PHP - Problem Rounding Decimals

I want to find the first sentence in a string without counting decimals. Here is the code I have, but I still want it to display the decimals, but I don't want it to count as the end of a sentence.

$content = "This is my test string which is 3.5% of what I'm trying to do. This is only a test.";

Code: [Select]
function first_sentence($content)
 {
if(preg_match('/[0-9]+\.[0-9]/', $content, $num)) {
$number = "$num[0]";
$content = ereg_replace("$number","", $content);
}
preg_match('/^.*[^\s](\.|\?|\!)/U', $content, $match);
$string = $match[0];

$title_count = strlen($match[0]);
if($title_count > "6"){
return "$match[0]";
}
else {
$content2 = ereg_replace("$match[0]","", $content);
preg_match('/^.*[^\s](\.|\?|\!)/U', $content2, $step);
return "$match[0] $step[0]";
}}
Currently this is what it displays: This is my test string which is % of what I'm trying to do.
This is what I want it to display: This is my test string which is 3.5% of what I'm trying to do.

Hi - To me, this doesn't make sense.   My Order form uploads product weights in an array . If I echo out those weights they are fine ie 25.25

However, when I try to update the DB for some reason, the for loop strips out all but the first digit, so 25.25 becomes '2' or indeed if I had entered 9999999 it just '9' is entered in to the DB.

I have tried using number_format to pre-process the decimals, - but I get an error saying you can not use it in a write format.

Many Thanks to anyone who can help with this  !!


PS - I have abbreviated the below code for clarity:

Code: [Select]
$weight = $_POST['weight'];

        for ($i = 0; $i < $numloops ; $i++)

      {
       $sql ="
UPDATE `confirmedorder`
SET orderid = '$orderid[$i]', weight='$weight[$i]',status='finished', ordervalue='$ordervalue'
WHERE customerid = $customerid
";
$this->db->query($sql);
}

Just looking to know if this is the proper way to implement this:

I need the below if to be true when any number between 100 and 1000 is the value of x, including say "105.55"

if($x>= 100 && $x <= 1000){
}


Basically I'm asking will a value of x with a decimal in it not cause the if statement to be true.

Hi there.

I am trying to display numbers if they have the numbers like:

number_format($price,2)

This gives us two decimal places i.e 7.23

Now thats fine, I would like to round the last two decimal places. I would like to make it 7.25, (rounding it from 7.23 to 7.25)

Similarly making:

12.44 to 12.45
33.18 to 33.20
52.13 to 52.15

So actually rounding the last two places. Coz obviously customers won't be able to pay 52 dollars 13 cents. So therefore rounding the last cent's (decimal part) making it to 52.15

Thank you.

All comments and feedback are welcomed.


(d

Ok so say I have php do some calculations for me

Code: [Select]

$Value1 = 300;
$Value2 = 100000;
$FirstRatio = $Value1 / $Value2;

$Value3 = 8000;
$Value4 = 6000000;
$SecondRatio = $Value3 / $Value4;


$FirstRatio = 0.003
$SecondRatio = 0.0013

How would I go about doing these calculations and then sorting $FirstRatio and $SecondRatio and then it would take the highest ratio ($FirstRatio) and it would echo the value?

hi there all,

I need some help for rounding currency issue..

example:

0.98 round to 0.95
0.95 when round = 0.95
0.91 roun to 0.95.

mean.
i wanna round the end of number 0.98.
if the end of number is 0.01,0.02,0.03&0.04 it would be automatic round to nearest 0.05
*0.01 round = 0.05
*if the mineral water =$0.71 i should get $0.75

and if the end of number is 0.06,0.07,0.08,0.09 it would automatic round to nearest -0.05
*0.06 round = 0.05
*if the mineral water = $0.79 then i should get $0.75

i had googling this for 2months and no answer.. 
please help me.TQ

How can I round this with 2 decimals:

Code: [Select]
echo " $row[team_treasure] ";
I've tried round($row[team_treasure],2) but doesn't seem to work inside my echo tags :/

I am trying to take a number (three for example) and want to round it to five, or sixty-seven up to seventy.  I looked at round and ceil, but those don't seem like they are the right things.

Thanks,
Joseph

I want to round off an integer vaule to 10-6 grd from

52.71666666  to  52716666

0.926888888  to  926888

does anyone know a simple way to do this?

So I just started working with php (not programming) a couple days ago. In this formula, I need to round something down to the nearest 5 OR 0. Whatever comes first. Any thoughts on how i might do this?

Here's what I have so far.
<?php
$magicLevel = $_POST['magicLevel'];
$playerLevel = $_POST['playerLevel'];
$rune = $_POST['rune']; //gets the value "lmm"
$maxDamage = 0;

switch($rune) {
case "lmm":
$maxDamage = ($playerLevel*0.2)+($magicLevel*0.81)+4;
break;
}


echo $maxDamage;

?>

What I need to round down is this part: ($playerLevel*0.2)

Thanks in advance!

Hi all,

Can anyone please help me with my problem.

I want to know how to round a decimal - eg. 12.34 to the nearest .10 so it would be 12.30 or if 12.35 go to 12.30 or 12.40.

// my example:

round(12.34, 2);

// I want to to go to: 12.30

Any help is greatly appreciated.

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

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.

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?