Learn PHP MCQs
Prepare PHP MCQs (Multiple choice Questions) for exam and job interviews.
How do you merge two arrays in PHP?
1) array_merge()
2) merge_arrays()
3) array_combine()
4) array_merge_arrays()
Answer : Option 1
What is the purpose of the `var_dump()` function in PHP?
1) To dump information about a variable
2) To display the contents of an array
3) To print a variable
4) To delete a variable
Answer : Option 1
Which function is used to replace all occurrences of a search string with a replacement string in PHP?
1) str_replace()
2) replace()
3) string_replace()
4) replace_string()
Answer : Option 1
How do you check if a variable is null in PHP?
1) is_null()
2) check_null()
3) is_none()
4) is_undefined()
Answer : Option 1
Which of the following functions is used to sort an array in reverse order in PHP?
1) rsort()
2) reverse_sort()
3) array_reverse_sort()
4) reverse()
Answer : Option 1
Which of the following is the correct way to pass variables to a function by reference in PHP?
1) function myFunction(&$var)
2) function myFunction(&var)
3) function myFunction(var &)
4) function myFunction(var &reference)
Answer : Option 1
What is the purpose of the `is_numeric()` function in PHP?
1) To check if a variable is a number or a numeric string
2) To check if a variable is an integer
3) To check if a variable is a string
4) To check if a variable is a float
Answer : Option 1
Which function is used to generate a random number between two given values in PHP?
1) rand()
2) random()
3) generate_random()
4) random_number()
Answer : Option 1
How do you check if a string contains a specific word in PHP?
1) strpos()
2) str_contains()
3) find_string()
4) contains()
Answer : Option 1
Which of the following is used to get the first element of an array in PHP?
1) reset()
2) first()
3) array_first()
4) array_first_element()
Answer : Option 1