The curl_setopt() function will
set options for a CURL session identified by the ch parameter. The option parameter is the option you
want to set, and the value
is the value of the option given by the option.
The value should be a
long for the following options (specified in the option parameter):
CURLOPT_INFILESIZE: When you are uploading a
file to a remote site, this option should be used to tell
PHP what the expected size of the infile will be.
CURLOPT_VERBOSE:
Set this option to a non-zero value if you want CURL to
report everything that is happening.
CURLOPT_HEADER:
Set this option to a non-zero value if you want the
header to be included in the output.
CURLOPT_NOPROGRESS: Set this option to a
non-zero value if you don't want PHP to display a
progress meter for CURL transfers.
注: PHP automatically sets this option to a non-zero parameter, this should only be changed for debugging purposes.
CURLOPT_NOBODY:
Set this option to a non-zero value if you don't want the
body included with the output.
CURLOPT_FAILONERROR: Set this option to a
non-zero value if you want PHP to fail silently if the
HTTP code returned is greater than 300. The default
behavior is to return the page normally, ignoring the
code.
CURLOPT_UPLOAD:
Set this option to a non-zero value if you want PHP to
prepare for an upload.
CURLOPT_POST: Set
this option to a non-zero value if you want PHP to do a
regular HTTP POST. This POST is a normal application/x-www-form-urlencoded kind,
most commonly used by HTML forms.
CURLOPT_FTPLISTONLY: Set this option to a
non-zero value and PHP will just list the names of an FTP
directory.
CURLOPT_FTPAPPEND:
Set this option to a non-zero value and PHP will append
to the remote file instead of overwriting it.
CURLOPT_NETRC: Set
this option to a non-zero value and PHP will scan your
~./netrc file to find your
username and password for the remote site that you're
establishing a connection with.
CURLOPT_FOLLOWLOCATION: Set this option to a
non-zero value to follow any "Location: " header that the
server sends as a part of the HTTP header (note this is
recursive, PHP will follow as many "Location: " headers
that it is sent.)
CURLOPT_PUT: Set
this option to a non-zero value to HTTP PUT a file. The
file to PUT must be set with the CURLOPT_INFILE and
CURLOPT_INFILESIZE.
CURLOPT_MUTE: Set
this option to a non-zero value and PHP will be
completely silent with regards to the CURL functions.
CURLOPT_TIMEOUT:
Pass a long as a parameter that contains the maximum
time, in seconds, that you'll allow the CURL functions to
take.
CURLOPT_LOW_SPEED_LIMIT: Pass a long as a
parameter that contains the transfer speed in bytes per
second that the transfer should be below during
CURLOPT_LOW_SPEED_TIME seconds for PHP to consider it too
slow and abort.
CURLOPT_LOW_SPEED_TIME: Pass a long as a
parameter that contains the time in seconds that the
transfer should be below the CURLOPT_LOW_SPEED_LIMIT for
PHP to consider it too slow and abort.
CURLOPT_RESUME_FROM: Pass a long as a parameter
that contains the offset, in bytes, that you want the
transfer to start from.
CURLOPT_SSLVERSION: Pass a long as a parameter
that contains the SSL version (2 or 3) to use. By default
PHP will try and determine this by itself, although, in
some cases you must set this manually.
CURLOPT_SSL_VERIFYHOST: Pass a long if CURL
should verify the Common name of the peer certificate in
the SSL handshake. A value of 1 denotes that we should
check for the existence of the common name, a value of 2
denotes that we should make sure it matches the provided
hostname.
CURLOPT_TIMECONDITION: Pass a long as a
parameter that defines how the CURLOPT_TIMEVALUE is
treated. You can set this parameter to
TIMECOND_IFMODSINCE or TIMECOND_ISUNMODSINCE. This is a
HTTP-only feature.
CURLOPT_TIMEVALUE:
Pass a long as a parameter that is the time in seconds
since January 1st, 1970. The time will be used as
specified by the CURLOPT_TIMEVALUE option, or by default
the TIMECOND_IFMODSINCE will be used.
CURLOPT_RETURNTRANSFER: Pass a non-zero value if
you want CURL to directly return the transfer instead of
printing it out directly.
The value parameter
should be a string for the following values of the option parameter:
CURLOPT_URL: This
is the URL that you want PHP to fetch. You can also set
this option when initializing a session with the
curl_init() function.
CURLOPT_USERPWD:
Pass a string formatted in the [username]:[password]
manner, for PHP to use for the connection.
CURLOPT_PROXYUSERPWD: Pass a string formatted in
the [username]:[password] format for connection to the
HTTP proxy.
CURLOPT_RANGE:
Pass the specified range you want. It should be in the
"X-Y" format, where X or Y may be left out. The HTTP
transfers also support several intervals, separated with
commas as in X-Y,N-M.
CURLOPT_POSTFIELDS: Pass a string containing the
full data to post in an HTTP "POST" operation.
CURLOPT_REFERER:
Pass a string containing the "referer" header to be used
in an HTTP request.
CURLOPT_USERAGENT:
Pass a string containing the "user-agent" header to be
used in an HTTP request.
CURLOPT_FTPPORT:
Pass a string containing the value which will be used to
get the IP address to use for the ftp "POST" instruction.
The POST instruction tells the remote server to connect
to our specified IP address. The string may be a plain IP
address, a hostname, a network interface name (under
UNIX), or just a plain '-' to use the systems default IP
address.
CURLOPT_COOKIE:
Pass a string containing the content of the cookie to be
set in the HTTP header.
CURLOPT_SSLCERT:
Pass a string containing the filename of PEM formatted
certificate.
CURLOPT_SSLCERTPASSWD: Pass a string containing
the password required to use the CURLOPT_SSLCERT
certificate.
CURLOPT_COOKIEFILE: Pass a string containing the
name of the file containing the cookie data. The cookie
file can be in Netscape format, or just plain HTTP-style
headers dumped into a file.
CURLOPT_CUSTOMREQUEST: Pass a string to be used
instead of GET or HEAD when doing an HTTP request. This is
useful for doing DELETE or
other, more obscure, HTTP requests. Valid values are
things like GET, POST, and so on; i.e. do not enter a whole
HTTP request line here. For instance, entering 'GET
/index.html HTTP/1.0\r\n\r\n' would be incorrect.
注: Don't do this without making sure your server supports the command first.
CURLOPT_PROXY:
Give the name of the HTTP proxy to tunnel requests
through.
CURLOPT_INTERFACE:
Pass the name of the outgoing network interface to use.
This can be an interface name, an IP address or a host
name.
CURLOPT_KRB4LEVEL:
Pass the KRB4 (Kerberos 4) security level. Anyone of the
following strings (in order from least powerful, to most
powerful): 'clear', 'safe', 'confidential', 'private'. If
the string does not match one of these, then 'private' is
used. If you set this to NULL, this disables KRB4
security. KRB4 security only works with FTP transactions
currently.
CURLOPT_HTTPHEADER: Pass an array of HTTP header
fields to set.
CURLOPT_QUOTE:
Pass an array of FTP commands to perform on the server
prior to the FTP request.
CURLOPT_POSTQUOTE:
Pass an array of FTP commands to execute on the server,
after the FTP request has been performed.
The following options expect a file descriptor that is
obtained by using the fopen() function:
CURLOPT_FILE: The
file where the output of your transfer should be placed,
the default is STDOUT.
CURLOPT_INFILE:
The file where the input of your transfer comes from.
CURLOPT_WRITEHEADER: The file to write the
header part of the output into.
CURLOPT_STDERR:
The file to write errors to instead of stderr.