What are some functions in PHP that allow for precise accuracy in calculations with very long numbers?

When dealing with very long numbers in PHP, it is important to use functions that can handle precise calculations without losing accuracy due to floating-point limitations. One way to achieve this is by using the BCMath extension in PHP, which provides functions for arbitrary precision mathematics. 

// Using the BCMath extension for precise calculations with very long numbers
$number1 = '123456789012345678901234567890';
$number2 = '987654321098765432109876543210';

$sum = bcadd($number1, $number2);
$diff = bcsub($number1, $number2);
$product = bcmul($number1, $number2);
$quotient = bcdiv($number1, $number2);

echo "Sum: $sum\n";
echo "Difference: $diff\n";
echo "Product: $product\n";
echo "Quotient: $quotient\n";

Keywords

PHP arbitrary precision bcmath gmp number_format

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