U can use get_class_methods($e) to view more methods.
(PHP 5 >= 5.1.0, PHP 7)
Exception::getMessage — Gets the Exception message
Returns the Exception message.
This function has no parameters.
Returns the Exception message as a string.
Example #1 Exception::getMessage() example
<?php
try {
throw new Exception("Some error message");
} catch(Exception $e) {
echo $e->getMessage();
}
?>
The above example will output something similar to:
Some error message