Search results
PHP Indexed Arrays. In indexed arrays each item has an index number. By default, the first item has index 0, the second item has item 1, etc.
an array does not contain index when elements are associative. An array in php can contain mixed values like this: $var = array("apple", "banana", "foo" => "grape", "carrot", "bar" => "donkey"); print_r($var); Gives you: Array ( [0] => apple [1] => banana [foo] => grape [2] => carrot [bar] => donkey )
The following example demonstrates how to create a two-dimensional array, how to specify keys for associative arrays, and how to skip-and-continue numeric indices in normal arrays.
array_is_list — Checks whether a given array is a list. array_key_exists — Checks if the given key or index exists in the array. array_key_first — Gets the first key of an array. array_key_last — Gets the last key of an array. array_keys — Return all the keys or a subset of the keys of an array.
Arrays. An array in PHP is actually an ordered map. A map is a type that associates values to keys. This type is optimized for several different uses; it can be treated as an array, list (vector), hash table (an implementation of a map), dictionary, collection, stack, queue, and probably more.
In this tutorial you will learn how to create indexed, associative, and multidimensional arrays in PHP as well as how to access their elements.
Use the array() construct or [] syntax to create a new array. For the indexed array, the first index begins with zero. To access an array element, use an index in the square bracket $array_name[index]. Use the count() function to get the number of elements in an array.
