DECBIN(3) 1 DECBIN(3)
decbin - Decimal to binary
SYNOPSIS
string decbin (int $number)
DESCRIPTION
Returns a string containing a binary representation of the given $number argument.
PARAMETERS
o $number
- Decimal value to convert
Range of inputs on 32-bit machines
+-------------------------------------+--------------------------------------+---+
| positive $number | | |
| | | |
| | negative $number | |
| | | |
| | return value | |
| | | |
+-------------------------------------+--------------------------------------+---+
| 0 | | |
| | | |
| | | |
| | |T{ 0 | |
| | | |
| 1 | | |
| | | |
| | | |
| | |T{ 1 | |
| | | |
| 2 | | |
| | | |
| | | |
| | |T{ 10 | |
| | | |
| | | |
| 2147483646 | | |
| | | |
| | | |
| | |T{ 1111111111111111111111111111110 | |
| | | |
|2147483647 (largest signed integer) | | |
| | | |
| | | |
| | |T{ 1111111111111111111111111111111 | |
| | (31 1's) | |
| | | |
| 2147483648 | | |
| | | |
| | -2147483648 | |
| | | |
| | 10000000000000000000000000000000 | |
| | | |
| | | |
| 4294967294 | | |
| | | |
| | -2 | |
| | | |
| | 11111111111111111111111111111110 | |
| | | |
|4294967295 (largest unsigned inte- | | |
|ger) | | |
| | | |
| | -1 | |
| | | |
| | 11111111111111111111111111111111 (32 | |
| | 1's) | |
| | | |
+-------------------------------------+--------------------------------------+---+
Range of inputs on 64-bit machines
+-------------------------------------+------------------------------------------------------------------+---+
| positive $number | | |
| | | |
| | negative $number | |
| | | |
| | return value | |
| | | |
+-------------------------------------+------------------------------------------------------------------+---+
| 0 | | |
| | | |
| | | |
| | |T{ 0 | |
| | | |
| 1 | | |
| | | |
| | | |
| | |T{ 1 | |
| | | |
| 2 | | |
| | | |
| | | |
| | |T{ 10 | |
| | | |
| | | |
| 9223372036854775806 | | |
| | | |
| | | |
| | |T{ | |
| | 111111111111111111111111111111111111111111111111111111111111110 | |
| | | |
|9223372036854775807 (largest signed | | |
|integer) | | |
| | | |
| | | |
| | |T{ | |
| | 111111111111111111111111111111111111111111111111111111111111111 | |
| | (63 1's) | |
| | | |
| | | |
| |T{ -9223372036854775808 | | |
| | | |
| | 1000000000000000000000000000000000000000000000000000000000000000 | |
| | | |
| | | |
| | | |
| |T{ -2 | | |
| | | |
| | 1111111111111111111111111111111111111111111111111111111111111110 | |
| | | |
| | | |
| |T{ -1 | | |
| | | |
| | 1111111111111111111111111111111111111111111111111111111111111111 | |
| | (64 1's) | |
| | | |
+-------------------------------------+------------------------------------------------------------------+---+
RETURN VALUES
Binary string representation of $number
EXAMPLES
Example #1
decbin(3) example
<?php
echo decbin(12) . "
";
echo decbin(26);
?>
The above example will output:
1100
11010
SEE ALSO
bindec(3), decoct(3), dechex(3), base_convert(3), printf(3), using %b, %032b or %064b as the format , sprintf(3), using %b, %032b or %064b
as the format .
PHP Documentation Group DECBIN(3)
