What potential pitfalls should be considered when converting data types in PHP?

When converting data types in PHP, potential pitfalls to consider include data loss, unexpected behavior due to implicit conversions, and errors caused by invalid conversions. To avoid these pitfalls, always check the validity of the data before converting it, use appropriate type-checking functions, and handle errors gracefully.

// Example code snippet demonstrating how to check the validity of data before converting it
$value = "123";

// Check if the value is numeric before converting it to an integer
if (is_numeric($value)) {
    $intValue = (int)$value;
    echo $intValue;
} else {
    echo "Invalid data type";
}