How can the error message "Warning: implode() [function.implode]: Bad arguments." be avoided in PHP?

The error message "Warning: implode() [function.implode]: Bad arguments." typically occurs when the implode function in PHP is called with incorrect arguments. To avoid this error, ensure that the implode function is provided with an array as the first argument and a string delimiter as the second argument.

// Example of correct usage of implode function
$array = array('apple', 'banana', 'orange');
$delimiter = ', ';
$result = implode($delimiter, $array);
echo $result;