PHP cUrl get all integrated variables data

Question

I want to loop through all available cUrl integrated commands.

I know that this is not the current syntax but just to clarify so you'll get the idea...

$s = curl_init();

foreach (curl_setopt($s, [THIS IS WHAT I AM LOOKING FOR] ) as $q) {
    echo $q . '<br />';
}

I'm expecting to get all integrated cUrl commands (for example):

CURLOPT_URL
CURLOPT_HTTPHEADER
CURLOPT_TIMEOUT
etc...

Answer 1

get_defined_constants return all defined constants

These constants contain curl commands you want!

php.net

get all curl defined variables :

$arr = get_defined_constants(true);
$curl_vars = $arr['curl'];

and if you want just "CURLOPT_" options, use this:

$arr = get_defined_constants(true);
$curl_vars = $arr['curl'];

$array = array_filter(array_keys($curl_vars), function ($k){ 
    return strpos($k, 'CURLOPT_') === 0;
});

or you can use foreach to do this:

$arr = get_defined_constants(true);
$curl_vars = $arr['curl'];

foreach ($curl_vars as $key => $value) {
    if(strpos($key,'CURLOPT_') === 0){
        echo $key; // here!
    }
}