atanh
bindec
Math Functions
PHP Manual

# base_convert

(PHP 4, PHP 5)

base_convert — Convert a number between arbitrary bases

### Description

string base_convert ( string `$number` , int `$frombase` , int `$tobase` )

Returns a string containing `number` represented in base `tobase`. The base in which `number` is given is specified in `frombase`. Both `frombase` and `tobase` have 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.

Warning

base_convert() may lose precision on large numbers due to properties related to the internal "double" or "float" type used. Please see the Floating point numbers section in the manual for more specific information and limitations.

### Parameters

`number`

  The number to convert

`frombase`

  The base `number` is in

`tobase`

  The base to convert `number` to

### Return Values

`number` converted to base `tobase`

### Examples

Example #1 base_convert() example

`<?php
$hexadecimal = 'A37334';
echo base_convert($hexadecimal, 16, 2);
?>`

The above example will output:

    101000110111001100110100

### See Also

- intval() - Get the integer value of a variable

atanh
bindec
Math Functions
PHP Manual