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PHP Ds / Queue copy () Function

Syntax:
DsQueue public DsQueue::copy (void)
Parameters: this function takes no parameters.Return Value:This function creates a shallow copy of an existing queue instance and returns it.The following programs illustrate the Ds / Queue::copy()in PHP:Program 1:  
// Declare a new queue $q = new DsQueue();  
// Add items to the queue $q -> push ( "One" ); $q -> push ( "Two" ); $q -> push ( "Three" );  
// Create a copy of this queue
// copy and print it print_r ( $q -> copy ());  
?>
Exit:
DsQueue Object ( [0] = > One [1] = > Two [2] = > Three)
Program 2:  
// Declare new queue $q = new DsQueue();  
// Add items to the queue $q -> push ( "Geeks" ); $q -> push ( "for" ); $q -> push ( "Geeks" );  
// Create a copy of this queue
// copy and print it print_r ( $q -> copy ());  
?>
Exit:
DsQueue Object ( [0] = > Geeks [1] = > for [2] = > Geeks)
Link : http://php.net/manual/en/ds-priorityqueue.copy.php

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