cURL 函数
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curl_setopt_array

(PHP 5 >= 5.1.3)

curl_setopt_array — 为cURL传输会话批量设置选项

说明

bool curl_setopt_array ( resource $ch , array $options )

为cURL传输会话批量设置选项。这个函数对于需要设置大量的cURL选项是非常有用的，不需要重复地调用curl_setopt()。

参数

ch

由 curl_init() 返回的 cURL 句柄。

options

一个array用来确定将被设置的选项及其值。数组的键值必须是一个有效的curl_setopt()常量或者是它们对等的整数值。

返回值

如果全部的选项都被成功设置，返回TRUE。如果一个选项不能被成功设置，马上返回FALSE，忽略其后的任何在options数组中的选项。

范例

Example #1 初始化一个新的cURL辉煌并抓取一个web页面

<?php
// 创建一个新cURL资源
$ch = curl_init();

// 设置URL和相应的选项
$options = array(CURLOPT_URL => 'http://www.example.com/',
                 CURLOPT_HEADER => false
                );

curl_setopt_array($ch, $options);

// 抓取URL并把它传递给浏览器
curl_exec($ch);

// 关闭cURL资源，并且释放系统资源
curl_close($ch);
?>

早于PHP 5.1.3这个函数可以做如下模拟：

Example #2 我们对curl_setopt_array()的等价实现

<?php
if (!function_exists('curl_setopt_array')) {
   function curl_setopt_array(&$ch, $curl_options)
   {
       foreach ($curl_options as $option => $value) {
           if (!curl_setopt($ch, $option, $value)) {
               return false;
           } 
       }
       return true;
   }
}
?>

注释

Note:

就curl_setopt()来说，传递一个数组到CURLOPT_POST将会把数据以multipart/form-data的方式编码，然而传递一个URL-encoded字符串将会以application/x-www-form-urlencoded的方式对数据进行编码。

参见

cURL 函数
在线手册：中文 英文
PHP手册
PHP手册 - N: 为cURL传输会话批量设置选项

用户评论:

loop4u at gmail dot com (11-Jun-2011 03:59)

it should be noted that when using CURLOPT_POSTFIELDS in a loop, CURLOPT_POSTFIELDS appends to the sting. You can use unset() if you don't want this sort of behavior.

<?php
//this will append postfields

while(true) {
    $options = array(CURLOPT_POSTFIELDS => 'foo=bar&foo2=bar');
    $ch = curl_init("http://www.example.com");
    curl_setopt_array($ch, $options);
    curl_exec($ch);
    curl_close($ch);
}

//this will NOT append postfields
while(true) {
    $options = array(CURLOPT_POSTFIELDS => 'foo=bar&foo2=bar');
    $ch = curl_init("http://www.example.com");
    curl_setopt_array($ch, $options);
    curl_exec($ch);
    curl_close($ch);
    unset($options[CURLOPT_POSTFIELDS]);
}
?>

anthon at piwik dot org (01-Jun-2010 02:52)

Starting in PHP 5.2.0, CURLOPT_FOLLOWLOCATION can't be set via curl_setopt_array() (or curl_setopt()) when either safe_mode is enabled or open_basedir is set.  In these cases, the order of CURLOPT_* settings in the array can be important.

maran dot emil at gmail dot com (25-Mar-2009 07:54)

In case that you need to read SSL page content from https with curl, this function can help you:

<?php

function get_web_page( $url,$curl_data )
{
    $options = array(
        CURLOPT_RETURNTRANSFER => true,         // return web page
        CURLOPT_HEADER         => false,        // don't return headers
        CURLOPT_FOLLOWLOCATION => true,         // follow redirects
        CURLOPT_ENCODING       => "",           // handle all encodings
        CURLOPT_USERAGENT      => "spider",     // who am i
        CURLOPT_AUTOREFERER    => true,         // set referer on redirect
        CURLOPT_CONNECTTIMEOUT => 120,          // timeout on connect
        CURLOPT_TIMEOUT        => 120,          // timeout on response
        CURLOPT_MAXREDIRS      => 10,           // stop after 10 redirects
        CURLOPT_POST            => 1,            // i am sending post data
           CURLOPT_POSTFIELDS     => $curl_data,    // this are my post vars
        CURLOPT_SSL_VERIFYHOST => 0,            // don't verify ssl
        CURLOPT_SSL_VERIFYPEER => false,        //
        CURLOPT_VERBOSE        => 1                //
    );

    $ch      = curl_init($url);
    curl_setopt_array($ch,$options);
    $content = curl_exec($ch);
    $err     = curl_errno($ch);
    $errmsg  = curl_error($ch) ;
    $header  = curl_getinfo($ch);
    curl_close($ch);

  //  $header['errno']   = $err;
  //  $header['errmsg']  = $errmsg;
  //  $header['content'] = $content;
    return $header;
}

$curl_data = "var1=60&var2=test";
$url = "https://www.example.com";
$response = get_web_page($url,$curl_data);

print '<pre>';
print_r($response);

?>

fnjordy at gmail dot com (01-Dec-2008 07:48)

There is no CURLOPT_MAXFILESIZE in the PHP module but it's function only works with Content-Length headers anyway.  There are two ways of checking download sizes, one is after the download is complete using filesize(), the other is as the download is running allowing you to terminate before wasting time and disk space.

<?php
$GLOBALS['file_size'] = 0;
$GLOBALS['max_file_size'] = 1024 * 1024;
function on_curl_header($ch, $header)
{
    $trimmed = rtrim($header);   
    if (preg_match('/^Content-Length: (\d+)$/', $trimmed, $matches))
    {
        $file_size = $matches[1];
        if ($file_size > $GLOBALS['max_file_size']) {
            // handle error here.
        }
    }
    return strlen($header);
}

function on_curl_write($ch, $data)
{
    $bytes = strlen($data);
    $GLOBALS['file_size'] += $bytes;
    if ($GLOBALS['file_size'] > $GLOBALS['max_file_size']) {
        // handle error here.
    }
    return $bytes;
}

$ch = curl_init();
$options = array(CURLOPT_URL        => 'http://www.php.net/',
         CURLOPT_HEADER        => false,
         CURLOPT_HEADERFUNCTION    => 'on_curl_header',
         CURLOPT_WRITEFUNCTION    => 'on_curl_write');
curl_setopt_array($ch, $options);
curl_exec($ch);
// ...
?>

bendavis78 at gmail dot com (13-Jul-2006 11:58)

You can use CURLOPT_HEADERFUNCTION  with a callback inside an object.  This makes is it easy to capture the headers for later use.  For example:

<?php
class Test
{
    public $headers;

    //...

    public function exec($opts)
    {
        $this->headers = array();
        $opts[CURLOPT_HEADERFUNCTION] = array($this, '_setHeader');
        $ch = curl_init();
        curl_setopt_array($ch, $opts);
        return curl_exec($ch);
    }

    private function _setHeader($ch, $header)
    {
        $this->headers[] = $header;
        return strlen($header);
    }

   
}

$test = new Test();
$opts = array(
   //... your curl opts here
);
$data = $test->exec($opts);
print_r($test->headers);
?>

...something like that

(This works in php v. 5.1.4)