Multiple choice php

Which of the following snippets prints a representation of 42 with two decimal places?





    

      
    
            
  1. 
              
    printf("%.2d\n", 42);
    
    
            
    2. 
            
  2. 
              
    printf("%1.2f\n", 42);
    
    
            
    3. 
            
  3. 
              
    printf("%1.2u\n", 42);
    
    
            
    4. 
            
  4. 
              
    none of the above
    
    
            
    5. 
      

    


    

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        B
        Correct answer
      

        

          Explanation
          

            
The '%f' specifier is used for floating-point numbers. In printf, '%1.2f' tells PHP to treat the input as a float and display it with at least one digit before the decimal and exactly two digits after. Even though 42 is an integer, it is cast to 42.00.


          

        

    

  



          

      
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