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PHP base_convert() Function

❮ PHP Math Reference

Example

Convert a hexadecimal number to octal number:

<?php
$hex = "E196";
echo base_convert($hex,16,8);
?>
Try it Yourself »

Definition and Usage

The base_convert() function converts a number from one number base to another.


Syntax

base_convert(number,frombase,tobase);
Parameter Description
number Required. Specifies the number to convert
frombase Required. Specifies the original base of number. Has to be between 2 and 36, inclusive. Digits in numbers with a base higher than 10 will be represented with the letters a-z, with a meaning 10, b meaning 11 and z meaning 35
tobase Required. Specifies the base to convert to. Has to be between 2 and 36, inclusive. Digits in numbers with a base higher than 10 will be represented with the letters a-z, with a meaning 10, b meaning 11 and z meaning 35


Technical Details

Return Value: The number converted to the specified base
Return Type: String
PHP Version: 4+

More Examples

Example

Convert an octal number to a decimal number:

<?php
$oct = "0031";
echo base_convert($oct,8,10);
?>
Try it Yourself »

Example

Convert an octal number to a hexadecimal number:

<?php
$oct = "364";
echo base_convert($oct,8,16);
?>
Try it Yourself »

❮ PHP Math Reference