How does PHP handle overflow when working with integer values?

When working with integer values in PHP, overflow can occur when a calculation results in a value that exceeds the maximum integer size that PHP can handle. To handle overflow, you can use the `bcmath` extension in PHP, which provides arbitrary precision mathematics functions that can handle large integer values without overflowing. 

// Using the bcmath extension to handle overflow when working with integer values
$largeNumber1 = '99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999';
$largeNumber2 = '99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999';

$sum = bcadd($largeNumber1, $largeNumber2);
echo $sum;

Keywords

PHP integer values overflow handling data types

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