Array basics – PHP

PHP arrays are used to store multiple values in a single variable. They can hold various data types, such as integers, strings, and even other arrays. Arrays can be indexed numerically or associatively using strings as keys.

To create an array, you can use the array() function or a shorthand notation using square brackets []. For example, $myArray = array(1, 2, 3) or $myArray = [1, 2, 3].

You can access individual elements of an array using their index or key. For example, $myArray[0] would give you the first element of the numerically-indexed array, while $myArray[“key”] would give you the value associated with the “key” string in an associative array.

PHP provides several functions for working with arrays, such as count() to get the number of elements in an array, array_push() to add an element to the end of an array, and array_merge() to merge two or more arrays together.

Arrays are a powerful tool in PHP, and they are used extensively in web development to store and manipulate data.