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SplFixedArray::__construct

PHP function Edit on GitHub ✎

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

Constructs a new fixed array

Description

SplFixedArray::__construct(int $size = 0)

Initializes a fixed array with a number of null values equal to size.

size: The size of the fixed array. This expects a number between 0 and PHP_INT_MAX.

Throws a ValueError when size is a negative integer.

Version	Description
8.0.0	Now throws a `ValueError` if `size` is a negative; previously it threw a `InvalidArgumentException`.

php

<?php
$array = new SplFixedArray(5);

$array[1] = 2;
$array[4] = "foo";

foreach($array as $v) {
  var_dump($v);
}
?>

The above example will output:

output

NULL
int(2)
NULL
NULL
string(3) "foo"

Source: reference/spl/splfixedarray/construct.xml · from the official PHP manual (php/doc-en)