How can PHP be used to concatenate error messages stored in an array into a single string for display?

When dealing with multiple error messages stored in an array, we can concatenate them into a single string for display by using the `implode()` function in PHP. This function takes an array of strings and concatenates them with a specified delimiter. By using `implode()` with a line break delimiter, we can create a formatted error message string that combines all the error messages.

$errors = array("Error 1", "Error 2", "Error 3");
$errorString = implode("\n", $errors);
echo $errorString;