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
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()

usort()

ksort()

krsort()

sort()

asort()

usort()

ksort()

krsort()

sort()

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

6

4

2

4hello2

6

4

2

4hello2

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PHP Arrays
What function computes the difference of arrays?

diff_array

arrays_diff

array_diff

diff_arrays

diff_array

arrays_diff

array_diff

diff_arrays

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PHP Arrays
What will be the output of the following PHP code?
$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");
print_r(array_change_key_case($age, CASE_UPPER));

Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )

Array ( [PeTeR] => 35 [BeN] => 37 [Joe] => 43 )

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )

Array ( [peter] => 35 [ben] => 37 [joe] => 43 )

Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )

Array ( [PeTeR] => 35 [BeN] => 37 [Joe] => 43 )

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )

Array ( [peter] => 35 [ben] => 37 [joe] => 43 )

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PHP Arrays
What will be the output of the following PHP code?
$a = array("red", "green", "blue");
array_pop($a);
print_r($a);

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

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

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

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

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

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

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

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

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PHP Arrays
Array values are keyed by values (called indexed arrays) or using values (called associative arrays). Of course, these key methods can be combined as well.

Integer, string

Even number, string

Positive number, negative number

String, Boolean

Float, string

Integer, string

Even number, string

Positive number, negative number

String, Boolean

Float, string

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PHP Arrays

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

PHP Arrays What will be the output of the following PHP code?$a = array("red", "green", "blue");array_pop($a);print_r($a);

PHP Arrays Array values are keyed by ______ values (called indexed arrays) or using ______ values (called associative arrays). Of course, these key methods can be combined as well.

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

PHP Arrays
What will be the output of the following PHP code?
$a = array("red", "green", "blue");
array_pop($a);
print_r($a);

PHP Arrays
Array values are keyed by values (called indexed arrays) or using values (called associative arrays). Of course, these key methods can be combined as well.