PHP reference

is_array

Checks whether a value is an array.

Syntax

is_array(mixed $value): bool

Parameter	Type	Description
$value	mixed	The value to check.

bool`true` if the value is an array.

An array and a string:

<?php
 
var_dump(is_array([1, 2]));
var_dump(is_array('1, 2'));

Output:

bool(true)
bool(false)

A single value or a list of values:

<?php
 
function total($value)
{
    return is_array($value) ? array_sum($value) : $value;
}
 
echo total(5), ' ', total([1, 2, 3]);

Output:

5 6

Data types — The main PHP data types — strings, numbers, booleans, arrays and null.