PHP | Ds\Sequence allocate() Function
Mahadev99
The Ds\Sequence::allocate() function is an inbuilt function in PHP which is used to allocate enough memory for required capacity.
Syntax:
void abstract public Ds\Sequence::allocate ( int $capacity )
Parameter: This function accepts single parameter $capacity which indicate number of capacity allocated.
Return value: This function does not return any values.
Below programs illustrate the Ds\Sequence::allocate() function in PHP:
Example 1:
<?php // Create new sequence$seq = new \Ds\Vector(); // Use capacity() function to // display the capacityvar_dump($seq->capacity()); // Allocate capacity$seq->allocate(50); // Display capacityvar_dump($seq->capacity()); // Allocate capacity$seq->allocate(80); // Display capacityvar_dump($seq->capacity());?> |
Output:
int(8) int(50) int(80)
Example 2:
<?php // Create new sequence$seq = new \Ds\Vector(); // Declare capacity array$arr = array(10, 20, 30, 40); // Loop run for every array element foreach ($arr as $val) { // Allocate capacity $seq->allocate($val); // Display capacity var_dump($seq->capacity());} ?> |
Output:
int(10) int(20) int(30) int(40)
Reference: http://php.net/manual/en/ds-sequence.allocate.php
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