PHP Arrays
Assume you would like to sort an array in ascending order by value while preserving key associations. Which of the following PHP sorting functions would you use?

asort()
sort()
krsort()
usort()
ksort()

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PHP Arrays
What will be the output of the following PHP code?
$place = array("NYC", "LA", "Paris");
array_pop($place);
$place1 = array("Paris");
$place = array_merge($place, $place1);
print_r($place);

Array ( [0] => LA [1] => Paris [2] => Paris )
Array ( [0] => NYC [1] => LA [2] => Paris [3] => Paris )
Array ( [0] => NYC [1] => LA [2] => Paris)
None of the mentioned

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PHP Arrays
What will be the output of the following PHP code ?
$a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow");
$result = array_flip($a1);
print_r($result);

Array ( [red] => red [green] => green [blue] => blue [yellow] => yellow )
Array ( [a] => red [b] => green [c] => blue [d] => yellow )
Array ( [a] => a [b] => b [c] => c [d] => d )
Array ( [red] => a [green] => b [blue] => c [yellow] => d )

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PHP Arrays
What array will you get if you convert an object to an array?

An array with keys of that object as the array's elements
An array with properties of that array as the object's elements
An array with properties of that object as the Key elements
An array with properties of that object as the array's elements

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PHP Arrays
What will be the output of the following PHP code?
$cars = array("Volvo", "BMW", "Toyota", "Honda", "Mercedes", "Opel");
print_r(array_chunk($cars, 2));

Array ( [0] => Array ( [1] => Volvo [2] => BMW ) [1] => Array ( [1] => Toyota [2] => Honda ) [2] => Array ( [1] => Mercedes [2] => Opel ) )
Array ( [0] => Array ( [0] => Volvo [1] => Volvo ) [1] => Array ( [0] => BMW [1] => BMW ) [2] => Array ( [0] => Toyota [1] => Toyota ) )
Array ( [1] => Array ( [1] => Volvo [2] => BMW ) [2] => Array ( [1] => Toyota [2] => Honda ) [3] => Array ( [1] => Mercedes [2] => Opel ) )
Array ( [0] => Array ( [0] => Volvo [1] => BMW ) [1] => Array ( [0] => Toyota [1] => Honda ) [2] => Array ( [0] => Mercedes [1] => Opel ) )

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PHP Arrays
What will be the output of the following PHP code?
$fruits = array ("mango", "apple", "peach", "pear");
$fruits = asort ($fruits);
printr ($fruits);

Array ( [0] => apple [1] => mango [2] => peach [3] => pear )
Array ( [1] => apple [0] => mango [2] => peach [3] => pear )
Error
Array ( [1] => apple [0] => mango [3] => peach [2] => pear )

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