{"id":22976,"date":"2024-11-21T10:55:48","date_gmt":"2024-11-21T02:55:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22976\/"},"modified":"2024-11-21T10:55:48","modified_gmt":"2024-11-21T02:55:48","slug":"thinkphp%e8%8e%b7%e5%8f%96%e4%b8%8d%e5%88%b0%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22976\/","title":{"rendered":"thinkphp\u83b7\u53d6\u4e0d\u5230\u6570\u636e"},"content":{"rendered":"

\u5728\u4f7f\u7528thinkphp\u7f16\u5199\u7f51\u7ad9\u65f6\uff0c\u5e38\u4f1a\u9047\u5230\u83b7\u53d6\u4e0d\u5230\u6570\u636e\u7684\u95ee\u9898\u3002\u8fd9\u662f\u56e0\u4e3athinkphp\u7684\u6570\u636e\u64cd\u4f5c\u6bd4\u8f83\u590d\u6742\uff0c\u9700\u8981\u638c\u63e1\u4e00\u5b9a\u7684\u6280\u5de7\u624d\u80fd\u6b63\u786e\u64cd\u4f5c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u79cd\u5e38\u89c1\u7684\u83b7\u53d6\u6570\u636e\u65b9\u6cd5\u548c\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n

1.\u4f7f\u7528\u67e5\u8be2\u6784\u9020\u5668\u83b7\u53d6\u6570\u636e<\/p>\n

\u67e5\u8be2\u6784\u9020\u5668\u662fthinkphp\u7684\u4e00\u79cd\u6570\u636e\u64cd\u4f5c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u94fe\u5f0f\u8c03\u7528\u6784\u9020\u5668\u65b9\u6cd5\u6765\u83b7\u53d6\u6570\u636e\u3002\u4f8b\u5982\uff1a<\/p>\n

$data = Db::table('users')-&gt;where('id', $id)-&gt;find();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u83b7\u53d6users\u8868\u4e2dID\u4e3a$id\u7684\u7528\u6237\u4fe1\u606f\u3002\u4f46\u662f\uff0c\u5982\u679c\u5728\u83b7\u53d6\u6570\u636e\u65f6\u6ca1\u6709\u627e\u5230\u5339\u914d\u7684\u7ed3\u679c\uff0c$data\u5c06\u4f1a\u662f\u4e00\u4e2a\u7a7a\u6570\u7ec4\uff0c\u800c\u4e0d\u662fnull\u3002\u8fd9\u662f\u56e0\u4e3afind()\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u5982\u679c\u627e\u4e0d\u5230\u4efb\u4f55\u5339\u914d\u6570\u636e\uff0c\u5b83\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6570\u7ec4\u3002<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528empty()\u51fd\u6570\u6765\u786e\u5b9a\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\uff0c\u4f8b\u5982\uff1a<\/p>\n
$data = Db::table('users')-&gt;where('id', $id)-&gt;find();\nif(empty($data)){\n    \/\/\u627e\u4e0d\u5230\u5339\u914d\u7684\u6570\u636e\n}else{\n    \/\/\u83b7\u53d6\u5230\u4e86\u5339\u914d\u7684\u6570\u636e\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2.\u4f7f\u7528\u6a21\u578b\u7c7b\u83b7\u53d6\u6570\u636e<\/p>\n
\u4f7f\u7528\u6a21\u578b\u7c7b\u83b7\u53d6\u6570\u636e\u662f\u4e00\u4e2a\u66f4\u52a0\u9ad8\u6548\u7684\u65b9\u6cd5\u3002\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u6a21\u578b\u7c7b\uff0c\u4f8b\u5982\uff1a<\/p>\n
namespace appmodel;\nuse thinkModel;\n\nclass Users extends Model{\n    protected $table = 'users';\n    protected $pk = 'id';\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aUsers\u7684\u6a21\u578b\u7c7b\uff0c\u5b83\u7ee7\u627f\u81eaThinkPHP\u7684Model\u7c7b\uff0c\u4ee3\u8868\u6570\u636e\u5e93\u4e2d\u7684users\u8868\uff0c\u5e76\u4e14\u6307\u5b9a\u4e86\u4e3b\u952e\u4e3aID\u3002<\/p>\n
\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6a21\u578b\u7c7b\u6765\u83b7\u53d6\u6570\u636e\uff1a<\/p>\n
$user = Users::get($id);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f\u83b7\u53d6ID\u4e3a$id\u7684\u7528\u6237\u4fe1\u606f\u3002\u5982\u679c\u627e\u5230\u4e86\u5339\u914d\u7684\u6570\u636e\uff0c$user\u5c06\u4f1a\u662f\u4e00\u4e2aUsers\u5bf9\u8c61\uff0c\u5426\u5219\u5c06\u4f1a\u662fnull\u3002<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u5224\u65ad\u6a21\u578b\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a\uff0c\u53ef\u4ee5\u4f7f\u7528is_null()\u51fd\u6570\u6216\u8005empty()\u51fd\u6570\uff0c\u4f8b\u5982\uff1a<\/p>\n
$user = Users::get($id);\nif(is_null($user)){\n    \/\/\u627e\u4e0d\u5230\u5339\u914d\u7684\u6570\u636e\n}else{\n    \/\/\u83b7\u53d6\u5230\u4e86\u5339\u914d\u7684\u6570\u636e\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3.\u4f7f\u7528\u5217\u8868\u65b9\u6cd5\u83b7\u53d6\u6570\u636e<\/p>\n
\u66f4\u591a\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u83b7\u53d6\u4e00\u7ec4\u6570\u636e\u3002\u8fd9\u4e2a\u65f6\u5019\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u65b9\u6cd5\u6765\u83b7\u53d6\u6570\u636e\u3002\u4f8b\u5982\uff1a<\/p>\n
$data = Db::table('users')-&gt;where('age', '&gt;', 18)-&gt;order('id', 'desc')-&gt;limit(10)-&gt;select();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f\u83b7\u53d6\u5e74\u9f84\u5927\u4e8e18\u5c81\u7684\u524d10\u4e2a\u7528\u6237\uff0c\u6309ID\u5012\u5e8f\u6392\u5217\u3002\u5982\u679c\u4e0d\u5b58\u5728\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\uff0c$data\u5c06\u4f1a\u662f\u4e00\u4e2a\u7a7a\u6570\u7ec4\u3002<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u548c\u7b2c\u4e00\u79cd\u65b9\u6cd5\u7c7b\u4f3c\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528empty()\u51fd\u6570\u6765\u5224\u65ad\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\u3002<\/p>\n
$data = Db::table('users')-&gt;where('age', '&gt;', 18)-&gt;order('id', 'desc')-&gt;limit(10)-&gt;select();\nif(empty($data)){\n    \/\/\u627e\u4e0d\u5230\u5339\u914d\u7684\u6570\u636e\n}else{\n    \/\/\u83b7\u53d6\u5230\u4e86\u5339\u914d\u7684\u6570\u636e\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u603b\u7ed3\uff1a<\/p>\n
\u4ee5\u4e0a\u662f\u4e00\u4e9bthinkphp\u83b7\u53d6\u4e0d\u5230\u6570\u636e\u7684\u5e38\u89c1\u89e3\u51b3\u65b9\u6cd5\uff0c\u5e0c\u671b\u80fd\u591f\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\u3002\u5f53\u7136\uff0c\u8fd9\u8fd8\u53ea\u662f\u51b0\u5c71\u4e00\u89d2\uff0c\u6211\u4eec\u5728\u4f7f\u7528thinkphp\u8fc7\u7a0b\u4e2d\u8fd8\u4f1a\u9047\u5230\u66f4\u591a\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\u60c5\u51b5\u3002\u5b66\u4e60thinkphp\u9700\u8981\u4e0d\u65ad\u4e86\u89e3\u548c\u5b9e\u8df5\uff0c\u63d0\u9ad8\u81ea\u5df1\u7684\u7f16\u7a0b\u6c34\u5e73\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fthinkphp\u83b7\u53d6\u4e0d\u5230\u6570\u636e\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":"
\u5728\u4f7f\u7528thinkphp\u7f16\u5199\u7f51\u7ad9\u65f6\uff0c\u5e38\u4f1a\u9047\u5230\u83b7\u53d6\u4e0d\u5230\u6570\u636e\u7684\u95ee\u9898\u3002\u8fd9\u662f\u56e0\u4e3athinkphp\u7684\u6570\u636e\u64cd\u4f5c\u6bd4\u8f83\u590d\u6742\uff0c\u9700\u8981\u638c\u63e1\u4e00\u5b9a\u7684\u6280\u5de7\u624d\u80fd\u6b63\u786e\u64cd\u4f5c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u79cd\u5e38\u89c1\u7684\u83b7\u53d6\u6570\u636e\u65b9\u6cd5\u548c\u89e3\u51b3\u65b9\u6cd5\u3002 1.\u4f7f\u7528\u67e5\u8be2\u6784\u9020\u5668\u83b7\u53d6\u6570\u636e \u67e5\u8be2\u6784\u9020\u5668\u662fthinkphp\u7684\u4e00\u79cd\u6570\u636e\u64cd\u4f5c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u94fe\u5f0f\u8c03\u7528\u6784\u9020\u5668\u65b9\u6cd5\u6765\u83b7\u53d6\u6570\u636e\u3002\u4f8b\u5982\uff1a $data = Db::table(‘users’)-&gt;where(‘id’, $id)-&gt;find(); \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u83b7\u53d6users\u8868\u4e2dID\u4e3a$id\u7684\u7528\u6237\u4fe1\u606f\u3002\u4f46\u662f\uff0c\u5982\u679c\u5728\u83b7\u53d6\u6570\u636e\u65f6\u6ca1\u6709\u627e\u5230\u5339\u914d\u7684\u7ed3\u679c\uff0c$data\u5c06\u4f1a\u662f\u4e00\u4e2a\u7a7a\u6570\u7ec4\uff0c\u800c\u4e0d\u662fnull\u3002\u8fd9\u662f\u56e0\u4e3afind()\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u5982\u679c\u627e\u4e0d\u5230\u4efb\u4f55\u5339\u914d\u6570\u636e\uff0c\u5b83\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6570\u7ec4\u3002 \u89e3\u51b3\u65b9\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528empty()\u51fd\u6570\u6765\u786e\u5b9a\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\uff0c\u4f8b\u5982\uff1a $data = Db::table(‘users’)-&gt;where(‘id’, $id)-&gt;find(); if(empty($data)){ \/\/\u627e\u4e0d\u5230\u5339\u914d\u7684\u6570\u636e }else{ \/\/\u83b7\u53d6\u5230\u4e86\u5339\u914d\u7684\u6570\u636e } \u767b\u5f55\u540e\u590d\u5236 2.\u4f7f\u7528\u6a21\u578b\u7c7b\u83b7\u53d6\u6570\u636e \u4f7f\u7528\u6a21\u578b\u7c7b\u83b7\u53d6\u6570\u636e\u662f\u4e00\u4e2a\u66f4\u52a0\u9ad8\u6548\u7684\u65b9\u6cd5\u3002\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u6a21\u578b\u7c7b\uff0c\u4f8b\u5982\uff1a namespace appmodel; use thinkModel; class Users extends Model{ protected $table = ‘users’; protected $pk = ‘id’; } \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u4ee3\u7801\u8868\u793a\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aUsers\u7684\u6a21\u578b\u7c7b\uff0c\u5b83\u7ee7\u627f\u81eaThinkPHP\u7684Model\u7c7b\uff0c\u4ee3\u8868\u6570\u636e\u5e93\u4e2d\u7684users\u8868\uff0c\u5e76\u4e14\u6307\u5b9a\u4e86\u4e3b\u952e\u4e3aID\u3002 \u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6a21\u578b\u7c7b\u6765\u83b7\u53d6\u6570\u636e\uff1a $user = Users::get($id); \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f\u83b7\u53d6ID\u4e3a$id\u7684\u7528\u6237\u4fe1\u606f\u3002\u5982\u679c\u627e\u5230\u4e86\u5339\u914d\u7684\u6570\u636e\uff0c$user\u5c06\u4f1a\u662f\u4e00\u4e2aUsers\u5bf9\u8c61\uff0c\u5426\u5219\u5c06\u4f1a\u662fnull\u3002 \u89e3\u51b3\u65b9\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5224\u65ad\u6a21\u578b\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a\uff0c\u53ef\u4ee5\u4f7f\u7528is_null()\u51fd\u6570\u6216\u8005empty()\u51fd\u6570\uff0c\u4f8b\u5982\uff1a $user = Users::get($id); […]<\/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-22976","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22976","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=22976"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22976\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}