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PHP Ds / Set allocate () function

Syntax:
void public DsSet::allocate ($capacity)
Parameters: This function takes one parameter, $Capacity, which contains the value of the capacity to be allocated. Capacity is always rounded to the power of 2.Returned value:This function does not return any values.The following programs illustrate the Ds / Set::allocate()in PHP:Program 1:  
// Declare a new empty set $set = new DsSet(); echo ( " Allocated Space is: " );  
// Using the Capacity() function var_dump ( $set -> capacity());  
// Use the allocate() function for
// share power $set -> allocate (50); echo ( " Allocated space is: " );  
// Show selected vector
// capacity var_dump ( $set -> capacity());  
?>
Exit:
Allocated Space is : int (8) Allocated space is: int (64)
Program 2: < ? php  
// Declare an empty set $set = new DsSet(); echo ( " Allocated Space is: " );  
// Using the Capacity() function var_dump ( $set -> capacity());  
// Use the allocate() function for
// share power $set -> allocate (5); echo ( " Allocated space is: " );  
// Show capacity var_dump ( $set -> capacity()); echo ( " Allocated space is: " );  
// Use the allocate() function for
// share power $set -> allocate (120);  
// Show capacity var_dump ( $set -> capacity()); ?>
Exit:
Allocated Space is : int (8) Allocated space is: int (8) Allocated space is: int (128)
Link:http://php.net/manual/en/ds-set.allocate.php

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