What are the potential challenges or pitfalls to be aware of when working with mathematical calculations in PHP?

One potential challenge when working with mathematical calculations in PHP is the risk of encountering floating-point precision errors. To mitigate this issue, you can use the `bcmath` extension in PHP, which provides arbitrary precision mathematics functions for working with numbers. 

// Use the bcmath extension for arbitrary precision mathematics
$number1 = '0.1';
$number2 = '0.2';

$result = bcadd($number1, $number2, 10); // Specify precision as the third argument

echo $result; // Outputs 0.3

Keywords

floating point precision integer overflow division by zero math functions error handling

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