PHP Online Quiz

Q 1 - Which of the following is true about php variables?

A - All variables in PHP are denoted with a leading dollar sign ($).

B - The value of a variable is the value of its most recent assignment.

C - Variables are assigned with the = operator, with the variable on the left-hand side and the expression to be evaluated on the right.

D - All of the above.

Q 2 - Which of the following type of variables have only two possible values either true or false?

A - Integers

B - Doubles

C - Booleans

D - Strings

Q 3 - Which of the following is correct about NULL?

A - A variable that has been assigned NULL evaluates to FALSE in a Boolean context.

B - A variable that has been assigned NULL returns FALSE when tested with IsSet() function.

C - Both of the above.

D - None of the above.

Q 4 - Which of the following keyword terminates the for loop or switch statement and transfers execution to the statement immediately following the for loop or switch?

A - break

B - continue

Q 5 - Which of the following function creates an array?

A - array()

B - array_change_key_case()

C - array_chunk()

D - array_count_values()

Q 6 - Which of the following function checks if a specified value exists in an array?

A - extract()

B - in_array()

C - key()

D - krsort()

Q 7 - Can you assign the default values to a function parameters?

A - true

B - false

Q 8 - Which of the following provides access to the uploaded file in the temporary directory on the web server?

A - $_FILES['file']['tmp_name']

B - $_FILES['file']['name']

C - $_FILES['file']['size']

D - $_FILES['file']['type']

Q 9 - Which of the following method of Exception class returns source line?

A - getMessage()

B - getCode()

C - getFile()

D - getLine()

Q 10 - Which of the following method can be used to create a MySql database using PHP?

A - mysql_connect()

B - mysql_query()

C - mysql_close()

D - None of the above