PHP中curl错误号对照表

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　　curl错误号及错误信息的对照资料
　　CURLE_OK (0)
　　All fine. Proceed as usual.
　　CURLE_UNSUPPORTED_PROTOCOL (1)
The URL you passed to libcurl used a  protocol that this libcurl does not support. The support might be a compile-time  option that you didn't use, it can be a misspelled protocol string or just a  protocol libcurl has no code for.
　　CURLE_FAILED_INIT (2)
Very early initialization code failed. This is  likely to be an internal error or problem, or a resource problem where something  fundamental couldn't get done at init time.
　　CURLE_URL_MALFORMAT (3)
The URL was not properly formatted.
　　CURLE_NOT_BUILT_IN (4)
A requested feature, protocol or option was not  found built-in in this libcurl due to a build-time decision. This means that a  feature or option was not enabled or explicitly disabled when libcurl was built  and in order to get it to function you have to get a rebuilt libcurl.
　　CURLE_COULDNT_RESOLVE_PROXY (5)
Couldn't resolve proxy. The given proxy  host could not be resolved.
　　CURLE_COULDNT_RESOLVE_HOST (6)
Couldn't resolve host. The given remote  host was not resolved.
　　CURLE_COULDNT_CONNECT (7)
Failed to connect() to host or proxy.
　　CURLE_FTP_WEIRD_SERVER_REPLY (8)
After connecting to a FTP server, libcurl  expects to get a certain reply back. This error code implies that it got a  strange or bad reply. The given remote server is probably not an OK FTP  server.
　　CURLE_REMOTE_ACCESS_DENIED (9)
We were denied access to the resource given  in the URL. For FTP, this occurs while trying to change to the remote  directory.
　　CURLE_FTP_ACCEPT_FAILED (10)
While waiting for the server to connect back  when an active FTP session is used, an error code was sent over the control  connection or similar.
　　CURLE_FTP_WEIRD_PASS_REPLY (11)
After having sent the FTP password to the  server, libcurl expects a proper reply. This error code indicates that an  unexpected code was returned.
　　CURLE_FTP_ACCEPT_TIMEOUT (12)
During an active FTP session while waiting  for the server to connect, the CURLOPT_ACCEPTTIMOUT_MS (or the internal default)  timeout expired.
　　CURLE_FTP_WEIRD_PASV_REPLY (13)
libcurl failed to get a sensible result  back from the server as a response to either a PASV or a EPSV command. The  server is flawed.（系统响应超时，请稍后再试）
　　CURLE_FTP_WEIRD_227_FORMAT (14)
FTP servers return a 227-line as a  response to a PASV command. If libcurl fails to parse that line, this return  code is passed back.
　　CURLE_FTP_CANT_GET_HOST (15)
An internal failure to lookup the host used  for the new connection.
　　CURLE_FTP_COULDNT_SET_TYPE (17)
Received an error when trying to set the  transfer mode to binary or ASCII.
　　CURLE_PARTIAL_FILE (18)
A file transfer was shorter or larger than  expected. This happens when the server first reports an expected transfer size,  and then delivers data that doesn't match the previously given size.
　　CURLE_FTP_COULDNT_RETR_FILE (19)
This was either a weird reply to a 'RETR'  command or a zero byte transfer complete.
　　CURLE_QUOTE_ERROR (21)
When sending custom "QUOTE" commands to the remote  server, one of the commands returned an error code that was 400 or higher (for  FTP) or otherwise indicated unsuccessful completion of the command.
　　CURLE_HTTP_RETURNED_ERROR (22)
This is returned if CURLOPT_FAILONERROR is  set TRUE and the HTTP server returns an error code that is >= 400.
　　CURLE_WRITE_ERROR (23)
An error occurred when writing received data to a  local file, or an error was returned to libcurl from a write callback.
　　CURLE_UPLOAD_FAILED (25)
Failed starting the upload. For FTP, the server  typically denied the STOR command. The error buffer usually contains the  server's explanation for this.
　　CURLE_READ_ERROR (26)
There was a problem reading a local file or an error  returned by the read callback.
　　CURLE_OUT_OF_MEMORY (27)
A memory allocation request failed. This is  serious badness and things are severely screwed up if this ever occurs.
　　CURLE_OPERATION_TIMEDOUT (28)
Operation timeout. The specified time-out  period was reached according to the conditions.
　　CURLE_FTP_PORT_FAILED (30)
The FTP PORT command returned error. This  mostly happens when you haven't specified a good enough address for libcurl to  use. See CURLOPT_FTPPORT.
　　CURLE_FTP_COULDNT_USE_REST (31)
The FTP REST command returned error. This  should never happen if the server is sane.
　　CURLE_RANGE_ERROR (33)
The server does not support or accept range  requests.
　　CURLE_HTTP_POST_ERROR (34)
This is an odd error that mainly occurs due to  internal confusion.
　　CURLE_SSL_CONNECT_ERROR (35)
A problem occurred somewhere in the SSL/TLS  handshake. You really want the error buffer and read the message there as it  pinpoints the problem slightly more. Could be certificates (file formats, paths,  permissions), passwords, and others.
　　CURLE_BAD_DOWNLOAD_RESUME (36)
The download could not be resumed because  the specified offset was out of the file boundary.
　　CURLE_FILE_COULDNT_READ_FILE (37)
A file given with FILE:// couldn't be  opened. Most likely because the file path doesn't identify an existing file. Did  you check file permissions?
　　CURLE_LDAP_CANNOT_BIND (38)
LDAP cannot bind. LDAP bind operation  failed.
　　CURLE_LDAP_SEARCH_FAILED (39)
LDAP search failed.
　　CURLE_FUNCTION_NOT_FOUND (41)
Function not found. A required zlib function  was not found.
　　CURLE_ABORTED_BY_CALLBACK (42)
Aborted by callback. A callback returned  "abort" to libcurl.
　　CURLE_BAD_FUNCTION_ARGUMENT (43)
Internal error. A function was called  with a bad parameter.
　　CURLE_INTERFACE_FAILED (45)
Interface error. A specified outgoing  interface could not be used. Set which interface to use for outgoing  connections' source IP address with CURLOPT_INTERFACE.
　　CURLE_TOO_MANY_REDIRECTS (47)
Too many redirects. When following  redirects, libcurl hit the maximum amount. Set your limit with  CURLOPT_MAXREDIRS.
　　CURLE_UNKNOWN_OPTION (48)
An option passed to libcurl is not  recognized/known. Refer to the appropriate documentation. This is most likely a  problem in the program that uses libcurl. The error buffer might contain more  specific information about which exact option it concerns.
　　CURLE_TELNET_OPTION_SYNTAX (49)
A telnet option string was Illegally  formatted.
　　CURLE_PEER_FAILED_VERIFICATION (51)
The remote server's SSL certificate or  SSH md5 fingerprint was deemed not OK.
　　CURLE_GOT_NOTHING (52)
Nothing was returned from the server, and under the  circumstances, getting nothing is considered an error.
　　CURLE_SSL_ENGINE_NOTFOUND (53)
The specified crypto engine wasn't  found.
　　CURLE_SSL_ENGINE_SETFAILED (54)
Failed setting the selected SSL crypto  engine as default!
　　CURLE_SEND_ERROR (55)
Failed sending network data.
　　CURLE_RECV_ERROR (56)
Failure with receiving network data.
　　CURLE_SSL_CERTPROBLEM (58)
problem with the local client certificate.
　　CURLE_SSL_CIPHER (59)
Couldn't use specified cipher.
　　CURLE_SSL_CACERT (60)
Peer certificate cannot be authenticated with known  CA certificates.
　　CURLE_BAD_CONTENT_ENCODING (61)
Unrecognized transfer encoding.
　　CURLE_LDAP_INVALID_URL (62)
Invalid LDAP URL.
　　CURLE_FILESIZE_EXCEEDED (63)
Maximum file size exceeded.
　　CURLE_USE_SSL_FAILED (64)
Requested FTP SSL level failed.
　　CURLE_SEND_FAIL_REWIND (65)
When doing a send operation curl had to rewind  the data to retransmit, but the rewinding operation failed.
　　CURLE_SSL_ENGINE_INITFAILED (66)
Initiating the SSL Engine failed.
　　CURLE_LOGIN_DENIED (67)
The remote server denied curl to login (Added in  7.13.1)
CURLE_TFTP_NOTFOUND (68)
File not found on TFTP server.
　　CURLE_TFTP_PERM (69)
Permission problem on TFTP server.
　　CURLE_REMOTE_DISK_FULL (70)
Out of disk space on the server.
　　CURLE_TFTP_ILLEGAL (71)
Illegal TFTP operation.
　　CURLE_TFTP_UNKNOWNID (72)
Unknown TFTP transfer ID.
　　CURLE_REMOTE_FILE_EXISTS (73)
File already exists and will not be  overwritten.
　　CURLE_TFTP_NOSUCHUSER (74)
This error should never be returned by a  properly functioning TFTP server.
　　CURLE_CONV_FAILED (75)
Character conversion failed.
　　CURLE_CONV_REQD (76)
Caller must register conversion callbacks.
　　CURLE_SSL_CACERT_BADFILE (77)
Problem with reading the SSL CA cert (path?  access rights?)
CURLE_REMOTE_FILE_NOT_FOUND (78)
The resource referenced  in the URL does not exist.
　　CURLE_SSH (79)
An unspecified error occurred during the SSH session.
　　CURLE_SSL_SHUTDOWN_FAILED (80)
Failed to shut down the SSL connection.
　　CURLE_AGAIN (81)
Socket is not ready for send/recv wait till it's ready  and try again. This return code is only returned from curl_easy_recv(3) and  curl_easy_send(3) (Added in 7.18.2)
　　CURLE_SSL_CRL_BADFILE (82)
Failed to load CRL file (Added in 7.19.0)
　　CURLE_SSL_ISSUER_ERROR (83)
Issuer check failed (Added in 7.19.0)
　　CURLE_FTP_PRET_FAILED (84)
The FTP server does not understand the PRET  command at all or does not support the given argument. Be careful when using  CURLOPT_CUSTOMREQUEST, a custom LIST command will be sent with PRET CMD before  PASV as well. (Added in 7.20.0)
　　CURLE_RTSP_CSEQ_ERROR (85)
Mismatch of RTSP CSeq numbers.
　　CURLE_RTSP_SESSION_ERROR (86)
Mismatch of RTSP Session Identifiers.
　　CURLE_FTP_BAD_FILE_LIST (87)
Unable to parse FTP file list (during FTP  wildcard downloading).
　　CURLE_CHUNK_FAILED (88)
Chunk callback reported error.