PHP - Rounding An Integer

Here is the number:



$GrandTotal = "68.835";
$Deposit = round($GrandTotal , 2) * .5;

echo $Deposit;



I am looking for: 68.84 but the function doesn't seem to work right.

Any help?

Hi fellas,

Can anyone show me why my script is still rounding up / down?

printf ("<tr> %s Avg gun Ahit %%</td> %s %.2f %%</td></tr>\n",$tdo,$tdor,number_format($ahit/$fired*100, 3, '.', ''));

Do I have a syntax error as I cannot get my math equation to display more than 2 decimal places even though it's set to 3?

Any help or advice would be really great.

Hey Everybody,

I was replying to someone elses question about number formatting and came up with a class that will format a number of any length with decimal or not, without rounding. It works perfectly, but after a comment by a noteworthy member my curiosity was aroused.

Is there an easier/faster/better way to achieve this??


My Object:

<?php

/*GHETTO NUMBER FORMATTER v1.0*/

class ghettoNumber {

private $input;
private $output;

public $whole;
public $decimal;
public $number;

function __construct($input){
$this->input = $input;
$this->output = $output;
$this->number = $number;
$this->whole = $whole;
$this->decimal = $decimal;
}

private function ghettoFormat(){

//Split number at the .(decimal)
$this->number = explode('.', $this->input);
//Define the whole number
$this->whole = $this->number[0];
//Format the whole number
$this->whole = number_format($this->whole, 0,'', ',');
//Define the decimal
$this->decimal = $this->number[1];
//Format the decimal
$this->decimal = rtrim($this->decimal, '0');

if(is_string($this->input)){
$this->output = $this->decimal != '' ? $this->whole.'.'.$this->decimal : $this->whole;
}
else{
$this->output = '<strong>ERROR:</strong> Input arg must be passed as type: <em>string</em>';
}

//Return result
return 'Original - '.$this->input.'<br>
  GhettoFormat - '.$this->output.'
<br><br>';

}

public function makeItGhetto(){
return $this->ghettoFormat();
}
}

?>


Sample Instantiation:

$ghettoFormat = new ghettoNumber('12565456565.123401201001210000');
                print $ghettoFormat->makeItGhetto();



I will reiterate my question once more...
Is there, in your opinion, a BETTER way to achieve this (number formatting w/o rounding)?

Thanks People,

E

Hi,

Having trouble rounding the output. I would need to be sure the output is not longer than 2 spaces after comma.
Any ideas?

My code
Code: [Select]
<script type="text/javascript">
$(document).ready(function() {
  $("<?php echo "#".$input_end_time; ?>").blur(function(){
   var start_time = $("<?php echo "#".$input_start_time; ?>").val();
   var end_time = $("<?php echo "#".$input_end_time; ?>").val();
  $.getJSON("include/timedifferencecalculation.php?s="+start_time+"&e="+end_time, function(data){
   var success = data.success;
    if (success == 1) {
     $("<?php echo "#".$input_difference; ?>" ).val(data.hours + " h " + data.minutes + " m ");
  if (data.hours + data.minutes/60 >= 6){
$("<?php echo "#".$hours_difference; ?>").val(data.hours + data.minutes/60 - 0.5);
}else { $("<?php echo "#".$hours_difference; ?>").val(data.hours + data.minutes/60); }
  }else { $("#message").text("Viga! " + data.reason); }
    })
    });
  });
</script>

Code: [Select]
This is before
$("<?php echo "#".$hours_difference; ?>").val(data.hours + data.minutes/60 - 0.5);

This is what im trying to get but its not working.
$("<?php echo "#".$hours_difference; ?>").val( round(data.hours + data.minutes/60 - 0.5), 2 );

I need to round a number based on it's decimal. 3 or below should round down, 4 should round up to 5, 6 and 7 should round down to 5; 8 and 9 should round up to the next whole number.

The below is returning 3 from 2.16.
Code: [Select]
<?php
$a=2.16;
$i=round($a, 1);
$b=$i;

$i=explode(".", $a);
$decimal=$i[1];

if($decimal < 5){
$j=floor($b);
$i= $decimal > 3 ? $j + .5 : $j;
echo $i;
}
else{
$j=ceil($b);
$i= $decimal < 8 ? $j - .5 : $j;
echo $i;
}
?>

EDIT: The explode should have been on $i not $a.

I am very new to PHP and programming in general. About 3 weeks into this.
I have this simple expression and some echo in my code.

    $x1 = $lat_b + $lat_a1;
    echo "<br>lat b: ".$lat_b;
    echo "<br>lat a1: ".$lat_a1;   
    echo "<br>x1: ".$x1;

$lat_b and $lat_a1 are derived from some xml extractions from a yahoo geocode api (that part works fine).

The results of the expression and echos above are as follows:

    lat b: 40.402866
    lat a1: 40.252590
    x1: 80

Why is $x1 rounding automatically on me?

Later, I substituted the expression above with  $x1 = 40.402866 + 40.252590 ; The new result (shown below) makes sense to me.

   lat b: 40.402866
   lat a1: 40.252590
   x1: 80.655456

Bascially i add a couple numbers up and display the sum.

sometimes the number is something like this: 234.237

i want it to display : 234.24

i realize its needs "round()" in it but i dont know how to use it..

any help?

$f15 = 0.345677 (output from sql data pull)

<?php echo number_format ($f15,3); ?>
 output = 0.345

<?php echo ltrim($f15,"0"); number_format ($f15,3); ?>
output = .345677

How do I combine these so that I am BOTH rounding the result AND trimming a leading zero?  Seems I can get one or the other, but not both.

Suggestions on the syntax?

Hello. This is my first post here. I am not an expert developer but I generally manage to do what is asked of me. However, now and then I'm stumped, like now...

I have an online database system for our company in which staff can enter JOB related data, this includes 2 dimensions which they enter in millimetres (mm).

Here's an example

$dimension1 might be entered as 850
$dimension2 might be entered as 1447
$square_metres is the value I need to calculate.

Firstly, I need to round both dimensions up to the next 100mm so the 850 in this example would become 900 and the 1447 would become 1500.

Once I've done that, I need to calculate the square metres (900mm x 1500mm / 1000 was my first thought) but that raised the second thing; adding a decimal point in the result. 900 x 1500 / 1000 = 1350 but I need the result to be 1.350

I know my way around basic PHP code but I'm no expert by any stretch.

If anyone can help me understand how to get this calculation done I would be hugely appreciative.

Thank you

Martin

So I am trying to take a string value of dollars (posted from a form) and times it by 100 to get the cents Integer value of the dollars.  For some reason if I do this with something like 278.53  I end up with 27852.  Same concept for 278.59 ends up as 27858.  I don't understand why or how to make it work.  I've tried many things and nothing has made it work.

$price = '278.53'; // posted from the form
$cents = $price * 100; // converting to cents.
end_result = (int)$cents // This will end up being 27852 not 27853.

 

Hey,


I have this brainstorm whether I should store id's as integers or text? I mean in my database, since my IDs start from like 1319129364 which is a rather large number, I was thinking if it would be better to save it as text? Which case requires less memory ?

Hi i'm trying to get out a sub string from multiple pages where i'm using a start point string that looks like this "(integer)" where "integer is different every time. Is there any way I can tell it that its just an integer there so if its "(3)" on one page and "(10)" on another page it will start from the same spot?

Ive got a simple function that's counting percentages of the results, and what I want is when the first line does $variable / 100 - to go on 2 decimals(ex. 0.72142141 what I want is to write 0.72).

Code: [Select]
function postotak(){
$p = $bodovi / 100;
$postotak = $p * 100;

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Hi Guys!

I have a method that get's all devices that share a specific ID. Foreach of those device UID's, I am trying to send a APN (Apple Push Notification) using the easyAPN's class.

The method that is having the problem is $apns->newMessage($id);

It seems to think I am not passing a valid integer for $id.

The $id is an array like so Array ( => 1 )

I have also tried passing just the value of the array like so $apns->newMessage($id[0]).

No matter what I do.. I keep getting this error...

"Notice: TO id was not an integer. 1) Messages_model::send_apns -> File: sendMessage.php (line 28) 2) APNS::queueMessage -> File: messages_model.php (line 195) 3) APNS::_triggerError -> File: class_APNS.php (line 599)"

Here is my method... please let me know where I've gone wrong with the $id.

function send_apns($data)
{
include 'apn_classes/class_DbConnect.php';
include 'apn_classes/class_APNS.php';

$message = new Messages_model();
$db = new DbConnect();
$db->show_errors();
$apns = new APNS($db);

//get uid's for aid
$sql = "SELECT `devices`.`uid` FROM `devices` WHERE `devices`.`aid` = '".$data['target']."'";
//echo $sql;
$query = mysql_query($sql);
if(mysql_num_rows($query))
{
while($uid_data = mysql_fetch_array($query))
$uids[] = array(
"uid" => $uid_data['uid']
);
}

//make sure there is a uid
if(!empty($uids))
{
//check the device apn pid
foreach($uids as $uid)
{
$sql = "SELECT `apns_devices`.`pid` FROM `apns_devices` WHERE `apns_devices`.`deviceuid` = '".$uid['uid']."'";
//echo "$sql";
$query = mysql_query($sql);
if(mysql_num_rows($query) > 0)
{
while($pid_data = mysql_fetch_array($query))
{
$pids[] = array(
"pid" => $pid_data['pid'],
);

if(!empty($pids))
{
foreach ($pids as $pid)
{
$id = array($pid['pid']);
print_r($id);
//Send APN
$apns->newMessage($id[0]);
$apns->addMessageBadge(128);
$apns->addMessageAlert($data['message']);
$apns->addMessageSound('chime');
//$apns->addMessageCustom('acme2');
$apns->queueMessage();
$apns->processQueue();
}
}
}
}
}

}
else 
{
echo "Device Does not Exist";
}



}