Need coding help.

hi

pls help me out, if any know how to script for bank deposit (compound interest calculations.)


thanks

 

Two versions - one is fully commented, the other's a function - more easy to use:

<?php

/**
 *	The below is the deposit after
 *	Don't include a currency value, 
 *	ideally, though I've included a 
 *	function to make it work either 
 *	way with or without.
**/
$depositAfterPrecise = $depositBefore = floatval(94335.56);

/**
 *	The below is the percentage interest rate
 *	3.2 means an interest rate of 3.2% per year
**/
$interestRate = 3.2;

/**
 *	The below is the number of years of interest
 *	7 means 7 years, obviously 1 month is 1 divided 
 *	by 12 which is actually a recurring value.
**/
$interestYears = 7;

/**
 *	This is the actual logic below
 *	There's no more configuration values
**/
$interestRateOverall = ($interestRate / 100) * $interestYears;
$depositAfterPrecise += $depositBefore * $interestRateOverall;
$depositAfter = round($depositAfterPrecise, 2);

/**
 *	The below two lines just output the values 
 *	so you can check that it's working.
**/
echo $depositAfterPrecise . '<br />';
echo $depositAfter . '<br />';

/**
 *	$depositAfterPrecise in this case is 115466.72544
 *		This isn't rounded - you aren't usually interested 
 *		in such a precise value in this case.
 *	$depositAfter in this case is 115466.73
 *		This is a proper rounded currency value, with 2 
 *		decimal points only, as you'd usually use.
**/

?>

PHP:

This next one's a function:

<?php

function compoundInterest($depositBefore, $interestRate, $interestYears) {
	/**
	 *	This is the actual logic below
	**/
	$depositAfterPrecise = $depositBefore;
	$interestRateOverall = ($interestRate / 100) * $interestYears;
	$depositAfterPrecise += $depositBefore * $interestRateOverall;
	$depositAfter = round($depositAfterPrecise, 2);
	
	return $depositAfter;
}

/**
 *	The below is the deposit after
 *	Don't include a currency value, 
 *	ideally, though I've included a 
 *	function to make it work either 
 *	way with or without.
**/
$depositBefore = floatval(94335.56);

/**
 *	The below is the percentage interest rate
 *	3.2 means an interest rate of 3.2% per year
**/
$interestRate = 3.2;

/**
 *	The below is the number of years of interest
 *	7 means 7 years, obviously 1 month is 1 divided 
 *	by 12 which is actually a recurring value.
**/
$interestYears = 7;


/**
 *	This line below runs the actual logic
**/
$depositAfter = compoundInterest($depositBefore, $interestRate, $interestYears);


/**
 *	The below line just outputs the value 
 *	so you can check that it's working.
**/
echo $depositAfter . '<br />';

/**
 *	$depositAfterPrecise isn't returned in this case.
 *	$depositAfter in this case is 115466.73
 *		This is a proper rounded currency value, with 2 
 *		decimal points only, as you'd usually use.
**/

?>

PHP:

 

Hi buddy

Thanks for the help. I follow your script with some changes and its work. check this out and please reply back.

Thanks