Math

Base10Converter

Type:	code fragment
Added by:	rdickerson
Entered:	08/09/2005
Last modified:	02/12/2005
Rating:	- (fewer than 3 votes)
Views:	2849

Convert base 10 int to any other base up to 16. This function will take a take two integer values. The first is the base you want to convert to, the second is the base 10 number you are converting.

<?php 

                            
 function convert ($iBase, $iNumber)

                            {

                                $aHexValues = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');

                                $sReturn = '';

                                

                                $iIndex = 0;

                                while ($iNumber >= $iBase)

                                {

                                    $iIndex = $iNumber % $iBase;

                                    $iNumber = floor($iNumber / $iBase);

                                    $sReturn = $aHexValues[$iIndex] . $sReturn;

                                }

                                $sReturn = $aHexValues[$iNumber] . $sReturn;

                                return $sReturn;

                            }

                            
 ?>

Usage Example

$iNewBase = 8;

                            $iBaseTenNum = 21;

                            $sNewBaseNum = convert($iNewBase, $iBaseTenNum);

                            

                            

                            printf("Decimal Number: %dn", $iBaseTenNum );

                            printf("Base Conversion: %dn", $iNewBase );

                            printf("Converted number is: %sn", $sNewBaseNum );

                            

                            

                            /* Output ***

                            

                            Decimal Number: 21 

                            Base Conversion: 8 

                            Converted number is: 25

                            

                            ***/

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