SplFixedArray
PHP Manual

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.

Return Values

No value is returned.

Errors/Exceptions

Throws InvalidArgumentException when size is a negative number.

Raises E_WARNING when size cannot be parsed as a number.

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"