{"id":25177,"date":"2024-11-21T10:13:55","date_gmt":"2024-11-21T02:13:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25177\/"},"modified":"2024-11-21T10:13:55","modified_gmt":"2024-11-21T02:13:55","slug":"laravel%e4%b8%adhead%e8%af%b7%e6%b1%82%e6%96%b9%e6%b3%95%e7%9a%84%e5%b8%b8%e8%a7%81%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25177\/","title":{"rendered":"Laravel\u4e2dHead\u8bf7\u6c42\u65b9\u6cd5\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f"},"content":{"rendered":"

\"Laravel\u4e2dHead\u8bf7\u6c42\u65b9\u6cd5\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f\u63d2\u56fe\"<\/p>\n

Laravel\u4e2dHead\u8bf7\u6c42\u65b9\u6cd5\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f<\/p>\n

\u5728Laravel\u4e2d\uff0cHTTP\u8bf7\u6c42\u65b9\u6cd5\u4e2d\u7684HEAD\u65b9\u6cd5\u901a\u5e38\u88ab\u7528\u4e8e\u83b7\u53d6\u8d44\u6e90\u7684\u5143\u6570\u636e\u800c\u4e0d\u83b7\u53d6\u5b9e\u9645\u7684\u5185\u5bb9\u3002HEAD\u8bf7\u6c42\u548cGET\u8bf7\u6c42\u7c7b\u4f3c\uff0c\u4f46\u662f\u4e0d\u8fd4\u56de\u5b9e\u9645\u7684\u54cd\u5e94\u4e3b\u4f53\u5185\u5bb9\uff0c\u53ea\u8fd4\u56de\u54cd\u5e94\u5934\u4fe1\u606f\u3002\u8fd9\u4f7f\u5f97HEAD\u8bf7\u6c42\u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u573a\u666f\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u548c\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

    \n
  1. \u9a8c\u8bc1\u94fe\u63a5\u7684\u6709\u6548\u6027
    \u4f7f\u7528HEAD\u8bf7\u6c42\u65b9\u6cd5\u53ef\u4ee5\u7528\u4e8e\u9a8c\u8bc1\u94fe\u63a5\u7684\u6709\u6548\u6027\uff0c\u4f8b\u5982\u68c0\u67e5\u4e00\u4e2a\u5916\u90e8\u94fe\u63a5\u662f\u5426\u53ef\u7528\uff0c\u800c\u4e0d\u9700\u8981\u4e0b\u8f7d\u6574\u4e2a\u6587\u4ef6\u5185\u5bb9\u3002\u8fd9\u53ef\u4ee5\u8282\u7701\u5e26\u5bbd\u548c\u51cf\u5c11\u54cd\u5e94\u65f6\u95f4\u3002<\/li>\n<\/ol>\n
    $response = Http::head('https:\/\/example.com\/api\/resource');\nif ($response-&gt;successful()) {\n    \/\/ \u94fe\u63a5\u6709\u6548\n} else {\n    \/\/ \u94fe\u63a5\u65e0\u6548\n}<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. \u83b7\u53d6\u8d44\u6e90\u7684\u5143\u6570\u636e
      \u6709\u65f6\u5019\u6211\u4eec\u53ea\u9700\u8981\u8d44\u6e90\u7684\u5143\u6570\u636e\uff08\u4f8b\u5982\u6587\u4ef6\u5927\u5c0f\u3001\u4fee\u6539\u65f6\u95f4\u7b49\uff09\uff0c\u800c\u4e0d\u9700\u8981\u5b9e\u9645\u5185\u5bb9\u3002\u4f7f\u7528HEAD\u8bf7\u6c42\u53ef\u4ee5\u4ec5\u83b7\u53d6\u8d44\u6e90\u7684\u5143\u6570\u636e\u800c\u4e0d\u4e0b\u8f7d\u6574\u4e2a\u6587\u4ef6\u3002<\/li>\n<\/ol>\n
      $meta = Http::head('https:\/\/example.com\/file.txt')-&gt;header();\n$fileSize = $meta['Content-Length'];\n$lastModified = $meta['Last-Modified'];<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \n
      1. \u68c0\u67e5\u7f51\u9875\u662f\u5426\u53ef\u8bbf\u95ee
        \u5728\u7f51\u9875\u94fe\u63a5\u9a8c\u8bc1\u3001\u722c\u866b\u7b49\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528HEAD\u8bf7\u6c42\u68c0\u67e5\u7f51\u9875\u662f\u5426\u53ef\u8bbf\u95ee\uff0c\u800c\u4e0d\u4e0b\u8f7d\u5168\u90e8\u5185\u5bb9\u3002<\/li>\n<\/ol>\n
        $response = Http::head('https:\/\/example.com\/page.html');\nif ($response-&gt;successful()) {\n    \/\/ \u7f51\u9875\u53ef\u8bbf\u95ee\n} else {\n    \/\/ \u7f51\u9875\u4e0d\u53ef\u8bbf\u95ee\n}<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \n
        1. \u54cd\u5e94\u7f13\u5b58\u63a7\u5236
          \u53ef\u4ee5\u4f7f\u7528HEAD\u8bf7\u6c42\u6765\u68c0\u67e5\u54cd\u5e94\u5934\u4e2d\u7684\u7f13\u5b58\u63a7\u5236\u6307\u4ee4\uff0c\u4f8b\u5982Last-Modified\u3001ETag\u7b49\uff0c\u4ee5\u51b3\u5b9a\u662f\u5426\u9700\u8981\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u54cd\u5e94\u800c\u4e0d\u8bf7\u6c42\u6574\u4e2a\u5185\u5bb9\u3002<\/li>\n<\/ol>\n
          $response = Http::head('https:\/\/example.com\/api\/data');\n$lastModified = $response-&gt;header('Last-Modified');\n$etag = $response-&gt;header('ETag');\n\/\/ \u6839\u636eLast-Modified\u548cETag\u5224\u65ad\u662f\u5426\u9700\u8981\u66f4\u65b0\u7f13\u5b58<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u603b\u7ed3
          \u5728Laravel\u4e2d\uff0cHEAD\u8bf7\u6c42\u65b9\u6cd5\u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u573a\u666f\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u9ad8\u6548\u5730\u8fdb\u884c\u8d44\u6e90\u7684\u5904\u7406\u4e0e\u7ba1\u7406\u3002\u901a\u8fc7\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3HEAD\u8bf7\u6c42\u7684\u5e94\u7528\u573a\u666f\u53ca\u5982\u4f55\u5728Laravel\u4e2d\u4f7f\u7528\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n
          \u4ee5\u4e0a\u5c31\u662fLaravel\u4e2dHead\u8bf7\u6c42\u65b9\u6cd5\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f\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":"
          Laravel\u4e2dHead\u8bf7\u6c42\u65b9\u6cd5\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f \u5728Laravel\u4e2d\uff0cHTTP\u8bf7\u6c42\u65b9\u6cd5\u4e2d\u7684HEAD\u65b9\u6cd5\u901a\u5e38\u88ab\u7528\u4e8e\u83b7\u53d6\u8d44\u6e90\u7684\u5143\u6570\u636e\u800c\u4e0d\u83b7\u53d6\u5b9e\u9645\u7684\u5185\u5bb9\u3002HEAD\u8bf7\u6c42\u548cGET\u8bf7\u6c42\u7c7b\u4f3c\uff0c\u4f46\u662f\u4e0d\u8fd4\u56de\u5b9e\u9645\u7684\u54cd\u5e94\u4e3b\u4f53\u5185\u5bb9\uff0c\u53ea\u8fd4\u56de\u54cd\u5e94\u5934\u4fe1\u606f\u3002\u8fd9\u4f7f\u5f97HEAD\u8bf7\u6c42\u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u573a\u666f\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u548c\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u9a8c\u8bc1\u94fe\u63a5\u7684\u6709\u6548\u6027\u4f7f\u7528HEAD\u8bf7\u6c42\u65b9\u6cd5\u53ef\u4ee5\u7528\u4e8e\u9a8c\u8bc1\u94fe\u63a5\u7684\u6709\u6548\u6027\uff0c\u4f8b\u5982\u68c0\u67e5\u4e00\u4e2a\u5916\u90e8\u94fe\u63a5\u662f\u5426\u53ef\u7528\uff0c\u800c\u4e0d\u9700\u8981\u4e0b\u8f7d\u6574\u4e2a\u6587\u4ef6\u5185\u5bb9\u3002\u8fd9\u53ef\u4ee5\u8282\u7701\u5e26\u5bbd\u548c\u51cf\u5c11\u54cd\u5e94\u65f6\u95f4\u3002 $response = Http::head(‘https:\/\/example.com\/api\/resource’); if ($response-&gt;successful()) { \/\/ \u94fe\u63a5\u6709\u6548 } else { \/\/ \u94fe\u63a5\u65e0\u6548 } \u767b\u5f55\u540e\u590d\u5236 \u83b7\u53d6\u8d44\u6e90\u7684\u5143\u6570\u636e\u6709\u65f6\u5019\u6211\u4eec\u53ea\u9700\u8981\u8d44\u6e90\u7684\u5143\u6570\u636e\uff08\u4f8b\u5982\u6587\u4ef6\u5927\u5c0f\u3001\u4fee\u6539\u65f6\u95f4\u7b49\uff09\uff0c\u800c\u4e0d\u9700\u8981\u5b9e\u9645\u5185\u5bb9\u3002\u4f7f\u7528HEAD\u8bf7\u6c42\u53ef\u4ee5\u4ec5\u83b7\u53d6\u8d44\u6e90\u7684\u5143\u6570\u636e\u800c\u4e0d\u4e0b\u8f7d\u6574\u4e2a\u6587\u4ef6\u3002 $meta = Http::head(‘https:\/\/example.com\/file.txt’)-&gt;header(); $fileSize = $meta[‘Content-Length’]; $lastModified = $meta[‘Last-Modified’]; \u767b\u5f55\u540e\u590d\u5236 \u68c0\u67e5\u7f51\u9875\u662f\u5426\u53ef\u8bbf\u95ee\u5728\u7f51\u9875\u94fe\u63a5\u9a8c\u8bc1\u3001\u722c\u866b\u7b49\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528HEAD\u8bf7\u6c42\u68c0\u67e5\u7f51\u9875\u662f\u5426\u53ef\u8bbf\u95ee\uff0c\u800c\u4e0d\u4e0b\u8f7d\u5168\u90e8\u5185\u5bb9\u3002 $response = Http::head(‘https:\/\/example.com\/page.html’); if ($response-&gt;successful()) { \/\/ \u7f51\u9875\u53ef\u8bbf\u95ee } else { \/\/ \u7f51\u9875\u4e0d\u53ef\u8bbf\u95ee } \u767b\u5f55\u540e\u590d\u5236 \u54cd\u5e94\u7f13\u5b58\u63a7\u5236\u53ef\u4ee5\u4f7f\u7528HEAD\u8bf7\u6c42\u6765\u68c0\u67e5\u54cd\u5e94\u5934\u4e2d\u7684\u7f13\u5b58\u63a7\u5236\u6307\u4ee4\uff0c\u4f8b\u5982Last-Modified\u3001ETag\u7b49\uff0c\u4ee5\u51b3\u5b9a\u662f\u5426\u9700\u8981\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u54cd\u5e94\u800c\u4e0d\u8bf7\u6c42\u6574\u4e2a\u5185\u5bb9\u3002 $response = Http::head(‘https:\/\/example.com\/api\/data’); $lastModified = $response-&gt;header(‘Last-Modified’); $etag = $response-&gt;header(‘ETag’); […]<\/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-25177","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25177","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=25177"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25177\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}