What are some potential pitfalls to avoid when using the explode() function in PHP?

One potential pitfall when using the explode() function in PHP is not checking if the delimiter exists in the string before using explode, as this can result in errors or unexpected behavior. To avoid this issue, you can use the strpos() function to check if the delimiter is present in the string before calling explode.

$string = "Hello,World";
$delimiter = ",";
if(strpos($string, $delimiter) !== false){
    $parts = explode($delimiter, $string);
    // Continue with processing the parts
} else {
    // Handle case where delimiter is not found
}