SplFixedArray::setSize

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

SplFixedArray::setSizeChange the size of an array

Descrizione

public SplFixedArray::setSize(int $size): bool

Change the size of an array to the new size of size. If size is less than the current array size, any values after the new size will be discarded. If size is greater than the current array size, the array will be padded with null values.

Elenco dei parametri

size

The new array size. This should be a value between 0 and PHP_INT_MAX.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Errori/Eccezioni

Throws InvalidArgumentException when size is less than zero.

Raises E_WARNING when size cannot be used as a number.

Esempi

Example #1 SplFixedArray::setSize() example

<?php
   $array 
= new SplFixedArray(5);
   echo 
$array->getSize()."\n";
   
$array->setSize(10);
   echo 
$array->getSize()."\n";
?>

Il precedente esempio visualizzerĂ :

5
10

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