1. Placement Question
2. PHP Interview Questions
3. PHP Multiple Choice Questions

PHP Multiple Choice Questions

17. The break statement ends execution of which of the following?
    1. while
    2. for
    3. switch
    4. All of the above

---

---

18. Which is a valid character for starting a PHP function name?
    1. Dollar Sign ($)
    2. Underscore (_)
    3. Percent (%)
    4. All of the above

---

19. Which PHP function or variable will return the value of current session id?
    1. session_id()
    2. get_session_id;
    3. $_SESSION['CURRENT_ID'];
    4. $_SESSION['ID']

---

---

20. What is the simplest method of computing the sum of all the elements of an array?
    1. array_intersect()
    2. array_count()
    3. array_sum()
    4. array_value_count()

---

21. What is the name of function used to convert an array into a string?
    1. explode()
    2. glue()
    3. implode()
    4. None of the above

---

22. _______ function is used to sort an array in ascending order by value while preserving key associations.
    1. ksort()
    2. asort()
    3. krsort()
    4. usort()

---

---

23. Array values are keyed by ______ values (called indexed arrays) or using ______ values (called associative arrays).
    1. Float, string
    2. Even number, string
    3. String, Boolean
    4. Integer, string

---

24. Which object-oriented pattern would you use to implement a class that must be instantiated only once for the entire lifespan of a script?
    1. Model-view-controller
    2. Abstract factory
    3. Singleton
    4. Proxy

---