base_convert
base_convert
(PHP 4, PHP 5, PHP 7)
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. The case of the letters doesn't matter, i.e. number is interpreted case-insensitively.
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. Any invalid characters in
numberare silently ignored. -
frombase -
The base
numberis in -
tobase -
The base to convert
numberto
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
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.base-convert.php
