预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

Descriptions and uses for these constants are described within the curl_setopt(), curl_multi_setopt() and curl_getinfo() documentation.

CURLOPT_AUTOREFERER ( integer): Available since PHP 5.1.0
CURLOPT_COOKIESESSION ( integer): Available since PHP 5.1.0
CURLOPT_DNS_USE_GLOBAL_CACHE ( integer)
CURLOPT_DNS_CACHE_TIMEOUT ( integer)
CURLOPT_FTP_SSL ( integer): Available since PHP 5.2.0
CURLFTP_CREATE_DIR ( integer): Available since PHP 7.0.7 and cURL 7.19.3
CURLFTP_CREATE_DIR_NONE ( integer): Available since PHP 7.0.7 and cURL 7.19.3
CURLFTP_CREATE_DIR_RETRY ( integer): Available since PHP 7.0.7 and cURL 7.19.3
CURLFTPSSL_TRY ( integer): Available since PHP 5.2.0
CURLFTPSSL_ALL ( integer): Available since PHP 5.2.0
CURLFTPSSL_CONTROL ( integer): Available since PHP 5.2.0
CURLFTPSSL_NONE ( integer): Available since PHP 5.2.0
CURLOPT_PRIVATE ( integer): Available since PHP 5.2.4
CURLOPT_FTPSSLAUTH ( integer): Available since PHP 5.1.0
CURLOPT_PORT ( integer)
CURLOPT_FILE ( integer)
CURLOPT_INFILE ( integer)
CURLOPT_INFILESIZE ( integer)
CURLOPT_URL ( integer)
CURLOPT_PROXY ( integer)
CURLOPT_VERBOSE ( integer)
CURLOPT_HEADER ( integer)
CURLOPT_HTTPHEADER ( integer)
CURLOPT_NOPROGRESS ( integer)
CURLOPT_NOBODY ( integer)
CURLOPT_FAILONERROR ( integer)
CURLOPT_UPLOAD ( integer)
CURLOPT_POST ( integer)
CURLOPT_FTPLISTONLY ( integer)
CURLOPT_FTPAPPEND ( integer)
CURLOPT_FTP_CREATE_MISSING_DIRS ( integer)
CURLOPT_NETRC ( integer)
CURLOPT_FOLLOWLOCATION ( integer): This constant is not available when open_basedir or safe_mode are enabled.
CURLOPT_FTPASCII ( integer)
CURLOPT_PUT ( integer)
CURLOPT_MUTE ( integer)
CURLOPT_USERPWD ( integer)
CURLOPT_PROXYUSERPWD ( integer)
CURLOPT_RANGE ( integer)
CURLOPT_TIMEOUT ( integer)
CURLOPT_TIMEOUT_MS ( integer)
CURLOPT_TCP_NODELAY ( integer): Available since PHP 5.2.1
CURLOPT_POSTFIELDS ( integer)
CURLOPT_PROGRESSFUNCTION ( integer): Available since PHP 5.3.0
CURLOPT_REFERER ( integer)
CURLOPT_USERAGENT ( integer)
CURLOPT_FTPPORT ( integer)
CURLOPT_FTP_USE_EPSV ( integer)
CURLOPT_LOW_SPEED_LIMIT ( integer)
CURLOPT_LOW_SPEED_TIME ( integer)
CURLOPT_RESUME_FROM ( integer)
CURLOPT_COOKIE ( integer)
CURLOPT_SSLCERT ( integer)
CURLOPT_SSLCERTPASSWD ( integer)
CURLOPT_WRITEHEADER ( integer)
CURLOPT_SSL_VERIFYHOST ( integer)
CURLOPT_COOKIEFILE ( integer)
CURLOPT_SSLVERSION ( integer)
CURL_SSLVERSION_DEFAULT ( integer)
CURL_SSLVERSION_TLSv1 ( integer)
CURL_SSLVERSION_SSLv2 ( integer)
CURL_SSLVERSION_SSLv3 ( integer)
CURL_SSLVERSION_TLSv1_0 ( integer): Available since PHP 5.5.19 and 5.6.3
CURL_SSLVERSION_TLSv1_1 ( integer): Available since PHP 5.5.19 and 5.6.3
CURL_SSLVERSION_TLSv1_2 ( integer): Available since PHP 5.5.19 and 5.6.3
CURLOPT_TIMECONDITION ( integer)
CURLOPT_TIMEVALUE ( integer)
CURLOPT_CUSTOMREQUEST ( integer)
CURLOPT_STDERR ( integer)
CURLOPT_TRANSFERTEXT ( integer)
CURLOPT_RETURNTRANSFER ( integer)
CURLOPT_QUOTE ( integer)
CURLOPT_POSTQUOTE ( integer)
CURLOPT_INTERFACE ( integer)
CURLOPT_KRB4LEVEL ( integer)
CURLOPT_HTTPPROXYTUNNEL ( integer)
CURLOPT_FILETIME ( integer)
CURLOPT_WRITEFUNCTION ( integer)
CURLOPT_READFUNCTION ( integer)
CURLOPT_PASSWDFUNCTION ( integer)
CURLOPT_HEADERFUNCTION ( integer)
CURLOPT_MAXREDIRS ( integer)
CURLOPT_MAXCONNECTS ( integer)
CURLOPT_CLOSEPOLICY ( integer): Removed in PHP 5.6.0.
CURLOPT_FRESH_CONNECT ( integer)
CURLOPT_FORBID_REUSE ( integer)
CURLOPT_RANDOM_FILE ( integer)
CURLOPT_EGDSOCKET ( integer)
CURLOPT_CONNECTTIMEOUT ( integer)
CURLOPT_CONNECTTIMEOUT_MS ( integer)
CURLOPT_SSL_VERIFYPEER ( integer)
CURLOPT_CAINFO ( integer)
CURLOPT_CAPATH ( integer)
CURLOPT_COOKIEJAR ( integer)
CURLOPT_SSL_CIPHER_LIST ( integer)
CURLOPT_BINARYTRANSFER ( integer)
CURLOPT_NOSIGNAL ( integer)
CURLOPT_PROXYTYPE ( integer): Available as of cURL 7.10.
CURLOPT_BUFFERSIZE ( integer)
CURLOPT_HTTPGET ( integer)
CURLOPT_HTTP_VERSION ( integer)
CURLOPT_SSLKEY ( integer)
CURLOPT_SSLKEYTYPE ( integer)
CURLOPT_SSLKEYPASSWD ( integer)
CURLOPT_SSLENGINE ( integer)
CURLOPT_SSLENGINE_DEFAULT ( integer)
CURLOPT_SSLCERTTYPE ( integer)
CURLOPT_CRLF ( integer)
CURLOPT_ENCODING ( integer)
CURLOPT_PROXYPORT ( integer)
CURLOPT_UNRESTRICTED_AUTH ( integer)
CURLOPT_FTP_USE_EPRT ( integer)
CURLOPT_HTTP200ALIASES ( integer)
CURLOPT_HTTPAUTH ( integer)
CURLAUTH_BASIC ( integer)
CURLAUTH_DIGEST ( integer)
CURLAUTH_GSSNEGOTIATE ( integer)
CURLAUTH_NEGOTIATE ( integer): Available since PHP 7.0.7 and cURL 7.38.0.
CURLAUTH_NTLM ( integer)
CURLAUTH_NTLM_WB ( integer): Available since PHP 7.0.7 and cURL 7.22.0
CURLAUTH_ANY ( integer)
CURLAUTH_ANYSAFE ( integer)
CURLOPT_PROXYAUTH ( integer)
CURLOPT_MAX_RECV_SPEED_LARGE ( integer): Available since PHP 5.4.0 and cURL 7.15.5
CURLOPT_MAX_SEND_SPEED_LARGE ( integer): Available since PHP 5.4.0 and cURL 7.15.5
CURLOPT_HEADEROPT ( integer): Available since PHP 7.0.7 and cURL 7.37.0
CURLOPT_PROXYHEADER ( integer): Available since PHP 7.0.7 and cURL 7.37.0
CURLCLOSEPOLICY_LEAST_RECENTLY_USED ( integer): Removed in PHP 5.6.0.
CURLCLOSEPOLICY_LEAST_TRAFFIC ( integer): Removed in PHP 5.6.0.
CURLCLOSEPOLICY_SLOWEST ( integer): Removed in PHP 5.6.0.
CURLCLOSEPOLICY_CALLBACK ( integer): Removed in PHP 5.6.0.
CURLCLOSEPOLICY_OLDEST ( integer): Removed in PHP 5.6.0.
CURLINFO_PRIVATE ( integer): Available since PHP 5.2.4
CURLINFO_EFFECTIVE_URL ( integer)
CURLINFO_HTTP_CODE ( integer)
CURLINFO_HEADER_OUT ( integer): Available since PHP 5.1.3
CURLINFO_HEADER_SIZE ( integer)
CURLINFO_REQUEST_SIZE ( integer)
CURLINFO_TOTAL_TIME ( integer)
CURLINFO_NAMELOOKUP_TIME ( integer)
CURLINFO_CONNECT_TIME ( integer)
CURLINFO_PRETRANSFER_TIME ( integer)
CURLINFO_SIZE_UPLOAD ( integer)
CURLINFO_SIZE_DOWNLOAD ( integer)
CURLINFO_SPEED_DOWNLOAD ( integer)
CURLINFO_SPEED_UPLOAD ( integer)
CURLINFO_FILETIME ( integer)
CURLINFO_SSL_VERIFYRESULT ( integer)
CURLINFO_CONTENT_LENGTH_DOWNLOAD ( integer)
CURLINFO_CONTENT_LENGTH_UPLOAD ( integer)
CURLINFO_STARTTRANSFER_TIME ( integer)
CURLINFO_CONTENT_TYPE ( integer)
CURLINFO_REDIRECT_TIME ( integer)
CURLINFO_REDIRECT_COUNT ( integer)
CURLINFO_REDIRECT_URL ( string): Available since PHP 5.3.7
CURLINFO_PRIMARY_IP ( string): Available since PHP 5.4.7
CURLINFO_PRIMARY_PORT ( integer): Available since PHP 5.4.7
CURLINFO_LOCAL_IP ( string): Available since PHP 5.4.7
CURLINFO_LOCAL_PORT ( integer): Available since PHP 5.4.7
CURL_PUSH_OK ( integer): Available since PHP 7.1.0 and cURL 7.44.0
CURL_PUSH_DENY ( integer): Available since PHP 7.1.0 and cURL 7.44.0
CURL_REDIR_POST_301 ( integer): Available since PHP 7.0.7 and cURL 7.18.2
CURL_REDIR_POST_302 ( integer): Available since PHP 7.0.7 and cURL 7.18.2
CURL_REDIR_POST_303 ( integer): Available since PHP 7.0.7 and cURL 7.25.1
CURL_REDIR_POST_ALL ( integer): Available since PHP 7.0.7 and cURL 7.18.2
CURL_TIMECOND_IFMODSINCE ( integer)
CURL_TIMECOND_IFUNMODSINCE ( integer)
CURL_TIMECOND_LASTMOD ( integer)
CURL_VERSION_IPV6 ( integer)
CURL_VERSION_KERBEROS4 ( integer)
CURL_VERSION_KERBEROS5 ( integer): Available since PHP 7.0.7 and cURL 7.40.0
CURL_VERSION_HTTP2 ( integer): Available since PHP 5.5.24 and 5.6.8 and cURL 7.33.0
CURL_VERSION_PSL ( integer): Available since PHP 7.0.7 and cURL 7.47.0
CURL_VERSION_SSL ( integer)
CURL_VERSION_UNIX_SOCKETS ( integer): Available since PHP 7.0.7 and cURL 7.40.0
CURL_VERSION_LIBZ ( integer)
CURLVERSION_NOW ( integer)
CURLE_OK ( integer)
CURLE_UNSUPPORTED_PROTOCOL ( integer)
CURLE_FAILED_INIT ( integer)
CURLE_URL_MALFORMAT ( integer)
CURLE_URL_MALFORMAT_USER ( integer)
CURLE_COULDNT_RESOLVE_PROXY ( integer)
CURLE_COULDNT_RESOLVE_HOST ( integer)
CURLE_COULDNT_CONNECT ( integer)
CURLE_FTP_WEIRD_SERVER_REPLY ( integer)
CURLE_FTP_ACCESS_DENIED ( integer)
CURLE_FTP_USER_PASSWORD_INCORRECT ( integer)
CURLE_FTP_WEIRD_PASS_REPLY ( integer)
CURLE_FTP_WEIRD_USER_REPLY ( integer)
CURLE_FTP_WEIRD_PASV_REPLY ( integer)
CURLE_FTP_WEIRD_227_FORMAT ( integer)
CURLE_FTP_CANT_GET_HOST ( integer)
CURLE_FTP_CANT_RECONNECT ( integer)
CURLE_FTP_COULDNT_SET_BINARY ( integer)
CURLE_PARTIAL_FILE ( integer)
CURLE_FTP_COULDNT_RETR_FILE ( integer)
CURLE_FTP_WRITE_ERROR ( integer)
CURLE_FTP_QUOTE_ERROR ( integer)
CURLE_HTTP_NOT_FOUND ( integer)
CURLE_WRITE_ERROR ( integer)
CURLE_MALFORMAT_USER ( integer)
CURLE_FTP_COULDNT_STOR_FILE ( integer)
CURLE_READ_ERROR ( integer)
CURLE_OUT_OF_MEMORY ( integer)
CURLE_OPERATION_TIMEOUTED ( integer)
CURLE_FTP_COULDNT_SET_ASCII ( integer)
CURLE_FTP_PORT_FAILED ( integer)
CURLE_FTP_COULDNT_USE_REST ( integer)
CURLE_FTP_COULDNT_GET_SIZE ( integer)
CURLE_HTTP_RANGE_ERROR ( integer)
CURLE_HTTP_POST_ERROR ( integer)
CURLE_SSL_CONNECT_ERROR ( integer)
CURLE_FTP_BAD_DOWNLOAD_RESUME ( integer)
CURLE_FILE_COULDNT_READ_FILE ( integer)
CURLE_LDAP_CANNOT_BIND ( integer)
CURLE_LDAP_SEARCH_FAILED ( integer)
CURLE_LIBRARY_NOT_FOUND ( integer)
CURLE_FUNCTION_NOT_FOUND ( integer)
CURLE_ABORTED_BY_CALLBACK ( integer)
CURLE_BAD_FUNCTION_ARGUMENT ( integer)
CURLE_BAD_CALLING_ORDER ( integer)
CURLE_HTTP_PORT_FAILED ( integer)
CURLE_BAD_PASSWORD_ENTERED ( integer)
CURLE_TOO_MANY_REDIRECTS ( integer)
CURLE_UNKNOWN_TELNET_OPTION ( integer)
CURLE_TELNET_OPTION_SYNTAX ( integer)
CURLE_OBSOLETE ( integer)
CURLE_SSL_PEER_CERTIFICATE ( integer)
CURLE_GOT_NOTHING ( integer)
CURLE_SSL_ENGINE_NOTFOUND ( integer)
CURLE_SSL_ENGINE_SETFAILED ( integer)
CURLE_SEND_ERROR ( integer)
CURLE_RECV_ERROR ( integer)
CURLE_SHARE_IN_USE ( integer)
CURLE_SSL_CERTPROBLEM ( integer)
CURLE_SSL_CIPHER ( integer)
CURLE_SSL_CACERT ( integer)
CURLE_BAD_CONTENT_ENCODING ( integer)
CURLE_LDAP_INVALID_URL ( integer)
CURLE_FILESIZE_EXCEEDED ( integer)
CURLE_FTP_SSL_FAILED ( integer)
CURLE_SSH ( integer): Available since PHP 5.3.0 and cURL 7.16.1.
CURLFTPAUTH_DEFAULT ( integer): Available since PHP 5.1.0
CURLFTPAUTH_SSL ( integer): Available since PHP 5.1.0
CURLFTPAUTH_TLS ( integer): Available since PHP 5.1.0
CURLPROXY_HTTP ( integer): Available since cURL 7.10.
CURLPROXY_HTTP_1_0 ( integer): Available since PHP 7.0.7 and cURL 7.19.3
CURLPROXY_SOCKS4 ( integer): Available since PHP 5.2.10 and cURL 7.10.
CURLPROXY_SOCKS5 ( integer): Available since cURL 7.10.
CURL_NETRC_OPTIONAL ( integer)
CURL_NETRC_IGNORED ( integer)
CURL_NETRC_REQUIRED ( integer)
CURL_HTTP_VERSION_NONE ( integer)
CURL_HTTP_VERSION_1_0 ( integer)
CURL_HTTP_VERSION_1_1 ( integer)
CURL_HTTP_VERSION_2 ( integer): Available since PHP 7.0.7 and cURL 7.43.0
CURL_HTTP_VERSION_2TLS ( integer): Available since PHP 7.0.7 and cURL 7.47.0
CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE ( integer): Available since PHP 7.0.7 and cURL 7.49.0
CURLM_CALL_MULTI_PERFORM ( integer)
CURLM_OK ( integer)
CURLM_BAD_HANDLE ( integer)
CURLM_BAD_EASY_HANDLE ( integer)
CURLM_OUT_OF_MEMORY ( integer)
CURLM_INTERNAL_ERROR ( integer)
CURLMSG_DONE ( integer)
CURLOPT_KEYPASSWD ( integer)
CURLOPT_SSH_AUTH_TYPES ( integer)
CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 ( integer)
CURLOPT_SSH_PRIVATE_KEYFILE ( integer)
CURLOPT_SSH_PUBLIC_KEYFILE ( integer)
CURLOPT_SSL_OPTIONS ( integer): Available since PHP 5.5.0 and cURL 7.25.0
CURLSSLOPT_ALLOW_BEAST ( integer): Available since PHP 5.5.0 and cURL 7.25.0
CURLSSLOPT_NO_REVOKE ( integer): Available since PHP 7.0.7 and cURL 7.44.0
CURLOPT_USERNAME ( integer): Available since PHP 5.5.0 and cURL 7.19.1
CURLOPT_SASL_IR ( integer): Available since PHP 7.0.7 and cURL 7.31.0
CURLOPT_DNS_INTERFACE ( integer): Available since PHP 7.0.7 and cURL 7.33.0
CURLOPT_DNS_LOCAL_IP4 ( integer): Available since PHP 7.0.7 and cURL 7.33.0
CURLOPT_DNS_LOCAL_IP6 ( integer): Available since PHP 7.0.7 and cURL 7.33.0
CURLOPT_XOAUTH2_BEARER ( integer): Available since PHP 7.0.7 and cURL 7.33.0
CURLOPT_LOGIN_OPTIONS ( integer): Available since PHP 7.0.7 and cURL 7.34.0
CURLOPT_EXPECT_100_TIMEOUT_MS ( integer): Available since PHP 7.0.7 and cURL 7.36.0
CURLOPT_SSL_ENABLE_ALPN ( integer): Available since PHP 7.0.7 and cURL 7.36.0
CURLOPT_SSL_ENABLE_NPN ( integer): Available since PHP 7.0.7 and cURL 7.36.0
CURLOPT_PINNEDPUBLICKEY ( integer): Available since PHP 7.0.7 and cURL 7.39.0
CURLOPT_UNIX_SOCKET_PATH ( integer): Available since PHP 7.0.7 and cURL 7.40.0
CURLOPT_SSL_VERIFYSTATUS ( integer): Available since PHP 7.0.7 and cURL 7.41.0
CURLOPT_PATH_AS_IS ( integer): Available since PHP 7.0.7 and cURL 7.42.0
CURLOPT_SSL_FALSESTART ( integer): Available since PHP 7.0.7 and cURL 7.42.0
CURLOPT_PIPEWAIT ( integer): Available since PHP 7.0.7 and cURL 7.43.0
CURLOPT_PROXY_SERVICE_NAME ( integer): Available since PHP 7.0.7 and cURL 7.43.0
CURLOPT_SERVICE_NAME ( integer): Available since PHP 7.0.7 and cURL 7.43.0
CURLOPT_DEFAULT_PROTOCOL ( integer): Available since PHP 7.0.7 and cURL 7.45.0
CURLOPT_STREAM_WEIGHT ( integer): Available since PHP 7.0.7 and cURL 7.46.0
CURLOPT_TFTP_NO_OPTIONS ( integer): Available since PHP 7.0.7 and cURL 7.48.0
CURLOPT_CONNECT_TO ( integer): Available since PHP 7.0.7 and cURL 7.49.0
CURLOPT_TCP_FASTOPEN ( integer): Available since PHP 7.0.7 and cURL 7.49.0
CURLMOPT_PIPELINING ( integer): Available since PHP 5.5.0 and cURL 7.16.0.
CURLMOPT_MAXCONNECTS ( integer): Available since PHP 5.5.0 and cURL 7.16.3.
CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE ( integer): Available since PHP 7.0.7 and cURL 7.30.0
CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE ( integer): Available since PHP 7.0.7 and cURL 7.30.0
CURLMOPT_MAX_HOST_CONNECTIONS ( integer): Available since PHP 7.0.7 and cURL 7.30.0
CURLMOPT_MAX_PIPELINE_LENGTH ( integer): Available since PHP 7.0.7 and cURL 7.30.0
CURLMOPT_MAX_TOTAL_CONNECTIONS ( integer): Available since PHP 7.0.7 and cURL 7.30.0
CURLMOPT_PUSHFUNCTION ( integer): Available since PHP 7.1.0 and cURL 7.44.0
CURLSSH_AUTH_AGENT ( integer): Available since PHP 7.0.7 and cURL 7.28.0
CURLSSH_AUTH_ANY ( integer)
CURLSSH_AUTH_DEFAULT ( integer)
CURLSSH_AUTH_HOST ( integer)
CURLSSH_AUTH_KEYBOARD ( integer)
CURLSSH_AUTH_NONE ( integer)
CURLSSH_AUTH_PASSWORD ( integer)
CURLSSH_AUTH_PUBLICKEY ( integer)
CURL_WRAPPERS_ENABLED ( integer): Defined if PHP was configured with --with-curlwrappers . Moved to PECL in PHP 5.5.0.
CURLPAUSE_ALL ( integer): Available since PHP 5.5.0 and cURL 7.18.0.
CURLPAUSE_CONT ( integer): Available since PHP 5.5.0 and cURL 7.18.0.
CURLPAUSE_RECV ( integer): Available since PHP 5.5.0 and cURL 7.18.0.
CURLPAUSE_RECV_CONT ( integer): Available since PHP 5.5.0 and cURL 7.18.0.
CURLPAUSE_SEND ( integer): Available since PHP 5.5.0 and cURL 7.18.0.
CURLPAUSE_SEND_CONT ( integer): Available since PHP 5.5.0 and cURL 7.18.0.
CURLPIPE_NOTHING ( integer): Available since PHP 7.0.0 and cURL 7.43.0.
CURLPIPE_HTTP1 ( integer): Available since PHP 7.0.0 and cURL 7.43.0.
CURLPIPE_MULTIPLEX ( integer): Available since PHP 7.0.0 and cURL 7.43.0.
CURLPROXY_SOCKS4A ( integer): Available since PHP 5.5.23 and PHP 5.6.7 and cURL 7.18.0.
CURLPROXY_SOCKS5_HOSTNAME ( integer): Available since PHP 5.5.23 and PHP 5.6.7 and cURL 7.18.0.
CURLHEADER_SEPARATE ( integer): Available since PHP 7.0.7 and cURL 7.37.0.
CURLHEADER_UNIFIED ( integer): Available since PHP 7.0.7 and cURL 7.37.0.
CURLPROTO_SMB ( integer): Available since PHP 7.0.7 and cURL 7.40.0.
CURLPROTO_SMBS ( integer): Available since PHP 7.0.7 and cURL 7.40.0.