//CURL send file
$target_url="https://usman.rubiantoro.com/upload_listener.php";
$folderUpload = "./assets/uploads";
$fileFoto = (object) @$_FILES['foto'];
$file_name_with_full_path="$folderUpload/".$fileFoto->name;
if (function_exists('curl_file_create')) {
 $cFile = curl_file_create($file_name_with_full_path);
} else {
 $cFile = '@' . realpath($file_name_with_full_path);
}

$post = array('extra_info' => '123456','file_contents'=> $cFile);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$target_url);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
$result=curl_exec ($ch);
curl_close ($ch);

//Upload file listener
$folderUpload = "./assets/uploads";
if (!is_dir($folderUpload)) {
 # jika tidak maka folder harus dibuat terlebih dahulu
 mkdir($folderUpload, 0777, $rekursif = true);
}

$fileFoto = (object) @$_FILES['file_contents'];

$uploadFotoSukses = move_uploaded_file(
 $fileFoto->tmp_name, "{$folderUpload}/{$fileFoto->name}"
);

if($uploadFotoSukses){
 echo "File is valid, and was successfully uploaded.\n";
}

//CURL listener data
$json = file_get_contents('php://input');
if ($json) {
 $dt = json_decode($json,1);
 echo "<pre>".print_r($dt,1)."</pre>";
}

//CURL Post data
$data = array(
 "no_wa" => '08975835238',
 "nama" =>'Usman Rubiantoro',
 "website" =>'usman.rubiantoro.com',
);

$data_string = json_encode($data);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_VERBOSE, 0);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 360);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
 'Content-Type: application/json',
 'Content-Length: ' . strlen($data_string))
);

echo $res=curl_exec($ch);
curl_close($ch);

//membuat user baru, 192.168.1.100 adl server yg akan me-remote
CREATE USER 'new_user'@'192.168.1.100' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'new_user'@'192.168.1.100' WITH GRANT OPTION;
FLUSH PRIVILEGES;

//open connection firewall
ufw allow mysql

//setting mysql server
vi /etc/mysql/mariadb.conf.d/50-server.cnf
bind-address = ip_server_anda
max_connections = 1000

//restart mysql service
/etc/init.d/mysql restart

let form = document.querySelector('#form_id');
const formEntries = new FormData(form).entries();
const input_data = Object.assign(...Array.from(formEntries, ([x,y]) => ({[x]:y})));

var nf = Intl.NumberFormat();
var x = 42000000;
console.log(nf.format(x));
//42,000,000

let tagihan=x;
let tagihan_format=String(tagihan).replace(/(.)(?=(\d{3})+$)/g,'$1,');
console.log(tagihan_format);

<style type="text/css">
 @font-face {
  font-family: "Monaco";
   src: url("landing/font/monaco.eot");
   src: url("landing/font/monaco.eot?#iefix") format("embedded-opentype"),
    url("landing/font/monaco.woff2") format("woff2"),
    url("landing/font/monaco.woff") format("woff"),
    url("landing/font/monaco.ttf") format("truetype"),
    url("landing/font/monaco.svg#Monaco") format("svg");
 }
</style>

//using replace()
someString = 'the cat looks like a cat';
anotherString = someString.replace(/cat/g, 'dog');

//using str.split(search).join(replacement);
str = "Test abc test test abc test...".split("abc").join("");

var mystr = '0000000020C90037:TEMP:data';
var myarr = mystr.split(":");
var myvar = myarr[1] + ":" + myarr[2];
console.log(myvar);

SELECT id, no_wa, other_columns FROM messages WHERE
id IN (SELECT MAX(id) FROM messages GROUP BY no_wa );