PHP Array Functions

PHP provides several built-in functions to manipulate arrays. In this page, you will learn about some of the most commonly used PHP array functions.

Syntax

The syntax of PHP array functions may vary depending on the function. However, most of the functions have a similar syntax as follows:

function_name(array);

Example

Let's take a look at an example of using the count() function to count the number of elements in an array:

<?php
$fruits = array("apple", "banana", "orange");
echo count($fruits);
?>

Output

The output of the above code will be:

3

Explanation

The count() function is used to count the number of elements in an array. In the above example, we have defined an array "$fruits" containing three elements. We then used the count() function to count the number of elements in the array and printed the result using the echo statement.

Use

PHP array functions are used to manipulate arrays. Some of the common operations performed on arrays include sorting, merging, searching, and filtering. The use of array functions makes it easier to handle arrays, and reduces the amount of code required.

Important Points

• Array functions take an array as input and return an output, which can be another array or a scalar value.
• Most of the array functions modify the input array directly, while some return a new array instead.
• PHP provides a large number of array functions, making it easy to manipulate arrays.

Summary

PHP array functions are a set of built-in functions that allow you to manipulate arrays. These functions make it easy to perform common operations such as counting, sorting, merging, searching, and filtering. Understanding these functions is essential for working with arrays in PHP.