What are the potential pitfalls of using base_convert() with hexadecimal inputs in PHP?

When using base_convert() with hexadecimal inputs in PHP, one potential pitfall is that it may not handle leading zeros correctly. This can result in unexpected output or errors in the conversion process. To solve this issue, you can use the hexdec() function to convert the hexadecimal input to a decimal number before using base_convert().

// Convert hexadecimal input to decimal using hexdec() before using base_convert()
$hex_input = '0x1A'; // hexadecimal input
$decimal_input = hexdec($hex_input); // convert hexadecimal to decimal
$converted_output = base_convert($decimal_input, 10, 2); // convert decimal to binary

echo $converted_output; // output the converted binary value