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'23]); // true
array_is_list([=> 'apple''orange']); // true

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

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

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

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

Note

Nota:

This function returns true on empty arrays.

Vedere anche:

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