match criteria

	<?php
	function status_total($customer, $system){
		$sql_customer 		= "SELECT * FROM `Customer` WHERE Cust_Name = '$customer' LIMIT 0,1";
		$customer_selection = mysqli_query($conn,$sql_customer);
		$customer_row		= mysqli_fetch_assoc($customer_selection);
		$env_lines 			= $customer_row["Env_Lines"];
		$cust_id			= $customer_row["Cust_ID"];
		$sql_last_records	= "SELECT * FROM $system WHERE Cust_ID = $cust_id ORDER BY Time DESC LIMIT $env_lines";
		$record_selection	= mysqli_query($conn, $sql_last_records);			    
		
		$result = mysqli_fetch_all($record_selection, MYSQLI_ASSOC);
		$states = array_column($result, "Stat");
		
		if($states == array_fill(0, count($states), "Run")) {
		    echo "Success";
		} else 
		    echo "Fail";
		
	}
	
	?>

this code works if i use it as a whole in a page but if I make it a function it doesnt work. It doesnt get the variables that are given, even if I type it in plain text. Where did I make a mistake?