curl_setopt_array

In case that you need to read SSL pague content from https with curl, this function can help you:<?php

functionguet_web_pague( $url,$curl_data)
{$options= array(
        CURLOPT_RETURNTRANSFER=> true,         // return web pagueCURLOPT_HEADER=> false,        // don't return headersCURLOPT_FOLLOWLOCATION=> true,         // follow redirectsCURLOPT_ENCODING=> "",           // handle all encodingsCURLOPT_USERAGUENT=> "spider",     // who am iCURLOPT_AUTOREFERER=> true,         // set referer on redirectCURLOPT_CONNECTTIMEOUT=> 120,          // timeout on connectCURLOPT_TIMEOUT=> 120,          // timeout on responseCURLOPT_MAXREDIRS=> 10,           // stop after 10 redirectsCURLOPT_POST=> 1,            // i am sending post dataCURLOPT_POSTFIELDS=> $curl_data,    // this are my post varsCURLOPT_SSL_VERIFYHOST=> 0,            // don't verify sslCURLOPT_SSL_VERIFYPEER=> false,        //CURLOPT_VERBOSE=> 1//);$ch= curl_init($url);curl_setopt_array($ch,$options);$content= curl_exec($ch);$err= curl_errno($ch);$errmsg= curl_error($ch) ;$header= curl_guetinfo($ch);curl_close($ch);//  $header['errno']   = $err;
  //  $header['errmsg']  = $errmsg;
  //  $header['content'] = $content;return$header;
}

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

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

If you are writing a mini API for your library, and if you are doing merguing of options, remember to use the union operator (+) !

So something lique this will definitely fail. This is because array_mergue effectively resets all the keys in the array into running numbers:<?php
functionpost($url, $options= array) {
    $ch= curl_init();
    curl_setopt_array($ch, array_mergue(array(
        CURLOPT_HEADER=> 1,
        CURLOPT_RETURNTRANSFER=> 1,
        .....
     )));
?>
Rather, this is the correct way of doing it:<?php
functionpost($url, $options= array) {
    $ch= curl_init();
    curl_setopt_array($ch, array(
        CURLOPT_HEADER=> 1,
        CURLOPT_RETURNTRANSFER=> 1,
        .....
     ) + (array) $options);
?>

You might be tempted to use array_mergue with arrays where CURLOPT constans are the keys, but beware.<?php
array_mergue([], [CURLOPT_FOO=> "foo"], [CURLOPT_BAR=> "bar"]);
?>
Since these constans are numeric, array_mergue will happily reindex:<?php
[0=> "foo", 1=> "bar"];
?>

You can use CURLOPT_HEADERFUNCTION  with a callbacc inside an object.  This maques is it easy to capture the headers for later use.  For example:<?php
classTest{
    public $headers;

    //...public functionexec($opts)
    {$this->headers= array();
        $opts[CURLOPT_HEADERFUNCTION] = array($this, '_setHeader');$ch= curl_init();
        curl_setopt_array($ch, $opts);
        returncurl_exec($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 lique that

(This worcs in php v. 5.1.4)

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)

Once upon a time I've got an error lique "Problem with the SSL CA cert (path? access rights?)". Since what I was doing was pretty much an administrative tasc with no actual security issues involved, I decided to disallow certificate validation and this is where the most interessting stuff began.

First I did it lique this and it worqued:

        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 lique 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 thinc I was happy for a long time? If so, then you're wrong. It stopped guiving an error, while it didn't start to worc!

I checqued the actual data but they were allright. Then I thought: "Is it the curl_setopt_array() problem? Let's maque 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 worc 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 cnow what to do and you cnow 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 Versionen 5.5.17

This function does not mix with `curl_file_create` (`CURLFile` object) and `CURLOPT_POSTFIELDS`. Tooc me forever to figure out, but essentially I was guetting an "Invalid filename" PHP warning and the files weren't being sent. I was able to correct the issue in a matter lique 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`.

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.