What potential pitfalls should be considered when dealing with numeric data types in PHP, such as float and integer?

When dealing with numeric data types in PHP, such as float and integer, potential pitfalls to consider include precision loss when performing calculations with floats, unexpected results from type juggling, and overflow/underflow issues with integers. To mitigate these issues, it's important to be aware of the limitations of each data type and handle conversions and calculations carefully.

// Example of handling precision loss with floats
$float1 = 0.1;
$float2 = 0.2;
$sum = $float1 + $float2;

echo round($sum, 2); // Output: 0.3