1. 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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2. Which of the following php statement/statements will store 120 in variable n?
   

1. 1. 120 = $n;
      

   
   
   

   2. int $n= 120;

   
   
   

   3. int n= 120;

   
   
   

   4. $n= 120;

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   You need not specify the datatype in php.

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

   <?php
   $n  = 10;
   $n1 = 12;
   print $n . "+". $n1;
   ?>
   

1. 1. 10

   
   
   

   2. 12

   
   
   

   3. 10+12

   
   
   

   4. 12+10

   
   
   

   5. Error

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   .(dot) is used to combine two parts of the statement. Example ( $n. “Hello World” ) will output 10Hello World.

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4. 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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5. 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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