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What happens if a user forgets to close an open MySQL connection within a PHP script?
- The connection stays open and can be recycled by other processes
- The web server runs into a timeout
- PHP closes the connection when the script has ended
- PHP throws an exception, it is mandatory that you close the connection
When should you start a session using session_start()?
- Before any HTML output
- At the end of the script to minimize resource usage
- Right before accessing $_SESSION
- No need to call the function, as PHP will do that automatically
PHP will automatically convert strings to numbers when it needs to.
Is it possible to pass data from PHP to JavaScript?
- No, because PHP is server-side, and JavaScript is client-side.
- No, because PHP is a loosely typed language.
- Yes, because JavaScript executes before PHP.
- Yes, because PHP can generate valid JavaScript
Is it possible to submit form without having submit button ?
When a form with a password field is submitted to the server, which data is sent for that field?
- Its content, Base64-encoded
- Its content, in clear text
- The user is prompted to switch to SSL prior to form submit
- Its content, hashed with SHA-1
- Password fields are not sent to the server due to security reasons
Which of these file types should usually not be loaded into the page using readfile()?
Where is PHP code most commonly run?
- Within the HTML interpreter
- In a web browser
- On a web server
- In a database
Where is the actual session data stored?
- In shared memory
- In a cookie
- On the client
- On the server
Which attack can be avoided with mysqli_real_escape_string()?
- Cross-Site Scripting
- Replay Attack
- SQL Injection
- Cross-Site Request Forgery
