laravel常用HTTP状态码集合

 Status-Code    =
        "100"  ; Section 10.1.1: Continue
      | "101"  ; Section 10.1.2: Switching Protocols
      | "200"  ; Section 10.2.1: OK
      | "201"  ; Section 10.2.2: Created
      | "202"  ; Section 10.2.3: Accepted
      | "203"  ; Section 10.2.4: Non-Authoritative Information
      | "204"  ; Section 10.2.5: No Content
      | "205"  ; Section 10.2.6: Reset Content
      | "206"  ; Section 10.2.7: Partial Content
      | "300"  ; Section 10.3.1: Multiple Choices
      | "301"  ; Section 10.3.2: Moved Permanently
      | "302"  ; Section 10.3.3: Found
      | "303"  ; Section 10.3.4: See Other
      | "304"  ; Section 10.3.5: Not Modified
      | "305"  ; Section 10.3.6: Use Proxy
      | "307"  ; Section 10.3.8: Temporary Redirect
      | "400"  ; Section 10.4.1: Bad Request
      | "401"  ; Section 10.4.2: Unauthorized
      | "402"  ; Section 10.4.3: Payment Required
      | "403"  ; Section 10.4.4: Forbidden
      | "404"  ; Section 10.4.5: Not Found
      | "405"  ; Section 10.4.6: Method Not Allowed
      | "406"  ; Section 10.4.7: Not Acceptable
      | "407"  ; Section 10.4.8: Proxy Authentication Required
      | "408"  ; Section 10.4.9: Request Time-out
      | "409"  ; Section 10.4.10: Conflict
      | "410"  ; Section 10.4.11: Gone
      | "411"  ; Section 10.4.12: Length Required
      | "412"  ; Section 10.4.13: Precondition Failed
      | "413"  ; Section 10.4.14: Request Entity Too Large
      | "414"  ; Section 10.4.15: Request-URI Too Large
      | "415"  ; Section 10.4.16: Unsupported Media Type
      | "416"  ; Section 10.4.17: Requested range not satisfiable
      | "417"  ; Section 10.4.18: Expectation Failed
      | "500"  ; Section 10.5.1: Internal Server Error
      | "501"  ; Section 10.5.2: Not Implemented
      | "502"  ; Section 10.5.3: Bad Gateway
      | "503"  ; Section 10.5.4: Service Unavailable
      | "504"  ; Section 10.5.5: Gateway Time-out
      | "505"  ; Section 10.5.6: HTTP Version not supported
      | extension-code