[SOLVED] splitting numbers

[jkkenzie]

Hi!

I would like to split a number into groups of three starting from the right Just like in currency BUT i want i want to zero to the right ti indicate their position in the number i.e tens, hundreds ... and save each group in variable e.g

I have  525 as my number.

 

I want to split it to 500 , 20 and 5 separately in variables so as to use it. (table below):

 

Milllions thousands Hundreds Tens Ones

xxxxxxxxxx xxxxxxx 500 20 5

 

[Daniel0]

Just divide by multiples of 10.

[jkkenzie]

It will give me decimal places.

An example would do good.

Thanks

[Daniel0]

$hundreds = (int) $number / 100;

 

That'll give you how many hundreds there are.

[jkkenzie]

It wont work with my scenario,

 

Like 525 is giving me 5 for hundreds and 52 for tens and 525 for ones AND yet I wanted. 500 for hundreds and 20 for tens and 5 for ones.

 

 

[Daniel0]

Same concept.

 

<?php
$number = 525;

$parts = array();
$div = pow(10, strlen($number) - 1);
$n = $number;

while ($div >= 1) {
$parts[$div] = (int) ($n / $div) * $div;
$n = $n % $div;
$div /= 10;
}

print_r($parts);

 

I just want to point out that it is mathematically incorrect to say that there are 500 hundreds in the number 525 though.

525 = 5*10² + 2*10¹ + 5*10⁰

[jkkenzie]

You are right it is mathematically incorrect to say that there are 500 hundreds in the number 525.

 

I was not suggesting that but it was the only way to quickly let you know what i wanted directly.

 

In our banks here, we have a deposit slip that has a table for 10, 100, 1000, 10000 .....

ans so on, you have to indicate the value of the NOTE for each category, If you have 525 i.e a note for 500 and 20 shillings coin and 5 shillings coin. you indicate under 100 as 500 and so on. I dont think i am clear BUt something like that, it just an input form to take care of data integrity.

 

[PFMaBiSmAd]

<?php
$value = 1234567890;

$array = str_split($value); // break into characters
$array = array_reverse($array); // reverse the order (1's, 10's, 100's...)

$base = 1; // current base 1,10,100...
$result = array(); // some place to store the results
foreach($array as $value){
$result[$base] = $value * $base;
$base *= 10; // mult by 10
}
echo "<pre>",print_r($result,true),"</pre>";
?>

[jkkenzie]

That is great stuff, thanks alot guys they all work perfect.

[Psycho]

I took a different approach and processed the value as a string (first converting the value to an int and then itno a string to remove decimal content):

 

<?php

function convertNumToParts($number)
{
    $numberStr = (string) (int) $number;
    $result = array();

    for($i=0; $i<strlen($numberStr); $i++)
    {
        $result[pow(10, strlen($numberStr)-$i-1)] = substr($numberStr, $i, 1);
    }
    return $result;
}


$number = 525;
$parts = convertNumToParts($number);
print_r($parts);

//Output:
//Array
//(
//    [100] => 5
//    [10] => 2
//    [1] => 5
//)

?>