What are the commonly used array functions and methods in PHP?

Commonly used array functions and methods in PHP are: 1. The "array_push()" function adds one or more elements to the end of the array; 2. The "count()" function returns the number of elements in the array; 3. The "array_pop()" function deletes and returns the elements at the end of the array; 4. The "array_shift()" function deletes and returns the elements at the beginning of the array; 5. The "sort()" function sorts the array in ascending order.

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

Commonly used array functions and methods in PHP are:

1. array_push() adds one or more elements to the end of the array

Example :

$my_array = array("apple", "banana");
array_push($my_array, "orange", "peach");
print_r($my_array);

The result is:

Array
(
    [0] => apple
    [1] => banana
    [2] => orange
    [3] => peach
)

2. count() returns the number of elements in the array

Example:

$my_array = array("apple", "banana", "orange");
$count = count($my_array);
echo "The count of my_array is " . $count;

The result is:

The count of my_array is 3

3. array_pop() deletes and returns the element at the end of the array

Example:

$my_array = array("apple", "banana", "orange");
$last_element = array_pop($my_array);
print_r($my_array);
echo "The last element was " . $last_element;

Result For:

Array
(
    [0] => apple
    [1] => banana
)
The last element was orange

4, array_shift() deletes and returns the element at the beginning of the array

Example:

$my_array = array("apple", "banana", "orange");
$first_element = array_shift($my_array);
print_r($my_array);
echo "The first element was " . $first_element;

The result is:

Array
(
    [0] => banana
    [1] => orange
)
The first element was apple

5. sort() sorts the array in ascending order

Example:

$my_array = array(9, 2, 5, 3, 8);
sort($my_array);
print_r($my_array);

The result is:

Array
(
    [0] => 2
    [1] => 3
    [2] => 5
    [3] => 8
   ）

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