Usare number_format senza arrotondamenti

[badaze]

Quesito interessante. Mi sono fatto una funzioncina.

<?php
        
function my_number_format ($number , $decimals = 0 , $dec_point = "." ,$thousands_sep = "," ) {
  // Separazione parte intera e parte decimale
        sscanf($number,"%d.%d",$int,$deci);
        $rev = strrev($int);
  
        // Parte decimale
        $dec = trim(substr($deci,0,$decimals));
        $dec = $dec.str_repeat('0',$decimals-strlen($dec));
        
        // Parte intera
        $i   = strlen($int);
        $res = "";
        for ($j=0;$j<$i;$j=$j+3) {
                $res = $res." ".substr($rev,$j, 3);
        }
  
  // Risultato finale
        $res = strrev($res);
        $res = str_replace(" ",$thousands_sep,trim($res));
        if ($dec!="") {$res = $res.$dec_point.$dec;}
  
        return $res;
} // function my_number_format ($number , $decimals = 0 , $dec_point = "." ,$thousands_sep = "," ) 
$number = 1888234.5678;
$res    =  my_number_format($number,2);
print "$number => $res <br>";
$number = 1888234;
$res    =  my_number_format($number,2);
print "$number => $res <br>";
$number = 1888234.5;
$res    =  my_number_format($number,2);
print "$number => $res <br>";
$number = 1888234.5678;
$res    =  my_number_format($number,2,"."," ");
print "$number => $res <br>";
$number = 1.5;
$res    =  my_number_format($number,2);
print "$number => $res <br>";
$number = 12.5;
$res    =  my_number_format($number,2);
print "$number => $res <br>";
$number = 123.5;
$res    =  my_number_format($number,2);
print "$number => $res <br>";
$number = 1234.5;
$res    =  my_number_format($number,2);
print "$number => $res <br>";
$number = 1234.5;
$res    =  my_number_format($number,2,","," ");
print "$number => $res <br>";
$number = 1888234.5678;
$res    =  my_number_format($number,3);
print "$number => $res <br>";
$number = 1888234.5678;
$res    =  my_number_format($number,0,"."," ");
print "$number => $res <br>";