PHP Array Exercises : Floor decimal numbers with precision

PHP Array: Exercise-18 with Solution

Write a PHP function to floor decimal numbers with precision.

Note: Accept three parameters number, precision, and $separator
Sample Data :
1.155, 2, "."
100.25781, 4, "."
-2.9636, 3, "."

Sample Solution:

PHP Code:

<?php
function floorDec($number, $precision, $separator)
{
$number_part=explode($separator, $number);
$number_part[1]=substr_replace($number_part[1],$separator,$precision,0);
if($number_part[0]>=0)
{$number_part[1]=floor($number_part[1]);}
else
{$number_part[1]=ceil($number_part[1]);}

$ceil_number= array($number_part[0],$number_part[1]);
return implode($separator,$ceil_number);
}
print_r(floorDec(1.155, 2, ".")."\n");
print_r(floorDec(100.25781, 4, ".")."\n");
print_r(floorDec(-2.9636, 3, ".")."\n");
?>
 

Sample Output:

1.15                                                        
100.2578                                                    
-2.964    

Flowchart:

PHP Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a PHP function that returns the lowest integer that is not 0.
Next: Write a PHP script to print "second" and Red from the specified array.