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 capacity var_dump( $seq ->capacity());
// Allocate capacity $seq ->allocate(50);
// Display capacity var_dump( $seq ->capacity());
// Allocate capacity $seq ->allocate(80);
// Display capacity var_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