Web Development College Quiz 5

Question 1

PHP can generate PDF files based on database data, which is useful in creating reports.

Select one:

  • True
  • False

The correct answer is 'True'.


Question 2

True or False: PHP generated PDF files can use custom fonts.

Select one:

  • True
  • False

The correct answer is 'True'.


Question 3

Given the PHP code:

$row=mysql_fetch_array($r); What type of variable is $row ? Select one:

  • a. string
  • b. array()
  • c. integer
  • d. boolean

The correct answer is: array()


Question 4

Given that a database table has a field called FirstName, which code displays an element or field from the database record?

Select one:

  • a. echo $row['FirstName'];
  • b. show $row['name'];
  • c. echo $row[name];
  • d. echo $row(name);

The correct answer is: echo $row['FirstName'];


Question 5

PHP variables are weekly typed, which means that:

Select one:

  • a. you can’t store data in them for a long time
  • b. you do not have to define their type before you initialize them
  • c. strongly typed languages like Java are better
  • d. strongly typed languages do not require variable definitions

The correct answer is: you do not have to define their type before you initialize them


Question 6

What function can you use to get the position of a string or character inside a string?

Select one:

  • a. string_position()
  • b. length()
  • c. len()
  • d. strrpos()

The correct answer is: strrpos()


Question 7

When installing online applications on a PHP server, what information is needed?

Select one:

  • a. database username
  • b. database password
  • c. database host name
  • d. All of the above

The correct answer is: All of the above


Question 8

What is the valid way to start a PHP function?

Select one:

  • a. function test{}
  • b. function test[]
  • c. def function test{}
  • d. function test()

The correct answer is: function test()


Question 9

Which one is NOT a valid PHP comparison operator?

Select one:

  • a. !=
  • b. <>
  • c. !<
  • d. ===

The correct answer is: !<


Question 10

What character concatenates strings in PHP?

Select one:

  • a. ;
  • b. &
  • c. *
  • d. .

The correct answer is: .


Question 11

Which of the following is a valid way to start a for loop in PHP that would print out the numbers 0 through 4?

Select one:

  • a. for($i < 5; $i = 0;)
  • b. for($i = 0; $i < 5; $i++)
  • c. for($i < 5;)
  • d. for( $i < 5; $i = 0; $i++)

The correct answer is: for($i = 0; $i < 5; $i++)


Question 12

What will be the value of $var?

$var = 1 / 2; Select one:

  • a. 0
  • b. 0.5
  • c. 1
  • d. 2

The correct answer is: 0.5


Question 13

What will be printed?

1
2
3
4
5
6
$var = true;
if ($var) {
     echo 'true';
} else {
     echo 'false';
}

Select one:

  • a. false
  • b. error
  • c. warning
  • d. true

The correct answer is: true


Question 14

How can comments be implemented in PHP?

Select one:

  • a. // commented code to the end of the line
  • b. / commented code can be on multiple lines /
  • c. # commented code to the end of the line
  • d. All of the above

The correct answer is: All of the above


Question 15

What is the correct way to add 1 to the $count variable?

Select one:

  • a. $count =+1
  • b. ++count
  • c. count+;
  • d. None of the above

The correct answer is: None of the above

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