Which of the following are true about the default keyword in a PHP switch statement?
- It specifies the code to execute if no case matches the expression
- It represents a specific case value
- It is optional in every switch statement
- It can only be used with strings
The default keyword in a PHP switch statement specifies the code to execute if no case matches the expression. It serves as the default option when none of the case conditions evaluate to true. The default case is optional and is placed at the end of the switch statement. If no case matches the expression, the code block following the default case is executed. The default case allows you to define a fallback action or a default behavior when none of the specific cases are met. Learn more: https://www.php.net/manual/en/control-structures.switch.php
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