11. What will be the output of the following php code?
    

    <?php
    $n  = "12";
    $n1 = "21";
    print $n+$n1;
    ?>
    

1. 1. 33

   
   
   

   2. Error

   
   
   

   3. 12+21

   
   
   

   4. 12

   
   
   

   5. 21

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   The numbers inside the double quotes are considered as integers and not string, therefore the value 33 is printed and not 12+21.

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12. Which of following variables can be assigned a value to it?
    

1. 1. $this

   
   
   

   2. $3hello

   
   
   

   3. $This

   
   
   

   4. $_hello

   
   
   

   5. Both C and D

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   A variable can’t start with a number. Also $this is a special variable that can’t be assigned, but $This can be assigned.

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13. What will be the output of the following code?
    

    <?php 
    $name = 'Ajit';              
    $temp = &$name;              
    $temp = "My name is $temp. ";  
    echo $temp;
    echo $name;
    ?>
    

1. 1. AjitAjit

   
   
   

   2. My name is Ajit. My name is Ajit.

   
   
   

   3. Ajit

   
   
   

   4. Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   The $temp = &$name; line will reference $name via $temp.

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14. Which of the following PHP statements will output Hello interview Mania on the screen?
    

1. 1. sprintf (“Hello interview Mania ”);

   
   
   

   2. echo (“Hello interview Mania ”);

   
   
   

   3. print (“Hello interview Mania ”);

   
   
   

   4. printf (“Hello interview Mania ”);

   
   
   

   5. B, C and D

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   echo(), print() and printf() all three can be used to output a statement onto the screen. The sprintf() statement is functionally identical to printf() except that the output is assigned to a string rather than rendered to the browser.

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15. What will be the output of the following PHP code?
    

    <?php
    $var = "YELLOW";
    $var1 = $var[5];
    echo "$var1";
    ?>
    

1. 1. Y

   
   
   

   2. E

   
   
   

   3. L

   
   
   

   4. O

   
   
   

   5. W

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   PHP treats strings in the same fashion as arrays, allowing for specific characters to be accessed via array offset notation.

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