PHP Decode

<?php 
	 
	session_start(); 
	ob_start(); 
	 
	if (!isset($_SESSION["login"])) { 
		header("Location: ../index.php"); 
	} 
	 
	require_once("../info.php"); 
	 
	$cid = isset( $_POST["cid"] ) ? $_POST["cid"] : ''; 
	$amount = isset( $_POST["amount"] ) ? $_POST["amount"] : ''; 
	$return = array(); 
	$currentPBalance; 
	 
	$fetchCurrentPBalance = mysqli_query($conn, "SELECT * FROM tempodetable WHERE CustomerID = '".$_SESSION["CustomerID"]."'"); 
	if( mysqli_num_rows($fetchCurrentPBalance) ) { 
		while( $row = mysqli_fetch_array($fetchCurrentPBalance) ) { 
			$currentPBalance = $row["PBalance"]; 
		} 
	} 
	 
	// Global variables 
	$sendMail = false; 
	$tempPercentage; 
	$tempCheckValue; 
	$moneyReceiverFullName; // Name and surname who will get money from session user 
	$moneyReceiverEmail; // Email who will get money from session user 
	 
	if( isset( $_POST["cid"] ) && isset( $_POST["amount"] ) ) { 
		 
		$cid = strtolower($_POST["cid"]); 
		 
		$checkCid = "SELECT * FROM tempodetable WHERE CustomerID = '".$cid."'"; 
		$checkCidResult = mysqli_query($conn, $checkCid) or die(mysqli_error($conn)); 
		 
		$tempPercentage = ( $amount / 100 ) * 1; 
		$tempCheckValue = $tempPercentage + $amount; 
		 
		if( mysqli_num_rows($checkCidResult) ) { 
			 
			while( $r = mysqli_fetch_array($checkCidResult) ) { 
				$moneyReceiverFullName = $r["FirstName"]." ".$r["LastName"]; 
				$moneyReceiverEmail = $r["Email"]; 
			} 
			 
			if( $currentPBalance > $tempCheckValue ) { 
				 
				if( $amount <= 0 || $amount > $currentPBalance ) 
					$return["error"] = "Error: You cannot send $amount."; 
				else if( $amount <= 30 ) 
					$return["error"] = "Error: Sending amount should be greather then 30."; 
				else if( $cid == $_SESSION["CustomerID"] ) { 
					$return["error"] = "Error: You cannot send money to yourself."; 
				} 
				else { 
					$return["success"] = "Money sent successfully."; 
					$result = mysqli_query($conn, "UPDATE tempodetable SET PBalance = PBalance - '$tempCheckValue' WHERE CustomerID = '".$_SESSION["CustomerID"]."'") or die(mysqli_error($conn)); 
					mysqli_query($conn, "UPDATE tempodetable SET PBalance = PBalance + '$amount' WHERE CustomerID = '".$cid."'") or die(mysqli_error($conn)); 
					 
					if( $result ) { 
						$q = mysqli_query($conn, "SELECT PBalance FROM tempodetable WHERE CustomerID = '".$_SESSION["CustomerID"]."' ") or die(mysqli_error($conn)); 
						if( mysqli_num_rows($q) ) { 
							while( $tempRow = mysqli_fetch_array($q) ) { 
								$tempBalance = $tempRow["PBalance"]; 
								$currentPBalance = $tempBalance; 
							} 
						} 
					} 
					sendAllMails(); 
				} 
			} 
			else 
				$return["error"] = "Error: You dont have enough balance for send $amount euros."; 
		} 
		else 
			$return["error"] = "Error: User not found. Please check the field."; 
		echo json_encode($return); 
	} 
	 
	function sendAllMails() { 
		 
		global $tempPercentage; 
		global $tempCheckValue; 
		global $moneyReceiverFullName; 
		global $moneyReceiverEmail; 
		 
		// Mail to Session CustomerID (Current User); 
		$to_1 = $_SESSION["Email"]; 
		$from_1 = "[email protected]"; 
		$subject_1 = "ODE Notification."; 
		$message_1 = "Hello ".$_SESSION["FirstName"]." ".$_SESSION["LastName"].",<br><br>"; 
		$message_1 .= "You sent money to ".$_POST["cid"].".<br>"; 
		$message_1 .= "Amount: ".$_POST["amount"]."<br>"; 
		$message_1 .= "1% transaction fee: ".$tempPercentage."<br>"; 
		$message_1 .= "Total: ".$tempCheckValue."<br><br>"; 
		$message_1 .= "Thanks for choosing us. Have a good day."; 
		 
		$headers_1 = "From: ".$from_1."
"; 
		$headers_1 .= "MIME-Version: 1.0"."
"; 
		$headers_1 .= "Content-type:text/html;charset=utf-8"."
"; 
		 
		// mail($to_1, $subject_1, $message_1, $headers_1); 
		 
		// Mail to user who will receive money from Session CustomerID (Current User); 
		$to_2 = $moneyReceiverEmail; 
		$from_2 = "[email protected]"; 
		$subject_2 = "ODE Notification."; 
		$message_2 = "Hello ".$moneyReceiverFullName.",<br><br>"; 
		$message_2 .= "You have received money from ".$_SESSION["CustomerID"].".<br>"; 
		$message_2 .= "Amount: ".$_POST["amount"]."<br>"; 
		$message_2 .= "Thanks for choosing us. Have a good day."; 
		 
		$headers_2 = "From:".$from_2."
"; 
		$headers_2 .= "MIME-Version: 1.0"."
"; 
		$headers_2 .= "Content-type:text/html;charset=utf-8"."
"; 
		 
		// mail($to_2, $subject_2, $message_2, $headers_2); 
		 
		// Mail to support@ode; 
		$to_3 = "[email protected]"; 
		$from_3 = "[email protected]"; 
		$subject_3 = "ODE Notification."; 
		$message_3 = "Hello</br>"; 
		$message_3 .= "User ".$_SESSION["CustomerID"]." sent money to ".$_POST["cid"].".<br>"; 
		$message_3 .= "Amount: ".$_POST["amount"]."<br>"; 
		$message_3 .= "1% transaction fee: ".$tempPercentage."<br>"; 
		 
		$headers_3 = "From: ".$from_3."
"; 
		$headers_3 .= "MIME-Version: 1.0"."
"; 
		$headers_3 .= "Content-type:text/html;charset=utf-8"."
"; 
		 
		// mail($to_3, $subject_3, $message_3, $headers_3); 
	} 
	 
	ob_end_flush(); 
?>