How can developers effectively debug issues related to explode() function usage in PHP, especially when dealing with string manipulation?

When debugging issues related to the explode() function in PHP, developers should carefully check the delimiter used to split the string and ensure that it matches the actual delimiter in the string. Additionally, they should verify the input string for any unexpected characters or formatting that may affect the explode() function's behavior.

// Example PHP code snippet to debug explode() function usage
$string = "apple,banana,orange";
$delimiter = ",";
$parts = explode($delimiter, $string);

if($parts === false) {
    echo "Error in explode function";
} else {
    print_r($parts);
}