Math function base_convert() to return number after changing one base to other in PHP

Convert a number between bases

base_convert() converts a number represented as a string from one base to another. PHP supports bases from 2 through 36; the returned value is also a string.

$hex = 'ff';
echo base_convert($hex, 16, 10); // 255
echo base_convert('255', 10, 2); // 11111111

echo base_convert(4,10,2); // Output 100 
echo "<br>";
echo base_convert(10,10,2); // Output 1010

Syntax

string base_convert(string $number, int $from_base, int $to_base);

Parameter	DESCRIPTION
$number	Required : Input string representing number to convert. With a base higher than 10 is represented by Char. Here a is 10, b is 11 ... so z is 35. ( case in-sensitive )
$from_base	Required : ( between 2 and 36 , inclusive )
$to_base	Required : ( between 2 and 36 , inclusive )

The return value is a string containing the number represented in $to_base.

Decimal to binary

echo base_convert(6,10,2); // Output 110 
echo "<br>";
echo base_convert(42,10,2); // Output 101010

Decimal to octal

echo base_convert(10,10,8); // Output is 12
echo "<br>";
echo base_convert('15',10,8); // Output is 17

Decimal to hexadecimal

echo base_convert(12,10,16); // Output is c
echo "<br>";
echo base_convert('25',10,16); // Output is 19

Octal to binary

echo base_convert(13,8,2); // Output is 1011
echo "<br>";
echo base_convert('25',8,2); // Output is 10101

Octal to decimal

echo base_convert(14,8,10); // Output is 12
echo "<br>";
echo base_convert(27,8,10); // Output is 23

Octal to hexadecimal

echo base_convert(15,8,16); // Output is d
echo "<br>";
echo base_convert(30,8,16); // Output is 18

Hexadecimal to binary

echo base_convert(15,16,2); // Output is 10101
echo "<br>";
echo base_convert(31,16,2); // Output is 110001

Hexadecimal to octal

echo base_convert(14,16,8); // Output is 24
echo "<br>";
echo base_convert(32,16,8); // Output is 62

Hexadecimal to decimal

echo base_convert(13,16,10); // Output is 19
echo "<br>";
echo base_convert(33,16,10); // Output is 51

Math Functions bindec(): Decimal equivalent of Binary string decbin() Binary equivalent of decimal number

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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