array_is_list

(PHP 8 >= 8.1.0)

array_is_listChecks whether a given array is a list

Descrizione

array_is_list(array $array): bool

Determines if the given array is a list. An array is considered a list if its keys consist of consecutive numbers from 0 to count($array)-1.

Elenco dei parametri

array

The array being evaluated.

Valori restituiti

Returns true if array is a list, false otherwise.

Esempi

Example #1 array_is_list() example

<?php

array_is_list
([]); // true
array_is_list(['apple', 2, 3]); // true
array_is_list([0 => 'apple', 'orange']); // true

// The array does not start at 0
array_is_list([1 => 'apple', 'orange']); // false

// The keys are not in the correct order
array_is_list([1 => 'apple', 0 => 'orange']); // false

// Non-integer keys
array_is_list([0 => 'apple', 'foo' => 'bar']); // false

// Non-consecutive keys
array_is_list([0 => 'apple', 2 => 'bar']); // false
?>

Note

Nota:

This function returns true on empty arrays.

Vedere anche:

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top