What will be the output of the following PHP code ?<br/>$array = array("red", "green");<br/>array_push($array, "blue", "yellow");<br/>print_r($array);

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

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 )

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

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

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

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PHP Arrays
What will be the output of the following PHP code?
$arr = array ("picture1.JPG", "picture2.jpg", "Picture10.jpg", "picture20.jpg");
sort($arr);
print_r($arr);

Array ( [0] => picture1.JPG [1] => Picture10.jpg [2] => picture2.jpg [3] => picture20.jpg )

Array ( [0] => Picture10.jpg [1] => picture1.JPG [2] => picture2.jpg [3] => picture20.jpg )

Array ( [0] => Picture10.jpg [1] => picture1.JPG [2] => picture20.jpg [3] => picture2.jpg )

Array ( [0] => picture1.JPG [1] => picture2.jpg [2] => Picture10.jpg [3] => picture20.jpg )

Array ( [0] => picture1.JPG [1] => Picture10.jpg [2] => picture2.jpg [3] => picture20.jpg )

Array ( [0] => Picture10.jpg [1] => picture1.JPG [2] => picture2.jpg [3] => picture20.jpg )

Array ( [0] => Picture10.jpg [1] => picture1.JPG [2] => picture20.jpg [3] => picture2.jpg )

Array ( [0] => picture1.JPG [1] => picture2.jpg [2] => Picture10.jpg [3] => picture20.jpg )

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PHP Arrays
Absent any actual need for choosing one method over the other, does passing arrays by value to a read-only function reduce performance compared to passing them by reference?

Yes, but only if the function modifies the contents of the array.

Yes, because PHP must monitor the execution of the function to determine if changes are made to the array.

Yes, but only if the array is large.

No

Yes, because the interpreter must always create a copy of the array before passing it to the function.

Yes, but only if the function modifies the contents of the array.

Yes, because PHP must monitor the execution of the function to determine if changes are made to the array.

Yes, but only if the array is large.

No

Yes, because the interpreter must always create a copy of the array before passing it to the function.

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PHP Arrays
What will be the output of the following PHP code?
$fruits = array ("apple", "orange", "banana");
echo (next($fruits));
echo (next($fruits));

appleorange

appleapple

orangebanana

orangeorange

appleorange

appleapple

orangebanana

orangeorange

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PHP Arrays
What elements will the following script output?
$array = array (true => 'a', 1 => 'b');
var_dump ($array);

1 => 'b'

True => 'a', 1 => 'b'

None

It will output NULL

1 => 'b'

True => 'a', 1 => 'b'

None

It will output NULL

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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?

sort()

ksort()

usort()

krsort()

asort()

sort()

ksort()

usort()

krsort()

asort()

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PHP Arrays

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

PHP Arrays What will be the output of the following PHP code?$arr = array ("picture1.JPG", "picture2.jpg", "Picture10.jpg", "picture20.jpg");sort($arr);print_r($arr);

PHP Arrays Absent any actual need for choosing one method over the other, does passing arrays by value to a read-only function reduce performance compared to passing them by reference?

PHP Arrays What will be the output of the following PHP code?$fruits = array ("apple", "orange", "banana");echo (next($fruits));echo (next($fruits));

PHP Arrays What elements will the following script output?$array = array (true => 'a', 1 => 'b');var_dump ($array);

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 ?
$array = array("red", "green");
array_push($array, "blue", "yellow");
print_r($array);

PHP Arrays
What will be the output of the following PHP code?
$arr = array ("picture1.JPG", "picture2.jpg", "Picture10.jpg", "picture20.jpg");
sort($arr);
print_r($arr);

PHP Arrays
Absent any actual need for choosing one method over the other, does passing arrays by value to a read-only function reduce performance compared to passing them by reference?

PHP Arrays
What will be the output of the following PHP code?
$fruits = array ("apple", "orange", "banana");
echo (next($fruits));
echo (next($fruits));

PHP Arrays
What elements will the following script output?
$array = array (true => 'a', 1 => 'b');
var_dump ($array);

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?