Constructs a new fixed array

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- Constructs a new fixed array

# SplFixedArray::__construct

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

SplFixedArray::__construct — Constructs a new fixed array

### Description

public SplFixedArray::__construct(int `$size` = 0)

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

### Parameters

`size`

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

### Errors/Exceptions

Throws a ValueError when `size` is a negative integer.

### Changelog

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

### Examples

Example #1 SplFixedArray::__construct() example

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

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

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

The above example will output:

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