n

\u5728ThinkPHP\u4e2d\uff0cif\u8bed\u53e5\u7684\u8bed\u6cd5\u683c\u5f0f\u548c\u666e\u901a\u7684PHP if\u8bed\u53e5\u4e00\u6837\uff0c\u4f46\u662f\u6709\u4e00\u4e9b\u7ec6\u5fae\u7684\u5dee\u522b\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684if\u8bed\u53e5\u793a\u4f8b\uff1a<\/p>\n

if ($score >= 60) {\n    echo '\u53ca\u683c\u4e86';\n} else {\n    echo '\u6ca1\u6709\u53ca\u683c';\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u8868\u793a\uff0c\u5982\u679c\u53d8\u91cf$score\u7684\u503c\u5927\u4e8e\u7b49\u4e8e60\uff0c\u8f93\u51fa\u201c\u53ca\u683c\u4e86\u201d\uff0c\u5426\u5219\u8f93\u51fa\u201c\u6ca1\u6709\u53ca\u683c\u201d\u3002\u8fd9\u6bb5\u4ee3\u7801\u5728ThinkPHP\u4e2d\u7684\u4f7f\u7528\u65b9\u6cd5\u548c\u666e\u901a\u7684PHP if\u8bed\u53e5\u5b8c\u5168\u4e00\u6837\u3002<\/p>\n
\u9664\u6b64\u4e4b\u5916\uff0cThinkPHP\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u4e0eif\u8bed\u53e5\u76f8\u5173\u7684\u5feb\u6377\u51fd\u6570\uff0c\u8fd9\u4e9b\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u65b9\u4fbf\u5730\u8fdb\u884c\u590d\u6742\u7684\u6761\u4ef6\u5224\u65ad\u3002\u4e0b\u9762\u4ecb\u7ecd\u51e0\u4e2a\u5e38\u7528\u7684\u51fd\u6570\uff1a<\/p>\n
    \n
  1. is_null()\u51fd\u6570\uff1a\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3anull\u3002<\/li>\n<\/ol>\n
    if (is_null($variable)) {\n    echo '\u8be5\u53d8\u91cf\u4e3anull';\n} else {\n    echo '\u8be5\u53d8\u91cf\u4e0d\u662fnull';\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \n
    1. empty()\u51fd\u6570\uff1a\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\u3002<\/li>\n<\/ol>\n
      if (empty($variable)) {\n    echo '\u8be5\u53d8\u91cf\u4e3a\u7a7a';\n} else {\n    echo '\u8be5\u53d8\u91cf\u4e0d\u4e3a\u7a7a';\n}<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \n
      1. isset()\u51fd\u6570\uff1a\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u5df2\u58f0\u660e\u5e76\u4e14\u503c\u4e0d\u4e3anull\u3002<\/li>\n<\/ol>\n
        if (isset($variable)) {\n    echo '\u8be5\u53d8\u91cf\u5df2\u58f0\u660e\u5e76\u4e14\u503c\u4e0d\u4e3anull';\n} else {\n    echo '\u8be5\u53d8\u91cf\u672a\u58f0\u660e\u6216\u8005\u503c\u4e3anull';\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u9664\u4e86\u4ee5\u4e0a\u4e09\u4e2a\u51fd\u6570\u4e4b\u5916\uff0cThinkPHP\u8fd8\u63d0\u4f9b\u4e86\u5927\u91cf\u7684\u5feb\u6377\u51fd\u6570\uff0c\u5982\uff1ain_array()\u3001array_key_exists()\u3001array_search()\u7b49\uff0c\u8fd9\u4e9b\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u7ec4\u548c\u53d8\u91cf\u7684\u6761\u4ef6\u5224\u65ad\u3002<\/p>\n
        \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
        \u603b\u7ed3\u6765\u8bf4\uff0cThinkPHP\u4e2d\u7684if\u8bed\u53e5\u548c\u666e\u901a\u7684PHP if\u8bed\u53e5\u7528\u6cd5\u57fa\u672c\u4e00\u81f4\uff0c\u53ea\u662f\u5728\u6269\u5c55\u529f\u80fd\u4e0a\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u5feb\u6377\u51fd\u6570\uff0c\u53ef\u4f9b\u5f00\u53d1\u8005\u4f7f\u7528\u3002\u638c\u63e1if\u8bed\u53e5\u7684\u7528\u6cd5\uff0c\u5bf9\u4e8e\u5728ThinkPHP\u4e2d\u8fdb\u884c\u590d\u6742\u7684\u6761\u4ef6\u5224\u65ad\u548c\u6570\u636e\u5904\u7406\u975e\u5e38\u6709\u5e2e\u52a9\u3002<\/p>\n
        \u4ee5\u4e0a\u5c31\u662f\u804a\u804athinkphp\u4e2dif\u7684\u7528\u6cd5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
        thinkphp\u662f\u4e00\u6b3e\u4f18\u79c0\u7684php\u5f00\u6e90\u6846\u67b6\uff0c\u5b83\u7b80\u5316\u4e86\u5f00\u53d1\u8005\u7684\u5de5\u4f5c\u91cf\uff0c\u63d0\u9ad8\u4e86\u5f00\u53d1\u6548\u7387\u3002\u5728thinkphp\u4e2d\uff0cif\u8bed\u53e5\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u63a7\u5236\u6d41\u8bed\u53e5\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728thinkphp\u4e2d\u4f7f\u7528if\u8bed\u53e5\u3002 \u5728ThinkPHP\u4e2d\uff0cif\u8bed\u53e5\u7684\u8bed\u6cd5\u683c\u5f0f\u548c\u666e\u901a\u7684PHP if\u8bed\u53e5\u4e00\u6837\uff0c\u4f46\u662f\u6709\u4e00\u4e9b\u7ec6\u5fae\u7684\u5dee\u522b\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684if\u8bed\u53e5\u793a\u4f8b\uff1a if ($score >= 60) { echo ‘\u53ca\u683c\u4e86’; } else { echo ‘\u6ca1\u6709\u53ca\u683c’; } \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u8868\u793a\uff0c\u5982\u679c\u53d8\u91cf$score\u7684\u503c\u5927\u4e8e\u7b49\u4e8e60\uff0c\u8f93\u51fa\u201c\u53ca\u683c\u4e86\u201d\uff0c\u5426\u5219\u8f93\u51fa\u201c\u6ca1\u6709\u53ca\u683c\u201d\u3002\u8fd9\u6bb5\u4ee3\u7801\u5728ThinkPHP\u4e2d\u7684\u4f7f\u7528\u65b9\u6cd5\u548c\u666e\u901a\u7684PHP if\u8bed\u53e5\u5b8c\u5168\u4e00\u6837\u3002 \u9664\u6b64\u4e4b\u5916\uff0cThinkPHP\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u4e0eif\u8bed\u53e5\u76f8\u5173\u7684\u5feb\u6377\u51fd\u6570\uff0c\u8fd9\u4e9b\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u65b9\u4fbf\u5730\u8fdb\u884c\u590d\u6742\u7684\u6761\u4ef6\u5224\u65ad\u3002\u4e0b\u9762\u4ecb\u7ecd\u51e0\u4e2a\u5e38\u7528\u7684\u51fd\u6570\uff1a is_null()\u51fd\u6570\uff1a\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3anull\u3002 if (is_null($variable)) { echo ‘\u8be5\u53d8\u91cf\u4e3anull’; } else { echo ‘\u8be5\u53d8\u91cf\u4e0d\u662fnull’; } \u767b\u5f55\u540e\u590d\u5236 empty()\u51fd\u6570\uff1a\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\u3002 if (empty($variable)) { echo ‘\u8be5\u53d8\u91cf\u4e3a\u7a7a’; } else { echo ‘\u8be5\u53d8\u91cf\u4e0d\u4e3a\u7a7a’; } \u767b\u5f55\u540e\u590d\u5236 isset()\u51fd\u6570\uff1a\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u5df2\u58f0\u660e\u5e76\u4e14\u503c\u4e0d\u4e3anull\u3002 if (isset($variable)) { echo ‘\u8be5\u53d8\u91cf\u5df2\u58f0\u660e\u5e76\u4e14\u503c\u4e0d\u4e3anull’; } else { […]<\/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-22266","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22266","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=22266"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22266\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}