PHP, Drupal & SQL Online Test

Consider the following PHP pseudo code:

The processArray function processes the $data array based on the transformation operations defined in the $operations array. The operations array dictates which transformation function to call for each sub-array key. What will be the output of the above code?

What does the following code output?

What does the following code output?

Consider the following table data and PHP code. What is the result?

Consider the following PHP script:

Assuming you run the script twice in a row without clearing the session data, what will be the output on the second run?

Review the following Drupal code:

Pick the correct statements:

A: When /sample is accessed, access is allowed without checking for permissions and SampleController::content method is invoked
B: When /sample is accessed, ‘access content’ permission is checked on the accessing user and, if access is granted, SampleController::content method is invoked
C: When /sample is accessed, the page outputs ‘A’ on the page with title ‘B’
D: When /sample is accessed, the page outputs ‘B’ on the page with title ‘A’
E: When /sample is accessed, the page outputs ‘A’ on the page with no title
F: When /sample is accessed, the page outputs nothing on the page with title ‘B’

Review the following Drupal code:

Pick the correct statements:

A: Both the snippets create the queries to run but are not executed until $query→execute() is called
B: When Snippet 2 is run, the insert statements are executed one after the other always. Equivalent to calling →execute() two separate times for each item in $values.
C: When Snippet 2 is run, depending on the database, the insert statements will be executed together in a transaction
D: The return value of $result→execute will be the inserted record entry

Consider the following SQL table:

How many rows does the following SQL query return?

Consider the following SQL table:

Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?

Consider the following SQL table:

Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?

Consider the following SQL table:

What will be the first two tuples resulting from the following SQL command?

Consider the following SQL table:

How many tuples does the following query return?

We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.

For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.

⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 

Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 

⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.