从另一个函数调用时，保存到数据库函数不起作用

Question

一切正常，除了当我从load_info函数调用save_info函数以保存到数据库时  我尝试将save_info函数中的整个代码块都包含在if语句中，但仍然无法正常工作

// This function will save information to an existing account
//==MAN8==
function save_info($dbh, $table, $pname, $pip, $pnp, $pop, $psp)
{
try
	{
		$stmt = $dbh->prepare("UPDATE $table SET p_ip=?, p_np=?,p_op=?,p_sp=? WHERE p_name=?");
		$stmt->execute(array($pip,$pnp,$pop,$psp,$pname));
		echo "1";
	}
	catch (PDOExecption $ex)
		{	
			echo "0";
		}
	$dbh = null;
}

// This function will pull account information
//==MAN9==
function load_info($dbh,$table,$pname)
{
	{
		$stmt = $dbh->query("SELECT * FROM $table WHERE p_name = '$pname'");
		$result = $stmt->fetchObject();
		
		if ($result->p_ip > $result->p_np)
		{
		echo 'yes';
		}
	    if ($result->p_ip = $result->p_np)
		{
		save_info($dbh, $table, $pname, $pip, $pnp, $pop, $psp);	
		}	
	}