Latest php Interview Questions and Answers 2024 for Freshers and Experienced
If you're looking for current PHP interview questions and answers, you've come to the right place! This Latest 2024 Question List will provide you with a comprehensive list of trending PHP interview questions and answers asked in Top Companies interview round.
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| # | Question | Options | Answer |
|---|---|---|---|
| 1 | What does PHP stand for? | Hypertext Preprocessor | |
| 2 | Which symbol is used to prepend variables in PHP? | $ | |
| 3 | Which of the following is the correct way to declare a variable in PHP? | $variableName = value | |
| 4 | Which of the following functions is used to output text in PHP? | All of the above | |
| 5 | How do you create an array in PHP? | $array = array("value1", "value2", "value3") | |
| 6 | Which of the following is used to get the length of a string in PHP? | strlen($string) | |
| 7 | Which superglobal variable is used to collect form data sent with both GET and POST methods? | $_REQUEST | |
| 8 | How do you define a constant in PHP? | define("CONSTANT_NAME", "value") | |
| 9 | Which of the following is used to check if a variable is set and is not NULL in PHP? | isset() | |
| 10 | Which of the following is used to connect to a MySQL database in PHP? | mysqli_connect() | |
| 11 | Which function is used to start a session in PHP? | session_start() | |
| 12 | Which function is used to start a session in PHP? | session_start() | |
| 13 | Which of the following is used to terminate the execution of a script in PHP? | exit | |
| 14 | Which of the following is correct about PHP variables? | Variables do not need to be declared before use. | |
| 15 | Which function is used to start output buffering in PHP? | ob_start() | |
| 16 | Which superglobal variable holds information about headers, paths, and script locations? | $_SERVER | |
| 17 | How do you remove an element from an array in PHP? | unset($array[index]) | |
| 18 | Which PHP function is used to destroy a session? | D) session_destroy() | |
| 19 | Which PHP function is used to find the length of a string? | B) strlen() | |
| 20 | What function is used to search for the position of the first occurrence of a substring in a string? | A) strpos() | |
| 21 | Which PHP function is used to replace all occurrences of a search string with a replacement string? | B) str_replace() | |
| 22 | What function converts a string to all lowercase letters in PHP? | D) strtolower() | |
| 23 | To convert a string to all uppercase letters in PHP, you use which function? | D) strtoupper() | |
| 24 | Which PHP function is used to reverse a string? | C) strrev() | |
| 25 | To compare two strings in PHP, which function is used? | C) strcmp() | |
| 26 | Which function is used to repeat a string a specified number of times in PHP? | B) str_repeat() | |
| 27 | What PHP function is used to split a string into an array by a specified delimiter? | C) explode() | |
| 28 | To join array elements into a single string using a delimiter, which function do you use in PHP? | B) implode() | |
| 29 | Which PHP function is used to format a Unix timestamp into a human-readable date? | D) date() | |
| 30 | What function generates a unique ID in PHP? | C) uniqid() | |
| 31 | Which PHP function is used to sort an array in ascending order? | C) sort() | |
| 32 | To sort an array in descending order in PHP, you use which function? | A) rsort() | |
| 33 | To sort an associative array in descending order by value in PHP, which function do you use? | A) arsort() | |
| 34 | To sort an associative array in descending order by keys in PHP, which function is used? | A) krsort() | |
| 35 | Which PHP function shuffles the elements of an array randomly? | A) shuffle() | |
| 36 | What function is used to count all elements in an array in PHP? | A) count() | |
| 37 | Which PHP function merges two or more arrays into a single array? | A) array_merge() | |
| 38 | Which function is used to count all elements in an array? | D) count() | |
| 39 | How do you add an element to the end of an array? | C) array_push() | |
| 40 | Which function is used to remove the last element of an array? | A) array_pop() | |
| 41 | What function adds one or more elements to the beginning of an array? | A) array_unshift() | |
| 42 | Which function is used to remove the first element of an array? | B) array_shift() | |
| 43 | How do you merge two or more arrays in PHP? | B) array_merge() | |
| 44 | Which function is used to check if a value exists in an array? | B) in_array() | |
| 45 | How do you get all the keys of an array? | A) array_keys() | |
| 46 | Which function returns all the values of an array? | A) array_values() | |
| 47 | How do you sort an array in ascending order? | B) sort() | |
| 48 | Which function sorts an array in descending order? | A) rsort() | |
| 49 | What function returns the number of elements in an array? | C) count() | |
| 50 | How do you extract a slice of an array? | A) array_slice() | |
| 51 | Which function removes a portion of an array and replaces it with something else? | B) array_splice() | |
| 52 | What function searches an array for a given value and returns the key? | A) array_search() | |
| 53 | How do you apply a user function to every member of an array? | C) array_walk() | |
| 54 | Which function returns an array with elements in reverse order? | A) array_reverse() | |
| 55 | How do you remove duplicate values from an array? | A) array_unique() | |
| 56 | Which function calculates the sum of values in an array? | A) array_sum() | |
| 57 | How do you determine if a variable is an array? | A) is_array() | |
| 58 | What keyword is used to define a class in PHP? | B) class | |
| 59 | What is the visibility keyword to make a property or method accessible only within the class itself? | C) private | |
| 60 | How do you define a constant in a class? | A) const NAME = value | |
| 61 | What keyword is used to inherit from a parent class? | B) extends | |
| 62 | Which keyword is used to define a method that must be implemented by all subclasses of an abstract class? | C) abstract | |
| 63 | What keyword is used to implement an interface in a class? | C) implements | |
| 64 | Can a class implement multiple interfaces in PHP? | Yes | |
| 65 | What keyword prevents a class from being inherited? | B) final | |
| 66 | Which visibility keyword allows a property or method to be accessed from within the class and its subclasses? | B) protected | |
| 67 | What is the keyword to make a property or method belong to the class rather than an instance? | A) static | |
| 68 | Which magic method is called when an object is serialized? | C) __sleep() | |
| 69 | What method is called when an object is destroyed? | C) __destruct() | |
| 70 | What is the visibility keyword to make a property or method accessible from outside the class? | A) public | |
| 71 | Which keyword is used to define a trait in PHP? | A) trait | |
| 72 | How do you use a trait in a class? | A) use TraitName |
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On PHP
On PHP