PHP · all questions

Basic PHP
practice.

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54

Questions

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Q21

Which of the below symbols is a newline character?

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Q22

What will be the output of the following PHP code?

<?php
$num = 10;
echo 'What is her age? \n She is $num years old';
?>

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Q23

Which of the conditional statements is/are supported by PHP? 1. if statements 2. if-else statements 3. if-elseif statements 4. switch statements

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Q24

What will be the output of the following PHP code?

<?php
$team = "arsenal";
switch ($team) 
{
case "manu":
  echo "I love man u";
case "arsenal":
  echo "I love arsenal";
case "manc":
  echo "I love manc"; 
}
?>

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Q25

Which of the looping statements is/are supported by PHP?
1. for loop
2. while loop
3. do-while loop
4. foreach loop

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Q26

What will be the output of the following PHP code?

<?php
$user = array("Ashley", "Bale", "Shrek", "Blank");
for ( $x < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > 0 < / s p an >;$ x < count( $u ser < s p an c l a ss = " p - b l u e " >) < / s p an >;$ x++)
{
  if ( $u ser < s p an c l a ss = " p - b l u e " > [< / s p an >$ x] == "Shrek") continue;
  printf ( $u ser < s p an c l a ss = " p - b l u e " > [< / s p an >$ x]); 
}
?>

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Q27

If

a = 12 w ha tw i l l b er e t u r n e d w h e n (

a == 12) ? 5 : 1 is executed?

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Q28

What is the value of

aan d

b after the function call?

<?php
function doSomething( &$arg ) 
{
   $r e t u r n < s p an c l a ss = " p - b l u e " >=< / s p an >$ arg;
  $arg += 1;
  return $return;	
}
$a = 3;
 $b < s p an c l a ss = " p - b l u e " >=< / s p an > d o S o m e t hin g < s p an c l a ss = " p - b l u e " > (< / s p an >$ a );
?>

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Q29

Who is the father of PHP?

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Q30

How does the identity operator === compare two values?

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Q31

Under what circumstance is it impossible to assign a default value to a parameter while declaring a function?

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Q32

Variables always start with a ........ in PHP

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Q33

PHP is an open source software.

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Q34

Which of the following is not valid PHP code?

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Q35

PHP runs on different platforms (Windows, Linux, Unix, etc.)

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Q36

You can test the type of any variable with the ..... function.

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Q37

Assigning the empty string (like ' ') to a variable automatically renders it empty.

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Q38

If you echo a Boolean variable, the value FALSE displays as a .... and the value TRUE echoes as a .....

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Q39

When a simple data type is casted to an array, an array is created with the original value in the first element.

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Q40

String values must be enclosed in ......

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