{"id":23776,"date":"2024-11-21T17:08:19","date_gmt":"2024-11-21T09:08:19","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23776\/"},"modified":"2024-11-21T17:08:19","modified_gmt":"2024-11-21T09:08:19","slug":"thinkphp-%e6%a8%a1%e6%9d%bf%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%ad%e6%95%b0%e7%bb%84%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23776\/","title":{"rendered":"thinkphp \u6a21\u677f\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728"},"content":{"rendered":"

\u5728thinkphp\u6846\u67b6\u4e2d\uff0c\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\u662f\u4e00\u4e2a\u5f88\u5e38\u89c1\u7684\u9700\u6c42\uff0c\u6bd4\u5982\u5728\u6a21\u677f\u4e2d\u6839\u636e\u67d0\u4e2a\u53d8\u91cf\u6765\u63a7\u5236\u67d0\u4e2a\u6a21\u5757\u662f\u5426\u663e\u793a\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u4ecb\u7ecd\u51e0\u79cd\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\u7684\u65b9\u6cd5\u3002<\/p>\n

\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528empty\u51fd\u6570\u5224\u65ad<\/h3>\n
if(!empty($array['key'])){\n    \/\/\u5b58\u5728\n}else{\n    \/\/\u4e0d\u5b58\u5728\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u662f\u6700\u5e38\u7528\u7684\u4e00\u79cd\u3002empty\u51fd\u6570\u53ef\u4ee5\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\uff0c\u5982\u679c\u4e0d\u4e3a\u7a7a\uff0c\u8fd4\u56defalse\uff0c\u5426\u5219\u8fd4\u56detrue\u3002\u6240\u4ee5\uff0c\u5982\u679c\u6211\u4eec\u8981\u5224\u65ad\u6570\u7ec4\u4e2d\u7684\u67d0\u4e2akey\u662f\u5426\u5b58\u5728\uff0c\u53ea\u9700\u8981\u4f7f\u7528!empty\u5373\u53ef\u3002<\/p>\n
\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528isset\u51fd\u6570\u5224\u65ad<\/h3>\n
if(isset($array['key'])){\n    \/\/\u5b58\u5728\n}else{\n    \/\/\u4e0d\u5b58\u5728\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
isset\u51fd\u6570\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u88ab\u58f0\u660e\u8fc7\uff0c\u5728\u5224\u65ad\u6570\u7ec4\u7684\u65f6\u5019\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u4e00\u4e2akey\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u5b58\u5728\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002<\/p>\n
\u65b9\u6cd5\u4e09\uff1a\u4f7f\u7528array_key_exists\u51fd\u6570\u5224\u65ad<\/h3>\n
if(array_key_exists('key',$array)){\n    \/\/\u5b58\u5728\n}else{\n    \/\/\u4e0d\u5b58\u5728\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
array_key_exists\u51fd\u6570\u7528\u4e8e\u5224\u65ad\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684key\uff0c\u5982\u679c\u5b58\u5728\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002\u5b83\u6bd4isset\u51fd\u6570\u66f4\u52a0\u4e25\u683c\uff0c\u53ea\u6709\u5728\u6570\u7ec4\u4e2d\u5b58\u5728\u6307\u5b9akey\u65f6\u624d\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002<\/p>\n
\u65b9\u6cd5\u56db\uff1a\u4f7f\u7528in_array\u51fd\u6570\u5224\u65ad<\/h3>\n
if(in_array('value',$array)){\n    \/\/\u5b58\u5728\n}else{\n    \/\/\u4e0d\u5b58\u5728\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff0cvalue\u4e3a\u6570\u7ec4\u4e2d\u7684\u67d0\u4e2a\u503c\u3002in_array\u51fd\u6570\u7528\u4e8e\u68c0\u67e5\u67d0\u4e2a\u503c\u662f\u5426\u5b58\u5728\u4e8e\u6570\u7ec4\u4e2d\uff0c\u5982\u679c\u5b58\u5728\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u5224\u65ad\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2a\u503c\u6765\u95f4\u63a5\u5224\u65ad\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2akey\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0c\u4ee5\u4e0a\u662f\u56db\u79cd\u5e38\u89c1\u7684\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\u7684\u65b9\u6cd5\u3002\u5728\u4f7f\u7528\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u5176\u4e2d\u7684\u4e00\u79cd\u6216\u8005\u591a\u79cd\u8fdb\u884c\u7ec4\u5408\u4f7f\u7528\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fthinkphp \u6a21\u677f\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\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":"
\u5728thinkphp\u6846\u67b6\u4e2d\uff0c\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\u662f\u4e00\u4e2a\u5f88\u5e38\u89c1\u7684\u9700\u6c42\uff0c\u6bd4\u5982\u5728\u6a21\u677f\u4e2d\u6839\u636e\u67d0\u4e2a\u53d8\u91cf\u6765\u63a7\u5236\u67d0\u4e2a\u6a21\u5757\u662f\u5426\u663e\u793a\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u4ecb\u7ecd\u51e0\u79cd\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\u7684\u65b9\u6cd5\u3002 \u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528empty\u51fd\u6570\u5224\u65ad if(!empty($array[‘key’])){ \/\/\u5b58\u5728 }else{ \/\/\u4e0d\u5b58\u5728 } \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u79cd\u65b9\u6cd5\u662f\u6700\u5e38\u7528\u7684\u4e00\u79cd\u3002empty\u51fd\u6570\u53ef\u4ee5\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\uff0c\u5982\u679c\u4e0d\u4e3a\u7a7a\uff0c\u8fd4\u56defalse\uff0c\u5426\u5219\u8fd4\u56detrue\u3002\u6240\u4ee5\uff0c\u5982\u679c\u6211\u4eec\u8981\u5224\u65ad\u6570\u7ec4\u4e2d\u7684\u67d0\u4e2akey\u662f\u5426\u5b58\u5728\uff0c\u53ea\u9700\u8981\u4f7f\u7528!empty\u5373\u53ef\u3002 \u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528isset\u51fd\u6570\u5224\u65ad if(isset($array[‘key’])){ \/\/\u5b58\u5728 }else{ \/\/\u4e0d\u5b58\u5728 } \u767b\u5f55\u540e\u590d\u5236 isset\u51fd\u6570\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u88ab\u58f0\u660e\u8fc7\uff0c\u5728\u5224\u65ad\u6570\u7ec4\u7684\u65f6\u5019\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u4e00\u4e2akey\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u5b58\u5728\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002 \u65b9\u6cd5\u4e09\uff1a\u4f7f\u7528array_key_exists\u51fd\u6570\u5224\u65ad if(array_key_exists(‘key’,$array)){ \/\/\u5b58\u5728 }else{ \/\/\u4e0d\u5b58\u5728 } \u767b\u5f55\u540e\u590d\u5236 array_key_exists\u51fd\u6570\u7528\u4e8e\u5224\u65ad\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684key\uff0c\u5982\u679c\u5b58\u5728\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002\u5b83\u6bd4isset\u51fd\u6570\u66f4\u52a0\u4e25\u683c\uff0c\u53ea\u6709\u5728\u6570\u7ec4\u4e2d\u5b58\u5728\u6307\u5b9akey\u65f6\u624d\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002 \u65b9\u6cd5\u56db\uff1a\u4f7f\u7528in_array\u51fd\u6570\u5224\u65ad if(in_array(‘value’,$array)){ \/\/\u5b58\u5728 }else{ \/\/\u4e0d\u5b58\u5728 } \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0cvalue\u4e3a\u6570\u7ec4\u4e2d\u7684\u67d0\u4e2a\u503c\u3002in_array\u51fd\u6570\u7528\u4e8e\u68c0\u67e5\u67d0\u4e2a\u503c\u662f\u5426\u5b58\u5728\u4e8e\u6570\u7ec4\u4e2d\uff0c\u5982\u679c\u5b58\u5728\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u5224\u65ad\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2a\u503c\u6765\u95f4\u63a5\u5224\u65ad\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2akey\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u7efc\u4e0a\u6240\u8ff0\uff0c\u4ee5\u4e0a\u662f\u56db\u79cd\u5e38\u89c1\u7684\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\u7684\u65b9\u6cd5\u3002\u5728\u4f7f\u7528\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u5176\u4e2d\u7684\u4e00\u79cd\u6216\u8005\u591a\u79cd\u8fdb\u884c\u7ec4\u5408\u4f7f\u7528\u3002 \u4ee5\u4e0a\u5c31\u662fthinkphp \u6a21\u677f\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f\u5426\u5b58\u5728\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-23776","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23776","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=23776"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23776\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23776"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}