What will be the output of the following PHP code?<br/>$number = array ("4", "hello", 2);<br/>echo (array_sum ($number));

PHP Arrays
What will be the output of the following PHP code?
$number = array ("4", "hello", 2);
echo (array_sum ($number));

2

4

4hello2

6

2

4

4hello2

6

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PHP Arrays
What function computes the difference of arrays?

array_diff

arrays_diff

diff_array

diff_arrays

array_diff

arrays_diff

diff_array

diff_arrays

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PHP Arrays
What will be the output of the following PHP code?
$a1 = array("red", "green");
$a2 = array("blue", "yellow");
print_r(array_merge($a1, $a2));

Array ( [0] => red [1] => green)

Array ( [0] => red [1] => green [2] => blue [3] => yellow )

Array ( [0] => blue [1] => yellow [2] => red [3] => green )

Array ( [0] => blue [1] => yellow )

Array ( [0] => red [1] => green)

Array ( [0] => red [1] => green [2] => blue [3] => yellow )

Array ( [0] => blue [1] => yellow [2] => red [3] => green )

Array ( [0] => blue [1] => yellow )

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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] => NYC [1] => LA [2] => Paris)

None of the mentioned

Array ( [0] => NYC [1] => LA [2] => Paris [3] => Paris )

Array ( [0] => LA [1] => Paris [2] => Paris )

Array ( [0] => NYC [1] => LA [2] => Paris)

None of the mentioned

Array ( [0] => NYC [1] => LA [2] => Paris [3] => Paris )

Array ( [0] => LA [1] => Paris [2] => Paris )

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PHP Arrays
What will be the output of the following PHP code ?
$city_west = array("NYC", "London");
$city_east = array("Mumbai", "Beijing");
print_r(array_replace($city_west, $city_east));

Array ( [1] => Mumbai [0] => Beijing )

Array ( [0] => NYC [1] => London )

Array ( [1] => NYC [0] => London )

Array ( [0] => Mumbai [1] => Beijing )

Array ( [1] => Mumbai [0] => Beijing )

Array ( [0] => NYC [1] => London )

Array ( [1] => NYC [0] => London )

Array ( [0] => Mumbai [1] => Beijing )

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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?

ksort()

krsort()

asort()

usort()

sort()

ksort()

krsort()

asort()

usort()

sort()

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PHP Arrays

PHP Arrays What will be the output of the following PHP code?$number = array ("4", "hello", 2);echo (array_sum ($number));

PHP Arrays What function computes the difference of arrays?

PHP Arrays What will be the output of the following PHP code?$a1 = array("red", "green");$a2 = array("blue", "yellow");print_r(array_merge($a1, $a2));

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);

PHP Arrays What will be the output of the following PHP code ?$city_west = array("NYC", "London");$city_east = array("Mumbai", "Beijing");print_r(array_replace($city_west, $city_east));

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?

PHP Arrays
What will be the output of the following PHP code?
$number = array ("4", "hello", 2);
echo (array_sum ($number));

PHP Arrays
What function computes the difference of arrays?

PHP Arrays
What will be the output of the following PHP code?
$a1 = array("red", "green");
$a2 = array("blue", "yellow");
print_r(array_merge($a1, $a2));

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);

PHP Arrays
What will be the output of the following PHP code ?
$city_west = array("NYC", "London");
$city_east = array("Mumbai", "Beijing");
print_r(array_replace($city_west, $city_east));

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?