Which of the following are true about functions in PHP?
- Functions cannot have parameters.
- Functions can only be used once in a PHP script.
- Functions can be called recursively.
- Functions can only be defined in a separate file.
In PHP, functions can have parameters, allowing them to accept input values. Functions can be used multiple times within a PHP script. Recursive functions are those that call themselves within their own definition. Functions can be defined directly in a PHP script or in separate files and included as needed. Learn more: https://www.php.net/manual/en/functions.user-defined.php
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