The definition and usage of curl_setopt function in PHP

这篇文章主要介绍了PHP中curl_setopt函数用法,以实例形式分析了curl_setopt函数的功能、定义、用途及相关的使用技巧,非常具有实用价值,需要的朋友可以参考下

本文实例讲述了PHP中curl_setopt函数用法。分享给大家供大家参考。具体分析如下：

curl_setopt函数是php中一个重要的函数，它可以模仿用户的一些行为，如模仿用户登录，注册等等一些用户可操作的行为哦。

bool curl_setopt (int ch, string option, mixed value)

curl_setopt()函数将为一个CURL会话设置选项。option参数是你想要的设置，value是这个选项给定的值
伪造登录
主站wap登录和discuz论坛wap登录，两边的用户数据资料在同一个表中进行调用

//论坛api登录接口地址：
$uri = "http//yoursiteweb.com/"
//参数数组

$data = array(
'username' => 'username',
'password' => 'password',
);
//操作执行

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $uri);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HEADER,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_exec($ch);

统一两天的sessionid产生机制，改造论坛wap用户验证方法

模仿用户登录实例

function vcurl($url,$post='',$cookie='',$cookiejar='',$referer=''){
$tmpInfo = '';
$cookiepath = getcwd().'./'.$cookiejar;
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
if($referer) {
curl_setopt($curl, CURLOPT_REFERER, $referer);
} else {
curl_setopt($curl, CURLOPT_AUTOREFERER, 1);
}
if($post) {
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
}
if($cookie) {
curl_setopt($curl, CURLOPT_COOKIE, $cookie);
}
if($cookiejar) {
curl_setopt($curl, CURLOPT_COOKIEJAR, $cookiepath);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookiepath);
}
//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_TIMEOUT, 100);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$tmpInfo = curl_exec($curl);
if (curl_errno($curl)) {
echo ' 错误:'.curl_error($curl); 
} 
curl_close($curl); 
return $tmpInfo; 
} 
?>

参数参考如下：

下列选项的值将被作为长整形使用(在option参数中指定)：

CURLOPT_INFILESIZE: When you upload a file to a remote site, this option tells PHP the size of the file you are uploading.
CURLOPT_VERBOSE: If you want CURL to report every unexpected event, set this option to a non-zero value.
CURLOPT_HEADER: If you want to include a header in the output, set this option to a non-zero value.
CURLOPT_NOPROGRESS: If you do not want PHP to display a progress bar for CURL transfers, set this option to a non-zero value.
NOTE: PHP automatically sets this option to a non-zero value, you should only change this option for debugging purposes.
CURLOPT_NOBODY: If you do not want to include the body part in the output, set this option to a non-zero value.
CURLOPT_FAILONERROR: If you want PHP not to display when an error occurs (HTTP code return greater than or equal to 300), set this option to a non-zero value. The default behavior is to return a normal page and ignore the code.
CURLOPT_UPLOAD: If you want PHP to prepare for uploading, set this option to a non-zero value.
CURLOPT_POST: If you want PHP to do a regular HTTP POST, set this option to a non-zero value. This POST is of the ordinary application/x-www-from-urlencoded type, mostly used by HTML forms.
CURLOPT_FTPLISTONLY: Set this option to a non-zero value and PHP will list the FTP directory name list.
CURLOPT_FTPAPPEND: Set this option to a non-zero value and PHP will apply the remote file instead of overwriting it.
CURLOPT_NETRC: Set this option to a non-zero value and PHP will look in your ~./netrc file for the username and password of the remote site you want to connect to.
CURLOPT_FOLLOWLOCATION: Set this option to a non-zero header (like 'Location: ') and the server will send it as part of the HTTP header (note that this is recursive, PHP will send a header of the form 'Location: ' head).
CURLOPT_PUT: Set this option to a non-zero value to upload a file using HTTP. To upload this file you must set the CURLOPT_INFILE and CURLOPT_INFILESIZE options.
CURLOPT_MUTE: Set this option to a non-zero value and PHP will be completely silent for the CURL function.
CURLOPT_TIMEOUT: Set a long integer as the maximum number of seconds.
CURLOPT_LOW_SPEED_LIMIT: Set a long integer to control how many bytes are transmitted.
CURLOPT_LOW_SPEED_TIME: Set a long integer to control how many seconds to transmit the number of bytes specified by CURLOPT_LOW_SPEED_LIMIT.
CURLOPT_RESUME_FROM: Pass a long parameter containing the byte offset address (the start form you want to transfer to).
CURLOPT_SSLVERSION: Pass a long parameter containing the SSL version. By default PHP will do its own hard work, in more security you have to set it manually.
CURLOPT_TIMECONDITION: Pass a long parameter to specify how to handle the CURLOPT_TIMEVALUE parameter. You can set this parameter to TIMECOND_IFMODSINCE or TIMECOND_ISUNMODSINCE. This is only for HTTP.
CURLOPT_TIMEVALUE: Pass a number of seconds from 1970-1-1 to now. This time will be used as the specified value by the CURLOPT_TIMEVALUE option, or by the default TIMECOND_IFMODSINCE.
The values ​​of the following options will be treated as strings:
CURLOPT_URL: This is the URL address you want to retrieve using PHP. You can also set this option during initialization with the curl_init() function.
CURLOPT_USERPWD: Pass a string in the form of [username]:[password] and use PHP to connect.
CURLOPT_PROXYUSERPWD: Pass a string in the format [username]:[password] to connect to the HTTP proxy.
CURLOPT_RANGE: Pass a range you want to specify. It should be in 'X-Y' format, with X or Y being excluded. HTTP transfers also support several intervals, separated by commas (X-Y,N-M).
CURLOPT_POSTFIELDS: Pass a string containing all data as an HTTP "POST" operation.
CURLOPT_REFERER: A string containing a 'referer' header in the HTTP request.
CURLOPT_USERAGENT: A string containing a 'user-agent' header in the HTTP request.
CURLOPT_FTPPORT: Pass an IP address containing the IP address used by the ftp 'POST' command. This POST instruction tells the remote server to connect to the IP address we specified. This string can be an IP address, a host name, a network interface name (under UNIX), or '-' (use the system default IP address).
CURLOPT_COOKIE: Pass a header connection containing an HTTP cookie.
CURLOPT_SSLCERT: Pass a string containing the certificate in PEM format.
CURLOPT_SSLCERTPASSWD: Pass a password containing the necessary password to use the CURLOPT_SSLCERT certificate.
CURLOPT_COOKIEFILE: Pass a string containing the name of the file containing cookie data. This cookie file can be in Netscape format, or it can be a stack of HTTP-style headers stored in the file.
CURLOPT_CUSTOMREQUEST: When making an HTTP request, pass a character to be used by GET or HEAD. This is useful for doing or another, more obscure, HTTP request.

Note: Do not do this before confirming that your server supports the command.

The following options require a file description (obtained by using the fopen() function):

CURLOPT_FILE: Этот файл будет отправленным вами выходным файлом. По умолчанию используется STDOUT.
CURLOPT_INFILE: Этот файл будет отправленным вами входным файлом.
CURLOPT_WRITEHEADER: Этот файл содержит часть заголовка вашего вывода.
CURLOPT_STDERR: В этом файле вместо stderr записаны ошибки.

Резюме: Выше приведено все содержание этой статьи, я надеюсь, что она будет полезна для изучения каждому.

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