Php Programming 1000+ MCQ with answer for UPSC CDS

 <?php  $i = 0;
while (++$i && --$i){       print $i;
} ?> 

 <?php  define(__LINE__, PHP is a scripting language);
echo __LINE__;
?> 

 <?php  $i = 0;
while(++$i || --$i){       print $i;
} ?> 

 <?php  $i = ;
while ($i = 10){       print hi;
}print hello;
?> 

     <?php      printf( date(t) )     ?> 

 <?php  $color1 = red;
$color2 = green;
echo $color1.$color2;
?> 

     <?php      echo (checkdate(4,31,2010) ? 'Valid' : 'Invalid');
?> 

 <?php  $i = 0;
while ($i = 10){       print hi;
}print hello;
?> 

 <?php  define('GOOD_OCTAL', 0700);
define('BAD_OCTAL', 0600);
print GOOD_OCTAL;
print '
';
print BAD_OCTAL;
?> 

PHP files have a default file extension of..

 <?php  $color1 = red;
$color2 = red;
echo $color1 + $color2;
?> 

 <?php  $a1 = array(red, green);
$a2 = array(blue, yellow);
print_r(array_merge($a1, $a2));
?> 

 <?php  $color = red;
echo $color . red ;
?> 

A PHP script should start with ___ and end with ___:

     <?php      echo Today is .date(F d, Y)     ?> 

 <?php  $color1 = 1;
$color2 = 1;
echo $color1 + $color2;
?> 

 <?php  define('IF', 42);
echo IF: , IF;
?> 

 <?php  $i = 5;
while (--$i > 0){       $i++;
print $i;
print hello;
} ?> 

 <?php  $a = array(A, Cat, Dog, A, Dog);
print_r(array_count_values($a));
?> 

 <?php  $i = 5;
while (--$i > 0 || ++$i){       print $i;
} ?> 

 <?php  $i = 2;
while (++$i){       while ($i --> 0)        print $i;
} ?> 

 <?php  $i = 0;
while ((--$i > ++$i) - 1){       print $i;
} ?> 

 <?php  define(GREETING, PHP is a scripting language, true);
echo GREETING;
echo 
echo GREETING;
?> 

 <?php  class myObject { }define('myObject::CONSTANT', 'test');
echo myObject::CONSTANT;
?> 

 <?php  $color1 = red;
$color2 = 1;
echo $color1 + $color2;
?> 

 <?php  $a = array(red, green, blue);
array_pop($a);
print_r($a);
?> 

 <?php  $i = 2;
while (++$i){       while (--$i > 0)        print $i;
} ?> 

 <?php  $cars = array(Volvo, BMW, Toyota);
echo I like  . $cars[0] . ,  . $cars[1] .  and  . $cars[2] . .;
?> 

What will be the output of the following code?

<?php 
$foo = 'Bob';              
$bar = &$foo;              
$bar = "My name is $bar";  
echo $bar;
echo $foo;
?>

 <?php  $color1 = red;
$color2 = green;
echo $color1 . $color2;
?> 

What does PHP stand for?

i) Personal Home Page
ii) Hypertext Preprocessor
iii) Pretext Hypertext Processor
iv) Preprocessor Home Page

 <?php  define('GREETING_TEST', 'PHP is a scripting language', true);
echo GREETING_TESt;
$changing_variable = 'test';
echo constant('GREETING_' . strtoupper($changing_variable));
?> 

Which of the following PHP statements will output Hello World on the screen?
i) echo (“Hello World”);
ii) print (“Hello World”);
iii) printf (“Hello World”);
iv) sprintf (“Hello World”);

 <?php  $cars = array(Volvo, BMW, Toyota, Honda, Mercedes, Opel);
print_r(array_chunk($cars, 2));
?> 

 <?php  $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
print_r($result);
?> 

 <?php  $age = array(Peter=>35, Ben=>37, Joe=>43);
print_r(array_change_key_case($age, CASE_UPPER));
?> 

 <?php  $a1 = array_fill(3, 4, blue);
$b1 = array_fill(0, 1, red);
print_r($a1);
echo 
;
print_r($b1);
?> 

 <?php  $color1 = red;
$color2 = green;
echo $color1 + $color2;
?>