bindec():Decimal equivalent of Binary string

echo bindec('1101'); // Output 13 
echo "<br>";
echo bindec('0101'); // Output 5 
echo "<br>";
echo bindec('10110'); // Output is 22
echo "<br>";
echo bindec('101101101'); // Output is 365
echo "<br>";
echo bindec('111011100'); // Output is 476
echo "<br>"; 

number bindec(string $binary);

Example: Binary to Decimal with Leading Zeros

$binary = "000101";
echo bindec($binary);  // Output: 5

Example: Large Binary Numbers

$binary = "110010101011011010";
echo bindec($binary);  // Output: 207610

Example: Binary Input from User

$binary = "1011";
if (ctype_digit($binary)) {
    echo bindec($binary);  // Output: 11
	}

Example: Binary Conversion with Spaces

$binary = "1010 0011";  // Spaces between bits
$binary_clean = str_replace(' ', '', $binary);  // Remove spaces
echo bindec($binary_clean);  // Output: 163

Example: Using bindec() with Binary String in Variable

$binary = "1001011";
$decimal = bindec($binary);
echo "Binary: $binary to Decimal: $decimal";  // Output: Binary: 1001011 to Decimal: 75

Example: Converting Binary Fractions

$binary = "101.101";
list($intPart, $fracPart) = explode('.', $binary);
$decimal = bindec($intPart) + bindec($fracPart) / pow(2, strlen($fracPart));
echo $decimal;  // Output: 5.625

Subhendu Mohapatra

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