What potential issues should be considered when using the explode() function in PHP?

One potential issue when using the explode() function in PHP is that it may throw an error if the delimiter is not found in the input string. To prevent this error, you can check if the delimiter exists in the input string before using explode(). This can be done using the strpos() function to find the position of the delimiter in the string.

$input_string = "Hello,World";
$delimiter = ",";
if(strpos($input_string, $delimiter) !== false){
    $result = explode($delimiter, $input_string);
    print_r($result);
} else {
    echo "Delimiter not found in input string.";
}