PHP: Hypertext Preprocessor Additional Practice Test

Q1

Who created the PHP scripting language in 1994?

A.Rasmus Lerdorf B.Tim Berners-Lee C.Ed Guilbert D.Paul Mockapetris

Q2

Which of the following describes why PHP is classified as an interpreted language?

A.It must be compiled into an executable file before running. B.PHP files are interpreted line by line by the web server. C.It runs entirely within the client's web browser without server interaction. D.It requires a database connection to parse any static text.

Q3

Which of the following is an invalid variable name in PHP because it contains an illegal special character?

A.\$my_report1 B.\$_hidden C.\$full-name D.\$age

Q4

If a PHP script declares \$name = "Balu"; and later attempts to output \$Name, what will occur?

A.It outputs "Balu" because variable names are case-insensitive. B.It references a completely different, uninitialized variable because variable names are case-sensitive. C.The script fails to run due to a syntax error. D.It automatically converts the string to uppercase.

Q5

Which PHP data type represents a connection to an external database or file?

A.Object B.Resource C.NULL D.Array

Q6

Which of the following is true regarding the case sensitivity of the NULL keyword in PHP?

A.The keyword NULL is strictly case-sensitive and must be uppercase. B.The keyword NULL is not case-sensitive. C.NULL must be enclosed in double quotes to be valid. D.NULL is case-sensitive only when used in double quotes.

Q7

Which of the following statements is true about using parentheses with the PHP echo statement?

A.Parentheses are strictly required around arguments. B.Parentheses are not required but using them will not cause an error. C.Echo statements never accept parentheses. D.Parentheses are required only when outputting multiple string arguments.

Q8

To safely output a string of text that contains a single quote using the echo statement, which of the following is recommended?

A.Enclose the entire string in single quotes. B.Enclose the entire string in double quotes. C.Omit the semicolon at the end of the statement. D.Precede the entire echo statement with a hash symbol.

Q9

If you compare 5 === 5.0 in PHP, what is the returned result and why?

A.True, because they have equivalent mathematical values. B.False, because they are not of the same data type. C.True, because the double equals operator is identical. D.False, because the values are mathematically different.

Q10

How does the logical XOR operator work in PHP?

A.It returns true if both operands are true. B.It returns true if at least one of the operands is true. C.It returns true if exactly one of the operands is true. D.It returns true only if both operands are false.

Q11

In PHP, what is the behavior of the post-increment operator (\$a++)?

A.First, \$a is incremented by 1, and then the new value is returned. B.First, the current value of \$a is returned, and then it is incremented by 1. C.It decrements \$a by 1 before returning the value. D.It multiplies \$a by 1 and returns the same value.

Q12

Which of the following is the string concatenation operator in PHP?

A.+ B.. C.& D.,

Q13

Where are PHP scripts executed in a typical web application setup?

A.On the client's computer inside the web browser. B.On the server side, before the output is sent to the client. C.Within the database engine exclusively. D.By the client's operating system as a background service.

Q14

Which of the following can be used to initiate a single-line comment in PHP?

A./* B.// or # C.

12th Standard Computer Applications — PHP: Hypertext Preprocessor: Additional Online Practice Test

Set up your test