round numbers

[dflow]

i have a price i want to add 10%-15% to the base price and that the result

 

will be rounded to 9 in the ones digit place.

 

for example

 

85 +15%=97.7

$result=99

 

117+15%=134.55

$result = 139

 

played with round() and ceil()

 

[jcbones]

Do you ever round down, or leave the price as is?

 

As in:

 

100 + 10% = 110 or 119

 

 

 

[cyberRobot]

It's very crude, but would something like this work:

 

<?php
//INITIALIZE VARIABLES
$price = 85;
$percent = 15;
$percentIncrease = $price * ($percent/100);

//GET NEW PRICE
$newPrice = $price + $percentIncrease;

//REMOVE DECIMAL
$newPrice = (int)$newPrice;  //you may want to use     $newPrice = round($newPrice);

//REPLACE LAST NUMBER WITH A NINE (and display results before and after)
echo "<div>New price <b>before</b> rounding: $newPrice</div>";
$newPrice = substr($newPrice, 0, -1) . 9;
echo "<div>New price <b>after</b> rounding: $newPrice</div>";
?>

 

 

Of course this won't work if the final price needs to be round down. It also doens't work if the $newPrice is 109.99 for example, but this could be fixed by using the round() or ceil() function.

[facarroll]

try ceil() and floor().

http://php.net/manual/en/function.round.php

[dflow]

Do you ever round down, or leave the price as is?

 

As in:

 

100 + 10% = 110 or 119

 

 

this could be an option actually , but then ill need to isolate the ones digit, how would i do that?

 

[Mahngiel]

I never understood the value of pricing something as 99 or .99.  But maybe it's just because I hate pennies. 

[dflow]

I never understood the value of pricing something as 99 or .99.  But maybe it's just because I hate pennies. 

 

it's psychological cognitive perception of price,

it actually works

[Mahngiel]

it's psychological cognitive perception of price,

it actually works

 

Agreed that it works.  My point is that personally, even as a ladd, I always shook my head at the practice.  It wasn't until I studied law that I realized that not all of mankind is intelligent. 

 

Anyways, how's the progress?

[cyberRobot]

this could be an option actually , but then ill need to isolate the ones digit, how would i do that?

 

 

You could utilize the code I posted earlier:

 

substr($newPrice, 0, -1)

 

 

Of course, you'll need to remove the decimal part first:

 

$newPrice = (int)$newPrice;

 

$newPrice = round($newPrice);

[dflow]

It's very crude, but would something like this work:

 

<?php
//INITIALIZE VARIABLES
$price = 85;
$percent = 15;
$percentIncrease = $price * ($percent/100);

//GET NEW PRICE
$newPrice = $price + $percentIncrease;

//REMOVE DECIMAL
$newPrice = (int)$newPrice;  //you may want to use     $newPrice = round($newPrice);

//REPLACE LAST NUMBER WITH A NINE (and display results before and after)
echo "<div>New price <b>before</b> rounding: $newPrice</div>";
$newPrice = substr($newPrice, 0, -1) . 9;
echo "<div>New price <b>after</b> rounding: $newPrice</div>";
?>

 

 

Of course this won't work if the final price needs to be round down. It also doens't work if the $newPrice is 109.99 for example, but this could be fixed by using the round() or ceil() function.

 

gr8 thanks

[nicholasolsen]

This would do the trick in most cases i think:

 

In this example the price is set to 7.51

 

$price = 7.51;
$new_price = explode(".",$price);

if ($new_price[1] > 50) {
$cent=99;
}
else if ($new_price[1] < 50) {
$cent=50;
}

$ending_price = "$new_price[0].$cent";

 

 

In this example the ending price would be 7.99