php untuk terima post

<?php
define('_start_time', microtime(true));
logWrite("Start");
$param=[
    'post'=>$_POST??[],
    'created'=>microtime(true)
];

logWrite("response");
responseText($param); exit; //setelah memakai ini harus exit ato die

//+++++++++++++++HARUS DIPERHATIKAN++++++++++++++
//pengganti echo/print yang cetak ke halaman... semua harus taro log dan baca di log
function logWrite($txt){
    $t = microtime(true) - _start_time;
    $now = date("Y/m/d H:i.s");
    if(!defined('_IDLOG')) define('_IDLOG', ceil( microtime(true) * 100) );
    $str = sprintf("%s %5.2f| %s[%s]", $now, $t, $txt, _IDLOG);
    $file = date("YmdH").".log";
    $folder = __DIR__."/logs";
    if(!is_dir($folder)){
        mkdir($folder);
        logWrite($txt);
    }
    error_log( trim($str??'')."\n", 3, $folder."/".$file );
}

function responseText($data=NULL, $error_code=0, $message="success"){
    $res=[
        'error'=>$error_code, //bila 1 berarti error
        'message'=>$message,

    ];
    if(isset($data) && !is_null($data) ){
        $res['data']= $data;
    }

    echo json_encode($res);
    return;
}