{"id":22619,"date":"2024-11-21T12:40:16","date_gmt":"2024-11-21T04:40:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22619\/"},"modified":"2024-11-21T12:40:16","modified_gmt":"2024-11-21T04:40:16","slug":"laravel%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8var","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22619\/","title":{"rendered":"laravel\u4e2d\u5982\u4f55\u4f7f\u7528var"},"content":{"rendered":"<p>\u5728laravel\u4e2d\uff0c var\u662f\u4e00\u4e2a\u5168\u5c40\u7684php\u51fd\u6570\uff0c\u7528\u4e8e\u6253\u5370\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u3002\u5728\u4e00\u4e9b\u8c03\u8bd5\u4efb\u52a1\u4e2d\uff0c\u4f7f\u7528var\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u76f4\u89c2\u5730\u67e5\u770b\u53d8\u91cf\u4e2d\u5b58\u50a8\u7684\u503c\u3002\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecdlaravel\u4e2d\u5982\u4f55\u4f7f\u7528var\u51fd\u6570\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5728Laravel\u4e2d\u4f7f\u7528var\u51fd\u6570\uff0c\u6211\u4eec\u9700\u8981\u5728PHP\u4ee3\u7801\u4e2d\u8c03\u7528\u8be5\u51fd\u6570\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u4e86\u5982\u4f55\u5728Laravel\u4e2d\u4f7f\u7528var\u51fd\u6570\uff1a<\/p>\n<pre>$name = \"Tom\";\nvar_dump($name);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53d8\u91cf$name\uff0c\u5e76\u4f7f\u7528var_dump\u51fd\u6570\u8f93\u51fa\u8be5\u53d8\u91cf\u7684\u503c\u3002var_dump\u51fd\u6570\u4f1a\u6253\u5370\u51fa\u53d8\u91cf\u7684\u6570\u636e\u7c7b\u578b\u3001\u957f\u5ea6\u548c\u503c\u7b49\u8be6\u7ec6\u4fe1\u606f\u3002\u5728\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\u65f6\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n<pre>string(3) \"Tom\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e0a\u9762\u7684\u8f93\u51fa\u7ed3\u679c\u4e2d\uff0cstring(3)\u8868\u793a\u53d8\u91cf\u7684\u6570\u636e\u7c7b\u578b\u4e3a\u5b57\u7b26\u4e32\uff0c\u957f\u5ea6\u4e3a3\uff0c &#8220;Tom&#8221;\u5219\u662f\u53d8\u91cf\u5b58\u50a8\u7684\u5b9e\u9645\u503c\u3002<\/p>\n<p>\u9664\u4e86\u4f7f\u7528var_dump\u51fd\u6570\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528var_export\u51fd\u6570\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528var_export\u51fd\u6570\u8f93\u51fa\u6570\u7ec4\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre>$data = array(\n    'name' =&amp;gt; 'Tom',\n    'age' =&amp;gt; 21,\n    'email' =&amp;gt; 'tom@example.com'\n);\nvar_export($data);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5728\u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a$data\u7684\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528var_export\u51fd\u6570\u8f93\u51fa\u5b83\u7684\u503c\u3002\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\u65f6\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n<pre>array (\n  'name' =&amp;gt; 'Tom',\n  'age' =&amp;gt; 21,\n  'email' =&amp;gt; 'tom@example.com',\n)<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8be5\u8f93\u51fa\u7ed3\u679c\u4e0e\u539f\u59cb\u6570\u7ec4\u7684\u683c\u5f0f\u76f8\u540c\uff0c\u65b9\u4fbf\u6211\u4eec\u76f4\u63a5\u67e5\u770b\u6570\u7ec4\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<p>\u9664\u4e86\u4f7f\u7528var\u548cvar_export\u51fd\u6570\uff0cLaravel\u8fd8\u63d0\u4f9b\u4e86\u8bb8\u591a\u5176\u4ed6\u51fd\u6570\uff0c\u7528\u4e8e\u6253\u5370\u8f93\u51fa\u53d8\u91cf\u7684\u503c\uff0c\u5982dd\u548cdump\u51fd\u6570\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528dd\u51fd\u6570\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre>$name = \"Tom\";\ndd($name);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5728\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\u65f6\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n<pre>string(3) \"Tom\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236    \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e0evar_dump\u51fd\u6570\u4e0d\u540c\uff0cdd\u51fd\u6570\u4f1a\u5728\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u540e\u7acb\u5373\u7ec8\u6b62\u7a0b\u5e8f\u7684\u8fd0\u884c\uff0c\u65b9\u4fbf\u6211\u4eec\u76f4\u63a5\u67e5\u770b\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<p>\u603b\u4e4b\uff0cvar\u662f\u4e00\u4e2a\u7b80\u5355\u800c\u5b9e\u7528\u7684PHP\u51fd\u6570\uff0c\u7528\u4e8e\u6253\u5370\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u3002\u5728Laravel\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528var_dump\u3001var_export\u3001dd\u3001dump\u7b49\u51fd\u6570\u6765\u4f7f\u7528var\u51fd\u6570\uff0c\u65b9\u4fbf\u6211\u4eec\u8fdb\u884c\u8c03\u8bd5\u548c\u5f00\u53d1\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662flaravel\u4e2d\u5982\u4f55\u4f7f\u7528var\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":"<p>\u5728laravel\u4e2d\uff0c var\u662f\u4e00\u4e2a\u5168\u5c40\u7684php\u51fd\u6570\uff0c\u7528\u4e8e\u6253\u5370\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u3002\u5728\u4e00\u4e9b\u8c03\u8bd5\u4efb\u52a1\u4e2d\uff0c\u4f7f\u7528var\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u76f4\u89c2\u5730\u67e5\u770b\u53d8\u91cf\u4e2d\u5b58\u50a8\u7684\u503c\u3002\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecdlaravel\u4e2d\u5982\u4f55\u4f7f\u7528var\u51fd\u6570\u3002 \u9996\u5148\uff0c\u5728Laravel\u4e2d\u4f7f\u7528var\u51fd\u6570\uff0c\u6211\u4eec\u9700\u8981\u5728PHP\u4ee3\u7801\u4e2d\u8c03\u7528\u8be5\u51fd\u6570\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u4e86\u5982\u4f55\u5728Laravel\u4e2d\u4f7f\u7528var\u51fd\u6570\uff1a $name = &#8220;Tom&#8221;; var_dump($name); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53d8\u91cf$name\uff0c\u5e76\u4f7f\u7528var_dump\u51fd\u6570\u8f93\u51fa\u8be5\u53d8\u91cf\u7684\u503c\u3002var_dump\u51fd\u6570\u4f1a\u6253\u5370\u51fa\u53d8\u91cf\u7684\u6570\u636e\u7c7b\u578b\u3001\u957f\u5ea6\u548c\u503c\u7b49\u8be6\u7ec6\u4fe1\u606f\u3002\u5728\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\u65f6\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a string(3) &#8220;Tom&#8221; \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u8f93\u51fa\u7ed3\u679c\u4e2d\uff0cstring(3)\u8868\u793a\u53d8\u91cf\u7684\u6570\u636e\u7c7b\u578b\u4e3a\u5b57\u7b26\u4e32\uff0c\u957f\u5ea6\u4e3a3\uff0c &#8220;Tom&#8221;\u5219\u662f\u53d8\u91cf\u5b58\u50a8\u7684\u5b9e\u9645\u503c\u3002 \u9664\u4e86\u4f7f\u7528var_dump\u51fd\u6570\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528var_export\u51fd\u6570\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528var_export\u51fd\u6570\u8f93\u51fa\u6570\u7ec4\u7684\u4f8b\u5b50\uff1a $data = array( &#8216;name&#8217; =&amp;gt; &#8216;Tom&#8217;, &#8216;age&#8217; =&amp;gt; 21, &#8217;email&#8217; =&amp;gt; &#8216;tom@example.com&#8217; ); var_export($data); \u767b\u5f55\u540e\u590d\u5236 \u5728\u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a$data\u7684\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528var_export\u51fd\u6570\u8f93\u51fa\u5b83\u7684\u503c\u3002\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\u65f6\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a array ( &#8216;name&#8217; =&amp;gt; &#8216;Tom&#8217;, &#8216;age&#8217; =&amp;gt; 21, &#8217;email&#8217; =&amp;gt; &#8216;tom@example.com&#8217;, ) \u767b\u5f55\u540e\u590d\u5236 \u8be5\u8f93\u51fa\u7ed3\u679c\u4e0e\u539f\u59cb\u6570\u7ec4\u7684\u683c\u5f0f\u76f8\u540c\uff0c\u65b9\u4fbf\u6211\u4eec\u76f4\u63a5\u67e5\u770b\u6570\u7ec4\u4e2d\u7684\u6570\u636e\u3002 \u9664\u4e86\u4f7f\u7528var\u548cvar_export\u51fd\u6570\uff0cLaravel\u8fd8\u63d0\u4f9b\u4e86\u8bb8\u591a\u5176\u4ed6\u51fd\u6570\uff0c\u7528\u4e8e\u6253\u5370\u8f93\u51fa\u53d8\u91cf\u7684\u503c\uff0c\u5982dd\u548cdump\u51fd\u6570\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528dd\u51fd\u6570\u8f93\u51fa\u53d8\u91cf\u7684\u503c\u7684\u4f8b\u5b50\uff1a $name = &#8220;Tom&#8221;; dd($name); \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\u65f6\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a string(3) &#8220;Tom&#8221; [&hellip;]<\/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-22619","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22619","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=22619"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22619\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}