If you are writing a mini API for your library, and if you are doing merging of options, remember to use the union operator (+) !
So something like this will definitely fail. This is because array_merge effectively resets all the keys in the array into running numbers:
<?php
function post($url, $options = array) {
$ch = curl_init();
curl_setopt_array($ch, array_merge(array(
CURLOPT_HEADER => 1,
CURLOPT_RETURNTRANSFER => 1,
.....
)));
?>
Rather, this is the correct way of doing it:
<?php
function post($url, $options = array) {
$ch = curl_init();
curl_setopt_array($ch, array(
CURLOPT_HEADER => 1,
CURLOPT_RETURNTRANSFER => 1,
.....
) + (array) $options);
?>
curl_setopt_array
(PHP 5 >= 5.1.3, PHP 7)
curl_setopt_array — Set multiple options for a cURL transfer
설명
bool curl_setopt_array
( resource
$ch
, array $options
)Sets multiple options for a cURL session. This function is useful for setting a large amount of cURL options without repetitively calling curl_setopt().
인수
-
ch -
curl_init()가 반환한 cURL 핸들입니다.
-
options -
An array specifying which options to set and their values. The keys should be valid curl_setopt() constants or their integer equivalents.
반환값
Returns TRUE if all options were successfully set. If an option could
not be successfully set, FALSE is immediately returned, ignoring any
future options in the options array.
예제
Example #1 Initializing a new cURL session and fetching a web page
<?php
// create a new cURL resource
$ch = curl_init();
// set URL and other appropriate options
$options = array(CURLOPT_URL => 'http://www.example.com/',
CURLOPT_HEADER => false
);
curl_setopt_array($ch, $options);
// grab URL and pass it to the browser
curl_exec($ch);
// close cURL resource, and free up system resources
curl_close($ch);
?>
Prior to PHP 5.1.3 this function can be simulated with:
Example #2 Our own implementation of curl_setopt_array()
<?php
if (!function_exists('curl_setopt_array')) {
function curl_setopt_array(&$ch, $curl_options)
{
foreach ($curl_options as $option => $value) {
if (!curl_setopt($ch, $option, $value)) {
return false;
}
}
return true;
}
}
?>
주의
Note:
As with curl_setopt(), passing an array to
CURLOPT_POSTwill encode the data as multipart/form-data, while passing a URL-encoded string will encode the data as application/x-www-form-urlencoded.
add a note
User Contributed Notes 10 notes
Lionel ¶
9 years ago
maran dot emil at gmail dot com ¶
15 years ago
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);
?>
bendavis78 at gmail dot com ¶
18 years ago
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($test->headers);
?>
...something like that
(This works in php v. 5.1.4)
lawrence at dub3solutions dot com ¶
5 years ago
This function does not mix with `curl_file_create` (`CURLFile` object) and `CURLOPT_POSTFIELDS`. Took me forever to figure out, but essentially I was getting an "Invalid filename" PHP warning and the files weren't being sent. I was able to correct the issue in a matter like so:
curl_setopt_array($curl, $curlOpts);
curl_setopt($curl, CURLOPT_POSTFIELDS, $postFields);
I removed the `$postFields` value from `$curlOpts` and set it separately using `curl_setopt`.
Al ¶
7 years ago
You might be tempted to use array_merge with arrays where CURLOPT constants are the keys, but beware.
<?php
array_merge([], [CURLOPT_FOO => "foo"], [CURLOPT_BAR => "bar"]);
?>
Since these constants are numeric, array_merge will happily reindex:
<?php
[0 => "foo", 1 => "bar"];
?>
anthon at piwik dot org ¶
14 years ago
Starting in PHP 5.2.0, CURLOPT_FOLLOWLOCATION can't be set via curl_setopt_array() (or curl_setopt()) when either safe_mode is enabled or open_basedir is set. In these cases, the order of CURLOPT_* settings in the array can be important.
mad_elf at maranelda dot org ¶
2 years ago
Important note: the option CURLINFO_HEADER_OUT is *ignored* by curl_setopt_array(). You *must* use curl_setopt() to set this option.
(True in PHP v7.3.27 at least)
Alexander ¶
8 years ago
Once upon a time I've got an error like "Problem with the SSL CA cert (path? access rights?)". Since what I was doing was pretty much an administrative task with no actual security issues involved, I decided to disallow certificate validation and this is where the most interesting stuff began.
First I did it like this and it worked:
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
Next I thought, "But hey, I don't want any hardcoded stuff here. Let's use it in a configurable way!". And so I did something like this:
// in configuration
$CURL_OPTIONS = array(CURLOPT_SSL_VERIFYPEER => 0, CURLOPT_SSL_VERIFYHOST => 0);
...........
// in place of two direct calls from earlier
curl_setopt_array($ch, $CURL_OPTIONS);
And I was so happy, there was no error anymore... and do you think I was happy for a long time? If so, then you're wrong. It stopped giving an error, while it didn't start to work!
I checked the actual data but they were allright. Then I thought: "Is it the curl_setopt_array() problem? Let's make it a cycle." The way it is mentioned in this help, actually.
foreach ($CURL_OPTIONS as $name => $value)
{
curl_setopt($ch, $name, $value);
}
And... it did not work the same way as with the curl_setopt_array() call. And the data were still allright...
So, if by chance you can't set CURL options with the curl_setopt_array() call, then now you know what to do and you know it is definitely not you who is to blame.
P.S.
By the way, the configuration used was:
Linux i-ween.com 3.2.0-4-amd64 #1 SMP Debian 3.2.73-2+deb7u3 x86_64
PHP Version 5.5.17
fnjordy at gmail dot com ¶
15 years ago
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);
// ...
?>
loop4u at gmail dot com ¶
13 years ago
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]);
}
?>
