Are there any potential pitfalls when converting integers to hexadecimal strings in PHP?
When converting integers to hexadecimal strings in PHP, one potential pitfall is that negative integers may not be converted correctly. To solve this issue, you can use the `dechex()` function which handles negative integers correctly by converting them to their two's complement representation.
$number = -10;
$hexString = dechex($number);
echo $hexString; // Output: fffffffffffffff6