PHP SplFixedArray setSize() Function

The SplFixedArray::setSize() function is an inbuilt function in PHP which is used to set the size of the array.

Syntax:

bool SplFixedArray::setSize( $size )

Parameters: This function accepts a single parameter $size which specifies the size of the array.

Return Value: This function returns true on success, false otherwise.

Below programs illustrate the SplFixedArray::setSize() function in PHP:

Program 1:

<?php

// Create fixed size array
$gfg = new SplFixedArray(50);

// Print size before set
echo $gfg->getSize() . "\n";

// Set size of array
$gfg->setSize(110);

// Print result after set the size
echo $gfg->getSize() . "\n";
?>

Output:

50
110

Program 2:

<?php

// Create some fixed size array
$gfg1 = new SplFixedArray(0);
$gfg2 = new SplFixedArray(9);
$gfg3 = new SplFixedArray(100);
$gfg4 = new SplFixedArray(878);

// Print Size of the array
echo $gfg1->getSize() . "\n";
echo $gfg2->getSize() . "\n";
echo $gfg3->getSize() . "\n";
echo $gfg4->getSize() . "\n";

// Set array size
$gfg1->setSize(100);
$gfg2->setSize(200);

// Print size after set
echo $gfg1->getSize() . "\n";
echo $gfg2->getSize() . "\n";
?>

Output:

0
9
100
878
100
200

Reference: https://www.php.net/manual/en/splfixedarray.setsize.php