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Exam 6: Manipulating Arrays

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Question 21

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The ____________________ function determines whether a given value exists in an array and returns the index or key of the first matching element if it exists or FALSE if it does not.

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array_sear...

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Question 22

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The ____ argument of the array_splice() function indicates the name of the array you want to modify.

A) array_name
B) array_value
C) array_function
D) array_mod

E) B) and D)
F) All of the above

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Question 23

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The array_push() function adds one or more elements to the end of an array.

The most common type of multidimensional array is a(n) ____ array.

To assign the first element of an associative array with a number other than zero (0), use the array operator ____________________ .

PHP creates indexed arrays by default with a starting element of 0.

To remove an indexed array's elements, you need to run the array_values() function.

____________________ function removes the first element from the beginning of an array.

The array_shift() function adds one or more elements to the beginning of an array.

You refer to the values in a multidimensional indexed array by including two sets of brackets, one which refers to the row and one which refers to the column.

Use the array_keys() function to return an indexed array containing all the keys in an associative array.

Use the array_slice() function to return or copy a portion of an array and assign it to another array.

With associative arrays, you can use any alphanumeric keys that you want for the array elements.

The array_key_exists() function determines whether a given____________________ or key exists.

The ____ function lets you add or remove elements anywhere else in the array.

The array_splice() function adds or removes array elements located anywhere in an array.

You pass the unset() function the array name and the ____________________ of the element you want to remove.

The array_push() function ____ one or more elements to the end of the array.

The most commonly used array sorting functions are ____________________ and rsort() for indexed arrays.

The first set of indexes (or keys) in a ____________________ array determines the number of rows in the array and the second set of indexes (or keys) determines the number of columns in the array.