Syntax:public DsDeque::copy (void): DsDeque
Parameters: this function does not contain any parameters.
Return value:this function returns a copy of Deque elements.The following programs illustrate the
Ds / Deque function::copy()in PHP:
Program 1:
// Declare deque $deck = new DsDeque ([1, 2, 3, 4, 5, 6]); echo ( " Elements in the Deque " );
// Show Deque elements var_dump ( $deck );
// Use the copy() function for
// copy Deque $deck_copy = $deck -> copy (); echo ( " Copy Deque elements " );
// Show Deque elements var_dump ( $deck_copy );
?> Exit:Elements in the Deque object (DsDeque) # 1 (6) {[0] = > int (1) [1] = > int (2) [2] = > int (3) [3] = > int (4) [4] = > int (5) [5] = > int (6)} Copy Deque elements object (DsDeque) # 2 (6) {[0] = > int (1) [1] = > int (2) [2] = > int (3) [3] = > int (4) [4] = > int (5) [5] = > int (6)} Program 2:
// Declare deque $deck = new DsDeque ([ "engineer" , "for" , "engineer" ]); echo ( " Elements in the Deque " );
// Show Deque elements print_r ( $deck );
// Use the copy() function for
// copy Deque $deck_copy = $deck -> copy (); echo ( " Copy Deque elements " );
// Show Deque elements print_r ( $deck_copy );
?> Exit:Elements in the Deque DsDeque Object ([0] = > engineer [1] = > for [2] = > engineer) Copy Deque elements DsDeque Object ([0] = > engineer [1] = > for [2] = > engineer)
Link: http: // php. net / manual / en / ds-deque.copy.php
