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You are writing a PHP script and you need to start a session. How would you do this?

  • session_start()
  • start_session()
  • initialize_session()
  • open_session()
To start a session in PHP, you can use the session_start() function. This function must be called at the beginning of your PHP script before any session variables are accessed. It initializes a new session or resumes an existing session. For more details, refer to: http://php.net/manual/en/function.session-start.php
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You have a PHP script and you need to create an object from a class. How would you do this?

  • Using the new keyword and the class name
  • Using the create() function and the class name
  • Using the instanceof keyword and the class name
  • Using the object() function and the class name
In PHP, to create an object from a class, you use the new keyword followed by the class name and parentheses. The correct option is "Using the new keyword and the class name." This instantiates an object based on the defined class. For more information, consult the PHP documentation on creating objects: http://php.net/manual/en/language.oop5.php
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How can you propagate a session id?

  • Using cookies
  • Using URL parameters
  • Using HTTP headers
  • All of the above
A session id can be propagated using cookies, URL parameters, or HTTP headers. These methods allow the server to identify the client's session. Learn more: http://php.net/manual/en/intro.session.php
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PHP code is enclosed in ______ and ______ tags.

  • <?php, ?>
  • <html>, </html>
  • <php>, </php>
  • <script>, </script>
PHP code is typically enclosed in <?php and ?> tags. When the PHP interpreter encounters these tags, it knows to start and stop interpreting the code between them as PHP code. This allows you to embed PHP code in an HTML file. Learn more: https://www.php.net/manual/en/language.basic-syntax.phptags.php
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A common use case for the $_GET superglobal in PHP is to collect the data sent in the ______.

  • URL's query string
  • Request body
  • Path parameters
  • Headers
A common use case for the $_GET superglobal in PHP is to collect the data sent in the URL's query string. This includes parameters or values appended to the URL as key-value pairs. By using the $_GET superglobal, you can access and process this data to dynamically generate content, perform searches, or filter data based on user input. The other options, such as request body, path parameters, or headers, are not specifically associated with the $_GET superglobal. Learn more: https://www.php.net/manual/en/reserved.variables.get.php
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In PHP, the * operator is used for ______.

  • Multiplication
  • Division
  • Subtraction
  • Addition
In PHP, the * operator is used for multiplication. It is used to multiply two numbers and obtain their product. For example, $result = $num1 * $num2; will multiply the values of $num1 and $num2 and store the result in $result. Learn more: https://www.php.net/manual/en/language.operators.arithmetic.php
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In PHP, you can start a session using the session_start() ______.

  • function
  • method
  • statement
  • command
In PHP, you can start a session using the session_start() function. This function is called as a statement to initialize a new session or resume an existing session. It needs to be called at the beginning of your PHP script before any session variables are accessed. Refer to: http://php.net/manual/en/function.session-start.php
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Which of the following are true about the for loop in PHP?

  • It allows you to specify the exact number of iterations
  • It always executes the code block at least once
  • It can be used to iterate over an array
  • It is the only loop construct available in PHP
The for loop in PHP allows you to specify the exact number of iterations you want the loop to perform. By initializing a counter variable, setting the condition for termination, and updating the counter after each iteration, you can control the flow of the loop. The for loop will execute the code block as long as the condition is true. It is a versatile loop construct that can be used to iterate over arrays, perform a specific number of iterations, or perform repetitive tasks. Learn more: https://www.php.net/manual/en/control-structures.for.php
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Explain how you can update Memcached when you make changes to PHP?

  • Memcached does not require updating when making changes to PHP
  • Restart the Memcached server
  • Clear the Memcached cache
  • None of the above
To update Memcached when making changes to PHP, you need to clear the Memcached cache. This ensures that the updated data and changes are reflected in the cache. You can do this by flushing or deleting the relevant keys or by clearing the entire cache. Learn more: http://php.net/manual/en/book.memcached.php
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What is the default keyword used for in a PHP switch statement?

  • To specify a block of code to be executed if no case matches the expression
  • To set a default value for the switch statement
  • To skip the current case and move to the next case
  • To end the switch statement and resume normal execution
In a PHP switch statement, the default keyword is used to specify a block of code to be executed 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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