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PHP Ds / Deque () Function

Syntax:
public DsDeque::capacity (void): int
Parameters: this function takes no parameters.Returned value:this function returns the current capacity of Deque.The following programs illustrate the Ds / Deque function::acity()in PHP:Program 1:  
// Highlight the default deque $deck = new DsDeque(); echo ( " Default size of Deque: " );  
// Display the current deck capacity var_dump ( $deck -> capacity());  
// Allocate space for 50 values ​​in the deck $deck -> allocate (50); echo ( " Allocated size of Deque: " );  
// Display the current deck capacity var_dump ( $deck -> capacity());  
?>
Exit:
Default size of Deque: int (8) Allocated size of Deque: int (64)
Program 2:  
// Declare Deque $deck = new DsDeque ([1, 2, 3, 4, 5, 6]); echo ( " Elements of Deque " );  
// Show Deque elements var_dump ( $deck ); echo ( " Capacity of Deque: " );  
// Show Deque capacity var_dump ( $deck -> capacity());  
?>
Exit:
Elements of Deque object (DsDeque) # 1 (6) {[0] = > int (1) [1] = > int (2) [2] = > int (3) [3] = > int (4) [4] = > int (5) [5] = > int (6)} Capacity of Deque: int (8)
Link: http://php.net/manual/en/ds-deque.capacity.php

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