PHP Learn Simpli September 2, 2019 no Comments 1. What is the use of implode function in PHP? Converts string to array Converts array to string None 2. Interface helps in the following? Single inheritance Multilevel inheritance Abstraction Multiple inheritance None 3. Which function is used to remove duplicate values from an array in PHP? array_unique() array_values() array_keys() None 4. Which of the following statement is wrong related to abstract class? Can have abstract methods Can not support multiple inheritance Can have concrete methods Can support multiple inheritance None 5. What will be the output of the code snippet? <?php $A = 5; echo $A+++$A++; 10 12 11 8 None 6. Interfaces can have private access modifier for abstract method? False True None 7. What is the use of explode function in PHP? Converts array to string Converts string to array None 8. Which one will print true? var_dump(0123 == 123); var_dump('0123' == 123); var_dump('0123' === 123); 1 2 3 None None 9. Which one is true related with Header()? Header is used to load the header part All of the above Header is used to redirect Header is used to clear the cache None 10. What will be the output of the code snippet? $a = '90'; $b = &$a; $b = "2$b"; echo $b; 2 180 Generates an error 290 None Time's up
