How can the use of concatenation and string manipulation in PHP scripts help prevent unexpected errors like the one mentioned in the forum thread?

Issue: The unexpected error mentioned in the forum thread could be due to improper concatenation or string manipulation in PHP scripts. To prevent such errors, it is important to properly handle string operations, especially when dealing with variables of different types. Fix: To prevent unexpected errors, ensure that you properly concatenate strings and handle different data types when manipulating strings in PHP scripts. Use appropriate functions like `strval()` to convert variables to strings before concatenation to avoid unexpected type mismatches.

// Example PHP code snippet to prevent unexpected errors in string manipulation
$number = 10;
$string = "The number is: " . strval($number);
echo $string;